3061-96-9Relevant academic research and scientific papers
Recombinant ribonuclease proteins
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, (2008/06/13)
PCT No. PCT/US97/02588 Sec. 371 Date Feb. 19, 1998 Sec. 102(e) Date Feb. 19, 1998 PCT Filed Feb. 19, 1997 PCT Pub. No. WO97/31116 PCT Pub. Date Aug. 28, 1997The invention relates to ribonucleases derived from a native ribonuclease found in the oocytes of Rana pipiens. Various humanized and recombinant forms of these molecules are described as well as uses for them.
ISOLATION AND CHARACTERIZATION OF AN L-AMINO ACID ACYLASE FROM Aspergillus oryzae
Malinka, M. K.,Stepanov, V. M.,Lobareva, L. S.
, p. 341 - 349 (2007/10/02)
A scheme of isolating a highly purified L-amino acylase from Aspergillus oryzae is described which excludes extraction of the enzyme from the preparation "Amilorizin", fractionation with ethanol, chromatography on DEAE-cellulose, and gel filtration through Sephadex G-200 and Bio-Gel P-300.The enzyme, as purified 1240-fold, has a molecular weight of 118,000, apparently consists of two subunits with a molecular weight of 60,000, is stable in the pH range of 7-10 and has an optimum pH of 8.9 and pI of 4.0.Its amino acid composition has been determined and its substrate specificity has been studied.The acylase is a metalloenzyme: Co2+ ions in concentrations of 10-4-5.10-5 M increase the rate of hydrolysis of N-acetyl-L-amino acids three- to fourfold.It shows differences in its molecular and functional properties from acylase I obtained from porcine kidney.
