- Rational engineering ofAcinetobacter tandoiiglutamate dehydrogenase for asymmetric synthesis ofl-homoalanine through biocatalytic cascades
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l-Homoalanine, a useful building block for the synthesis of several chiral drugs, is generally synthesized through biocascades using natural amino acids as cheap starting reactants. However, the addition of expensive external cofactors and the low efficiency of leucine dehydrogenases towards the intermediate 2-ketobutyric acid are two major challenges in industrial applications. Herein, a dual cofactor-dependent glutamate dehydrogenase fromAcinetobacter tandoii(AtGluDH) was identified to help make full use of the intracellular pool of cofactors when using whole-cell catalysis. Through reconstruction of the hydrophobic network between the enzyme and the terminal methyl group of the substrate 2-ketobutyric acid, the strict substrate specificity ofAtGluDH towards α-ketoglutarate was successfully changed, and the activity obtained by the most effective mutant (K76L/T180C) was 17.2 times higher than that of the wild-type protein. A three-enzyme co-expression system was successfully constructed in order to help release the mass transfer restriction. Using 1 Ml-threonine, which is close to the solubility limit, we obtained a 99.9% yield ofl-homoalanine in only 3.5 h without adding external coenzymes to the cascade, giving 99.9% ee and a 29.2 g L?1h?1space-time yield. Additionally, the activities of the engineeredAtGluDH towards some other hydrophobic amino acids were also improved to 1.1-11.2 fold. Therefore, the engineering design of some dual cofactor-dependent GluDHs could not only eliminate the low catalytic activity of unnatural substrates but also enhance the cofactor utilization efficiency of these enzymes in industrial applications.
- Diao, Shiqing,Jiang, Shuiqin,Liu, Yan,Sun, Yangyang,Wang, Hualei,Wang, Liuzhu,Wei, Dongzhi
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p. 4208 - 4215
(2021/06/30)
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- Scope and limitations of reductive amination catalyzed by half-sandwich iridium complexes under mild reaction conditions
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The conversion of aldehydes and ketones to 1° amines could be promoted by half-sandwich iridium complexes using ammonium formate as both the nitrogen and hydride source. To optimize this method for green chemical synthesis, we tested various carbonyl substrates in common polar solvents at physiological temperature (37 °C) and ambient pressure. We found that in methanol, excellent selectivity for the amine over alcohol/amide products could be achieved for a broad assortment of carbonyl-containing compounds. In aqueous media, selective reduction of carbonyls to 1° amines was achieved in the absence of acids. Unfortunately, at Ir catalyst concentrations of 1 mM in water, reductive amination efficiency dropped significantly, which suggest that this catalytic methodology might be not suitable for aqueous applications where very low catalyst concentration is required (e.g., inside living cells).
- Nguyen, Dat P.,Sladek, Rudolph N.,Do, Loi H.
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supporting information
(2020/07/15)
-
- Biocascade Synthesis of L-Tyrosine Derivatives by Coupling a Thermophilic Tyrosine Phenol-Lyase and L-Lactate Oxidase
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A one-pot biocascade of two enzymatic steps catalyzed by an l-lactate oxidase and a tyrosine phenol-lyase has been successfully developed in the present study. The reaction provides an efficient method for the synthesis of l-tyrosine derivatives, which exhibits readily available starting materials and excellent yields. In the first step, an in situ generation of pyruvate from readily available bio-based l-lactate catalyzed by a highly active l-lactate oxidase from Aerococcus viridans (AvLOX) was developed (using oxygen as oxidant and catalase as hydrogen peroxide removing reagent). Pyruvate thus produced underwent C–C coupling with phenol derivatives as acceptor substrate using specially designed thermophilic tyrosine phenol-lyase mutants from Symbiobacterium toebii (TTPL). Overall, this cascade avoids the high cost and easy decomposition of pyruvate and offered an efficient and environmentally friendly procedure for l-tyrosine derivatives synthesis.
