273222-06-3Relevant articles and documents
Novel μ opioid antagonists derived from the μ opioid agonists endomorphin and [Dmt1]DALDA (H-Dmt-D-Arg-Phe-Lys-NH2)
Shi, Saijian,Xu, Jian,Feng, LingLing,Fan, Xin,Chen, Zhen,Qin, Yajuan,Chung, Nga N.,Li, Tingyou,Schiller, Peter W.
, p. 1305 - 1314 (2020/08/05)
Hybrid analogues of the μ opioid agonists endomorphin and [Dmt1]DALDA (H-Dmt-D-Arg-Phe-Lys-NH2, Dmt?=?2′,6′-dimethyltyrosine) containing cis-4-amino-Pro, trans-4-amino-Pro, cis-4-aminoethyl-Pro or cis-4-guanidinylethyl-Pro in the 2 p
Site-directed spin labeling of a collagen mimetic peptide
Jiang, Jianbing,Yang, Longfei,Jin, Qiaoying,Ma, Wude,Moroder, Luis,Dong, Shouliang
supporting information, p. 17679 - 17682 (2014/01/17)
At every turn: Electron paramagnetic resonance spectroscopy was used to investigate the dynamics of triple helix folding/unfolding of host-guest collagen mimetic peptide with a spin-labeled central triplet in Ac-(Gly-Pro-Hyp)7-Gly-Gly-NH2 (see figure). Copyright
Identification of novel low molecular weight CXCR4 antagonists by structural tuning of cyclic tetrapeptide scaffolds
Tamamura, Hirokazu,Araki, Takanobu,Ueda, Satoshi,Wang, Zixuan,Oishi, Shinya,Esaka, Ai,Trent, John O.,Nakashima, Hideki,Yamamoto, Naoki,Peiper, Stephen C.,Otaka, Akira,Fujii, Nobutaka
, p. 3280 - 3289 (2007/10/03)
A highly potent CXCR4 antagonist, compound 2, was previously found by using two orthogonal cyclic pentapeptide libraries involving conformation-based and sequence-based libraries based on the pharmacophore of a 14-mer peptidic antagonist, 1. Herein, cyclic tetrapeptides derived from replacements of the dipeptide unit (Nal-Gly) with a γ-amino acid and pseudopeptides cyclized by disulfide and olefin bridges were synthesized to find novel scaffold structures different from that of cyclic pentapeptides. These compounds contain a reduced number of peptide bonds compared to compound 2. Furthermore, several analogues with chemical modification of the side chain of Arg4 in 2 were also prepared. From these, several new leads possessing high to moderate CXCR4-antagonistic activity were characterized.
Two prolines with a difference: contrasting stereoelectronic effects of 4R/S-aminoproline on triplex stability in collagen peptides [pro(X)-pro(Y)-Gly]n.
Umashankara,Babu, I Ramesh,Ganesh, Krishna N
, p. 2606 - 2607 (2007/10/03)
4R/S-Aminoprolines when present in the X-position of collagen peptide [pro(X)-pro(Y)-Gly]n exhibit pH- and stereochemistry-dependent effects on triplex stability.