Amino acid sequence of guinea pig prostate kallikrein.
Amino acid sequence of guinea pig prostate kallikrein.
复制标题
豚鼠前列腺激肽释放酶的氨基酸序列。
DOI:
10.1021/bi00386a034
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发表时间:
1987
期刊:
影响因子:
2.9
通讯作者:
Bradshaw,RA
中科院分区:
文献类型:
--
作者:
Dunbar,JC;Bradshaw,RA
Joan C. Dunbar** and RalphA. Bradshaw* Department of Biological Chemistry, California College of Medicine, University of California, Irvine, California 92717 Received November 7, 1986; Revised Manuscript Received January 7, 1987 abstract: The primary structure of the major arginine esteropeptidase from guinea pig prostate has been deduced from automated Edman degradation of peptides generated by clostripain, cyanogen bromide, endoproteinase Lys-C, and Staphylococcus aureus V8 protease digestion of the protein. The esteropeptidase is a single polypeptide chain comprised of 239 amino acids and contains 2 apparent sites of carbohydrate attachment, Asn-78 and Asn-169. Both occur in consensus sequences for N-linked glycosylation sites. The esteropeptidase exhibits approximately 35% homology with trypsin including conservation of the catalytic residues and the aspartic acid which confers specificity toward basic aminoacids. The sequence identity, however, extends to greater than 60% with the kallikrein family of serine proteases. In addition to the overall homology, the guinea pig enzyme displays a number of features characteristic of kallikreins including 10 conserved half-cystine residues, a C-terminal proline, and the “kallikrein loop”. On the basis of this structural relatedness, the enzyme has been designated as guinea pig prostate kallikrein. In contrast to many of the kallikreins of other species and tissues, this enzyme does not contain any sites within the kallikrein loop sensitive to proteases that result in internal breaks in the polypeptide chain.(jTlandular kallikreins are a distinct subset of the serine protease family of esteropeptidases (Schachter, 1980). They preferentially hydrolyze syntheticsubstrates composed of esters fThis work was supported by USPHS Research Grants NS 19964 and DK32465 (formerly AM32465).* Correspondence should be addressed to this author.* Present address: Department of Molecular Biology and Genetics, Wayne State University School of Medicine, Detroit, MI 48207. and amides of arginine and, to a lesser extent, lysine (Fielder, 1979). In contrastto trypsin, kallikreins have very little general protease activity but rather display a high degree of substrate selectivity (Schachter, 1969). These enzymes were originally defined as kininogenases with the capacity, in vitro, to release kinin fromkininogen. However, the kininogenase activity varies considerably among members of the kallikrein family, and many esteropeptidases have now been identified as kal-
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影响因子:
21.1
作者:
M. Schachter
通讯作者:
M. Schachter
影响因子:
64.8
作者:
C. Lazure;R. Leduc;N. Seidah;G. Thibault;J. Genest;M. Chrétien
通讯作者:
M. Chrétien
DOI:
--
发表时间:
1977
期刊:
影响因子:
--
作者:
E. Berger;E. Shooter
通讯作者:
E. Shooter
影响因子:
4.8
作者:
R. Richards;D. Catanzaro;A. Mason;B. Morris;J. Baxter;J. Shine
通讯作者:
J. Shine
DOI:
--
发表时间:
1983
期刊:
Cold Spring Harbor Symposia on Quantitative Biology
影响因子:
--
作者:
J. Shine;A. Mason;B. A. Evans;R. Richards
通讯作者:
R. Richards