- Jiang, Yiqi,Ju, Shuyun,Li, Guosi,Lian, Jiazhang,Lin, Jianping,Wu, Mianbin,Xue, Hailong,Yang, Lirong
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supporting information
(2020/02/25)
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- Direct Synthesis of Free α-Amino Acids by Telescoping Three-Step Process from 1,2-Diols
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A practical telescoping three-step process for the syntheses of α-amino acids from the corresponding 1,2-diols has been developed. This process enables the direct synthesis of free α-amino acids without any protection/deprotection step. This method was also effective for the preparation of a 15N-labeled α-amino acid. 1,2-Diols bearing α,β-unsaturated ester moieties afforded bicyclic α-amino acids through intramolecular [3 + 2] cycloadditions. A preliminary study suggests that the resultant α-amino acids are resolvable by aminoacylases with almost complete selectivity.
- Inada, Haruki,Shibuya, Masatoshi,Yamamoto, Yoshihiko
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supporting information
p. 709 - 713
(2019/01/25)
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- Electrosynthesis of amino acids from biomass-derivable acids on titanium dioxide
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Seven amino acids were electrochemically synthesized from biomass-derivable α-keto acids and NH2OH with faradaic efficiencies (FEs) of 77-99% using an earth-Abundant TiO2 catalyst. Furthermore, we newly constructed a flow-Type electrochemical reactor, named a "polymer electrolyte amino acid electrosynthesis cell", and achieved continuous production of alanine with an FE of 77%.
- Fukushima, Takashi,Yamauchi, Miho
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supporting information
p. 14721 - 14724
(2019/12/24)
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- Oxidative cyclization of N-methyl-dopa by a fungal flavoenzyme of the amine oxidase family
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Flavin-dependent enzymes catalyze many oxidations, including formation of ring structures in natural products. The gene cluster for biosynthesis of fumisoquins, secondary metabolites structurally related to isoquinolines, in the filamentous fungus Aspergillus fumigatus harbors a gene that encodes a flavoprotein of the amine oxidase family, termed fsqB (fumisoquin biosynthesis gene B). This enzyme catalyzes an oxidative ring closure reaction that leads to the formation of isoquinoline products. This reaction is reminiscent of the oxidative cyclization reported for berberine bridge enzyme and tetrahydrocannabinol synthase. Despite these similarities, amine oxidases and berberine bridge enzyme–like enzymes possess distinct structural properties, prompting us to investigate the structure–function relationships of FsqB. Here, we report the recombinant production and purification of FsqB, elucidation of its crystal structure, and kinetic analysis employing five putative substrates. The crystal structure at 2.6 ? resolution revealed that FsqB is a member of the amine oxidase family with a covalently bound FAD cofactor. N-methyl-dopa was the best substrate for FsqB and was completely converted to the cyclic isoquinoline product. The absence of the meta-hydroxyl group, as e.g. in L-Nmethyl-tyrosine, resulted in a 25-fold lower rate of reduction and the formation of the demethylated product L-tyrosine, instead of a cyclic product. Surprisingly, FsqB did not accept the D-stereoisomer of N-methyltyrosine, in contrast to N-methyl-dopa, for which both stereoisomers were oxidized with similar rates. On the basis of the crystal structure and docking calculations, we postulate a substrate-dependent population of distinct binding modes that rationalizes stereospecific oxidation in the FsqB active site.
- Lahham, Majd,Pavkov-Keller, Tea,Fuchs, Michael,Niederhauser, Johannes,Chalhoub, Gabriel,Daniel, Bastian,Kroutil, Wolfgang,Gruber, Karl,Macheroux, Peter
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p. 17021 - 17032
(2018/11/21)
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- METHOD FOR SYNTHESIS OF KETO ACID OR AMINO ACID BY HYDRATION OF ACETHYLENE COMPOUND
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An object of the present invention is to provide a method for synthesis of keto acids by hydration of an acetylene compound (acetylene-carboxylic acids) under mild conditions free from harmful mercury catalysts and a method for synthesis of amino acids from acetylene-carboxylic acids in a single container (one-pot or tandem synthesis). In one embodiment of the method according to the present invention for synthesis of keto acids, acetylene-carboxylic acids is hydrated in the presence of a metal salt represented by General Formula (1), where M1 represents an element in Group VIII, IX, or X of the periodic table, and X1, X2, or X3 ligand represents halogen, H2O, or a solvent molecule, and k represents a valence of a cation species, and Y represents an anion species, and L represents a valence of the anion species, and each of K and L independently represents 1 or 2, and k × m = L × n.
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Page/Page column 24
(2008/12/06)
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- Method for the production of high-level soluble human recombinant interferon alpha in e. coli and vectors useful for such a production
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Method for the production of high-level soluble human recombinant interferon alpha protein (rhuIFNα) in E. coli and vectors useful for such a production. Said method comprises the steps of: (1) Transforming an E. coli selected in the group consisting of E. coli protease deficient host strains, and E. coli reductase deficient host strains, with a recombinant expression vector comprising the sequence encoding the glutathione-S-transferase (GST), a junction sequence including a recognition site for a specific protease and a sequence able to encode an interferon alpha (IFN alpha) protein under the control of an inducible promoter, said vector encoding a GST-IFN alpha fusion protein (2) Expressing said interferon alpha protein in conditions comprising the induction of the expression with 0.1 mM-0.5 mM IPTG and a growth temperature of 25° and/or 37°C, depending on said E. coli strain and (3) Isolating the expressed IFN alpha protein.
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- Growth Hormone Secretagogue Receptor 1A Ligands
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The present invention relates to new growth hormone secretagogue receptor 1A (GHS-R 1A) ligands, and pharmaceutical compositions comprising any of the new GHS-R1 A ligands. The ligands are suitable for a wide range of applications, and thus the present invention also relates to use of the GHS-R1 A ligands according to the present invention in the manufacture of a medicament for the treatment of an individual in need thereof. In another aspect, the present invention relates to a method of treatment of an individual in need thereof, comprising administering to said individual one or more of the GHS-R1A ligands disclosed herein, such as e.g. for treatment of cancer cachexia.
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- Cell-proliferation inhibiting VPg proteins, fragments or analogs thereof and their applications
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Use of VPg proteins, fragments or analogs thereof having the ability to bind an eukaryotic initiation factor eIF4E, for inhibiting cell-proliferation.
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- Compositions, kits, and methods relating to the human FEZ1 gene, a novel tumor suppressor gene
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The invention relates to isolated polynucleotides homologous with a portion of one strand of the human tumor suppressor gene, FEZ1, and to the tumor suppressor protein encoded thereby, Fez1. The polynucleotides are useful, for example, as probes, primers, portions of expression vectors, and the like. The invention also includes diagnostic, therapeutic, cell proliferation enhancement, and screening methods which involve these polynucleotides and protein. The invention further includes kits useful for performing the methods of the invention.
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- Cell adhesion and extracellular matrix proteins
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Various embodiments of the invention provide human cell adhesion and extracellular matrix proteins (CADECM) and polynucleotides which identify and encode CADECM. Embodiments of the invention also provide expression vectors, host cells, antibodies, agonists, and antagonists. Other embodiments provide methods for diagnosing, treating, or preventing disorders associated with aberrant expression of CADECM.
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- A highly practical RCM approach towards a molecular building kit of spirocyclic reverse turn mimics
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The development of privileged molecular scaffolds efficiently mimicking reverse turn motifs and thus increasing both binding and selectivity and enabling the elucidation of the bio-active conformation of a natural peptide has attracted remarkable interest. The frequent occurrence of proline in various turn patterns initiated the design of proline-based reverse turn mimetics. As a structural hybridization of a highly potent type VI β-turn inducer 1 with saturated spirocyclic lactams 3 efficiently mimicking type II β turns, we developed a versatile synthetic route towards unsaturated spirocyclic lactams of type 2, when Seebach's self-reproduction of chirality methodology was combined with a peptide coupling reaction and Grubbs' ring-closing metathesis. By this means, a variety of model peptides with six- up to nine-membered lactam rings were accessible following a uniform pathway. Introduction of suitably protected templates into solid-phase peptide synthesis gave rise to unsaturated spirocyclic analogues of the naturally occurring neuropeptide neurotensin. Spectroscopic investigations as well as DFT calculations on a high level of theory revealed a remarkable dependence of the reverse-turn inducing potency on the ring size. While the secondary structure of the unsaturated spirocyclic ε-lactam 12 closely agrees with the reference γlactam 3a, the unsaturated δ-lactam 11 serves as an extraordinarily potent β-turn inducer which is even superior to β-lactams of type 3b. The eight-membered unsaturated spirocyclic lactam 13 adopts a conformation almost ideally matching the prerequisites for a canonical type II β turn with the highest stability of the whole series. In contrast, the nine-membered spirolactam 14 represents a scaffold with a high conformational flexibility.
- Bittermann, Holger,Boeckler, Frank,Einsiedel, Juergen,Gmeiner, Peter
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p. 6315 - 6322
(2008/09/19)
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- Plant peptide with antimicrobial activity
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The invention concerns novel peptides, in particular plant peptides, having an antimicrobial activity and a cytotoxic activity, in particular for plant cells. The invention also concerns polynucleotides coding for said peptides, vectors comprising said polynucleotides, micro-organisms and cells transformed with said vectors, transgenic organisms whereof all of part of the cells contain and/or express said vectors, uses of said peptides and said polynucleotides, in particular as plant-specific antimicrobial agents. The invention further concerns an antimicrobial and/or cytotoxic method for treating plants.
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- DISUBSTITUTED CUCURBITURIL-BONDED SILICA GEL
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A disubstituted cucurbituril-bonded silica gel and its use are provided. The disubstituted cu-curbituril-bonded silica gel is useful for removal of air pollutants or water contaminants, and separation and purification of biological, organic, inorganic, or ionic substances.
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Page/Page column 19
(2008/06/13)
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- HIGH-AFFINITY INTERLEUKIN-4 MUTEINS
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A recombinant human IL-4 mutein numbered in accordance with wild-type IL-4 wherein the mutein comprises at least one amino acid substitution in the binding surface of either the A- or C-alpha helices of the wild-type IL-4 whereby the mutein binds to the IL-4R alpha receptor with at least greater affinity than native IL-4. The substitution is more preferably selected from the group of positions consisting of, in the A-helix, positions 13 and 16, and in the C-helix, positions 81 and 89. A most preferred embodiment is the recombinant human IL-4 mutein wherein the substitution at position 13 is Thr to Asp. Pharmaceutical compositions, amino acid and polynucleotide sequences encoding the muteins, transformed host cells, antibodies to the muteins, and methods of treatment are also described.
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- Process for producing alpha 2,3/ alpha 2,8-sialyltransferase and sialic acid-containing complex sugar
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The present invention can provide a process for producing a protein having α2,3/α2,8-sialyltransferase activity using a transformant comprising a DNA encoding a protein having α2,3/α2,8-sialyltransferase activity derived from a microorganism belonging to the genus Pasteurella and a process for producing a sialic acid-containing complex carbohydrate using a transformant capable of producing a protein having α2,3/α2,8-sialyltransferase activity derived from a microorganism.
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- Small peptides having apoptotic activities and their applications
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The present invention relates to nine residue peptides (M32-40) from flavivirus M ectodomain able to modulate specifically the apoptotic activity of diverse flavivirus, to pharmaceutical composition comprising the same and their use for the treatment and/or the prevention of flavivirus-linked infections and cancers.
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- Novel protein and use thereof
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A novel gene likely inhibiting the onset and progress of cancer. A protein having an amino acid sequence which is the same or substantially the same as the amino acid sequence represented by SEQ ID NO:4 or its salt; a polynucleotide encoding the same; and medicinal use, etc. thereof are provided.
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- Interleukin-2:remodeling and glycoconjugation of interleukin-2
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The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
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- CIS-ELEMENT REGULATING TRANSCRIPTION, TRANSCRIPTIONAL REGULATORY FACTOR BINDING SPECIFICALLY THERETO AND USE OF THE SAME
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The present invention provides a novel fructose responsive transcription control cis-element and a transcriptional regulatory factor that interacts therewith, a non-human animal having them transferred or inactivated, a diagnostic method for genetic susceptibility to a metabolic disorder using them, and a screening method for a prophylactic or therapeutic drug for a metabolic disorder using them.
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- Novel enoyl reductases and methods of use thereof
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The present provides structurally related enzymes that act as enoyl reductases. These enoyl reductases share a common amino acid consensus sequence, and bind a flavin cofactor. One particular enoyl reductase provided, FabK, catalyzes the identical reaction as the NADH-dependent enoyl-ACP reductase, FabI. Nucleic acids encoding the enoyl reductases, the enoyl reductases, and anitbodies for the enoyl reductases are also included. Methods are also provides for identifying agents that can act to prevent and/or treat bacterial infections.
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- Peptides of IL-2 and derivatives thereof
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The present invention relates to new peptides of IL-2, and derivatives thereof and their use as therapeutic agents.
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- Enzymes derived from thermophilic organisms that function as a chromosomal replicase, preparation and use thereof
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The present invention relates to an isolated DNA molecule from a thermophilic bacterium which encodes a DNA polymerase III-type enzyme subunit. Also encompassed by the present invention are host cells and expression system including the heterologous DNA molecule of the present invention, as well as isolated replication enzyme subunits encoded by such DNA molecules. Also disclosed is a method of producing a recombinant thermostable DNA polymerase III-type enzyme, or subunit thereof, from a thermophilic bacterium, which is carried out by transforming a host cell with at least one heterologous DNA molecule of the present invention under conditions suitable for expression of the DNA polymerase III-type enzyme, or subunit thereof, and then isolating the DNA polymerase III-type enzyme, or subunit thereof.
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- ENZYME FOR CLEAVAGE OF THE ANCHOR REGION OF SURFACE PROTEINS FROM GRAM POSITIVE BACTERIA
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The invention relates to an enzyme which cleaves surface proteins of gram-positive bacteria, to methods of detecting the enzyme, and methods of isolating the enzyme. In particular, the enzyme is isolated from a group A Streptococcus, and cleaves at the sequence LPXTGX (SEQ ID NO:1). A method for screening putative inhibitors of the enzyme which cleaves the anchor region of surface proteins from gram positive bacteria is also disclosed.
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- Assays for screening compounds which interact with cation channel proteins, mutant prokaryotic cation channel proteins, and uses thereof
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Assays for screeing potential drugs or agents that can interact and potentially bind to cation channel proteins, and potentially have uses in treating conditions related to the function of cation channel proteins is provided, along with prokaryotic cation channel proteins mutated to mimic eukaryotic cation channels, which can then be used in assays of the present invention.
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- EGF receptor epitope peptides and uses thereof
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The present invention relates generally to growth factor receptor epitope peptides, particularly EGF family receptor epitope peptides. The invention also relates to the use of the receptor peptides in generating antibodies which have anti-tumor or anti-cancer activity or in stimulating an immunological response. The invention further relates to antibodies specifically directed against the receptor peptides. Methods for generating an immune response and for treatment of tumors and cancer are also provided.
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- ACE-2 modulating compounds and methods of use thereof
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ACE-2 modulating compounds for the treatment of body weight disorders are disclosed. Methods of using the compounds and pharmaceutical compositions containing the compounds are also claimed.
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- pH-Dependent Chemoselective Synthesis of α-Amino Acids. Reductive Amination of α-Keto Acids with Ammonia Catalyzed by Acid-Stable Iridium Hydride Complexes in Water
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An acid-stable hydride complex [Cp*IrIII(bpy)H]+ {1, Cp* = η5-C5Me5, bpy = 2,2′-bipyridine} serves as the active catalyst for the highly chemoselective synthesis of α-amino acids by reductive aminatio
- Ogo, Seiji,Uehara, Keiji,Abura, Tsutomu,Fukuzumi, Shunichi
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p. 3020 - 3021
(2007/10/03)
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- T-CELL SELECTIVE INTERLEUKIN-4 AGONISTS
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The invention is directed to human IL-4 muteins numbered in accordance with wild-type IL-4 having T-cell activating activity, but having reduced endothelial cell activating activity. In particular, the invention is related to human IL-4 muteins wherein the surface-exposed residues of the D helix of the wild-type IL-4 are mutated whereby the resulting mutein causes T-cell proliferation, and causes reduced IL-6 secretion from HUVECs, relative to wild-type IL-4. This invention realizes a less toxic IL-4 mutant that allows greater therapeutic use of this interleukin. Further, the invention is directed to IL-4 muteins having single, double and triple mutations represented by the designators R121A, R121D, R121E, R121F, R121H, R121I, R121K, R121N, R121P, R121T, R121W; Y124A, Y124Q, Y124R, Y124S, Y124T; Y124A/S125A, T13D/R121E; and R121T/E122F/Y124Q, when numbered in accordance with wild-type IL-4 (His=1). The invention also includes polynucleotides coding for the muteins of the invention, vectors containing the polynucleotides, transformed host cells, pharmaceutical compositions comprising the muteins, and therapeutic methods of treatment.
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- CONJUGATES OF TRANSPORTER PEPTIDES AND NUCLEIC ACID ANALOGS, AND THEIR USE
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Constructs of peptides and nucleic acid analogs conjugated together for transport across a lipid membrane and for delivery into interactive contact with intracellular polynucleotides are disclosed. Transport is effected through at least the exterior membrane of a cell, and most likely also through the walls of subcellular structures separated from the cytosol by lipid membranes, including the nucleus, mitochondria, ribosomes, etc. Peptide nucleic acid (PNA) analog sequences conjugated through a labile disulfide bond to transporting peptides, are intracellulary cleaved, and target mRNA (antigene) or dsDNA (antisense).
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- Compositions and methods for promoting internalization and degradation of urokinase-type plasminogen activator
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The invention includes compositions and methods for promoting internalization and degradation of urokinase-type plasminogen activator.
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- Protein interaction method and composition
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A protein interaction method and composition are described. The method and composition are useful for a number of purposes including: reconstituting multisubunit protein complexes, identifying known binding subunits, determining the kinetics and order of self assembly of a multisubunit protein complex, and drug screening. The method involves contacting a conjugate with a solid surface having an immobilized first coil-forming peptide characterized by a selected charge and an ability to interact with a second, oppositely charged coil-forming peptide to form a stable α-helical coiled-coil heterodimer, where the conjugate comprises (a) the second, oppositely charged coil-forming peptide, and (b) a first subunit polypeptide which is one of a plurality of subunit polypeptides in a multisubunit complex. By said contacting the conjugate is bound to the solid surface. Other subunits of the complex are added under conditions effective to promote self-assembly of the subunit complex on the solid surface.
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- Highly homogeneous molecular markers for electrophoresis
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The invention relates to marker molecules for identifying physical properties of molecular species separated by the use of electrophoretic systems. The invention further relates to methods for preparing and using marker molecules.
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- Therapeutic and diagnostic methods and compositions based on jagged/notch proteins and nucleic acids
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This invention relates to therapeutic and diagnostic methods and compositions based on Jagged/Notch proteins and nucleic acids, and on their role in the signaling pathway relating to endothelial cell migration and/or differentiation. In addition, this invention provides a substantially purified Jagged protein, as well as a substantially purified nucleic acid or segment thereof encoding Jagged protein, or a functionally equivalent derivative, or allelic or species variant thereof. Further, this invention provides a substantially purified soluble Jagged protein and a substantially purified nucleic acid encoding same as well as a recombinant cell comprising a nucleic acid encoding a soluble Jagged protein. Soluble Jagged provides further therapeutic and diagnostic methods relating to diseases, disorders, and conditions involving Jagged/Notch signaling including, inter alia, angiogenesis, differentiation, and control of gene expression.
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- Insulin analogs with enhanced zinc binding
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The invention relates to insulin analogs exhibiting enhanced zinc binding capacity and to stable zinc complexes thereof having a retarded activity in comparison with human insulin. The invention further relates to a method for the production of said insulin analogs and to their use, particularly in pharmaceutical preparations for therapy of type I and type II diabetes mellitus.
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- Mst1 modulation of apoptosis in cardiac tissue and modultors of Mst1 for treatment and prevention of cardiac disease
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The present invention relates to methods and agents for treatment, amelioration and prevention of cardiac disease, including cardiac myopathy, chronic heart failure and for management and reduction of cardiac myocyte death which may occur in response to ischemia/reperfusion or following myocardial infarction or other injury to the heart. The invention relates to methods for screening cardiotherapeutic compounds, including compounds which modulate cardiac myocyte apoptosis, particularly targeting Mst1 and the Mst1 pathway. The present invention further encompasses compounds identified by such screening methods and compositions comprising these compounds. The invention also provides methods for treatment, amelioration and prevention of cardiac disease comprising administering compounds or agents which modulate, particularly inhibit, Mst1 or the Mst1 kinase pathway, including administering a nucleic acid encoding an altered form of Mst1, particularly a dominant negative Mst1, which acts as an antagonist of Mst1.
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- Novel G protein-coupled receptor protein, its DNA and ligand thereof
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The polypeptides in the present invention possess the effects of promoting and inhibiting the secretion of prolactin, and are thus useful as drugs for the prevention and treatment of various diseases, in terms of prolactin secretion stimulants, which are associated with the secretion of prolactin, such as hypoovarianism, spermatic underdevelopment, menopausal symptoms, hypothyroidism, etc. The polypeptides are useful as drugs for the prevention and treatment of various diseases, in terms of prolactin secretion inhibitors, which are associated with the secretion of prolactin, such as pituitary tumor, diencephalon tumor, menstrual disorder, autoimmune diseases, prolactinoma, sterility, impotence, amenorrhea, lactorrhea, acromegaly, Chiari-Frommel syndrome, Argonz-del Castilo syndrome, Forbes-Albright syndrome, lymphoma, Sheehan's syndrome, spermatogenesis disorder, etc.
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- ATTENUATED FLAVIVRUS STRAINS CONTAINING A MUTATED M-ECTODOMAIN AND THEIR APPLICATIONS
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The present invention relates to nine residue peptides (ApoptoM) from flavivirus M ectodomain able to modulate specifically the apoptotic activity of diverse flavivirus, to pharmaceutical composition comprising the same and their use for the treatment and/or the prevention of flavivirus-linked infections and cancers.
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- Nucleic acid encoding bacillus stearothermophilus delta polymerase subunit
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The present invention relates to an isolated DNA molecule from a thermophilic bacterium which encodes a DNA polymerase III-type enzyme subunit. Also encompassed by the present invention are host cells and expression system including the heterologous DNA molecule of the present invention, as well as isolated replication enzyme subunits encoded by such DNA molecules. Also disclosed is a method of producing a recombinant thermostable DNA polymerase III-type enzyme, or subunit thereof, from a thermophilic bacterium, which is carried out by transforming a host cell with at least one heterologous DNA molecule of the present invention under conditions suitable for expression of the DNA polymerase III-type enzyme, or subunit thereof, and then isolating the DNA polymerase III-type enzyme, or subunit thereof.
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- Production of sulfated polysaccharides using glycosaminoglycan-specific sulfotransferases
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The present invention provides materials and methods for the production of bifunctional enzymes that catalyze the N-deacetylation and N-sulfation of saccharides. The invention also provides conditions and methods for assaying the activity of such enzymes.
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- Protein remodeling methods and proteins/peptides produced by the methods
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The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
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- Granulocyte colony stimulating factor: remodeling and glycoconjugation of G-CSF
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The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
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- Interferon alpha: remodeling and glycoconjugation of interferon alpha
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The invention includes a multitude of methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
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- Interferon beta: remodeling and glycoconjugation of interferon beta
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The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
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- Glycoconjugation methods and proteins/peptides produced by the methods
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The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
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- Non-naturally occurring lipoprotein particle
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Non-naturally occurring lipoprotein particles, process for preparing such particles and uses thereof.
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- Split- ubiquitin based reporter systems and methods of their use
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Methods and reagents for the detection and selection of two interacting-polypeptides, especially integral membrane proteins and transcription factors, by monitoring the reassembly of ubiquitin amino-terminal and carboxy-terminal chimeric polypeptide fragments are disclosed. Negative selection against an N-end rule-labilized marker released following ubiquitin reassembly allows direct selection of the interacting polypeptide pair. Methods to identify agonists and antagonists for certain protein-protein interactions; methods and reagents/kits for identifying proteins that binds a target protein are also provided. The dynamic and adaptable nature of the assay allows adaptation to a number of applications—such as probing the molecular environment of cellular membrane proteins in vivo.
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- Peptides of IL-2 and derivatives thereof and their use as therapeutic agents
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The present invention relates to new peptides of IL-2, derivatives thereof, and their use as therapeutic agents.
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- Primordial reductive amination revisited
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Amino acids are formed efficiently by reductive amination of α-keto acids under aqueous, conditions with freshly precipitated FeS or Fe(OH)2 and with NH3, CH3NH2 or (CH3)2NH at pH values near their pKa.
- Huber, Claudia,W?chtersh?user, Günter
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p. 1695 - 1697
(2007/10/03)
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