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Maier, K.L. ; Müller, H.R.* ; Tesch, R.* ; Witt, I.* ; Holzer, H.

Amino acid sequence of yeast proteinase B inhibitor 1 comparison with inhibitor 2.

Biochem. Biophys. Res. Commun. 91, 1390-1398 (1979)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The amino acid sequence of proteinase B inhibitor 1 (IB1) from bakers' yeast has been established by automated Edman degradation up to position 42. A comparison with the sequence of proteinase B inhibitor 2 (IB2) revealed two differences: LEU-32 and GLU-34 in IB2 are replaced by VAL-32 and LYS-34 in IB1. Identity of the COOH-terminal region of IB1 with that of IB2 was proved by degradation with the carboxypeptidases A and Y. Furthermore, a chymotryptic peptide was isolated from each of the 74 residues containing inhibitors. The two fragments, ranging from position 42 to the COOH termini of the inhibitors, were found to be identical with respect to electrophoretical mobility, end groups, amino acid composition and peptide pattern after tryptic digestion. It is concluded, that the two inhibitor sequences are identical beyond position 42. IB1 and IB2 are isoinhibitors, because they are coded by different genes.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
ISSN (print) / ISBN 0006-291X
e-ISSN 1090-2104
Zeitschrift Biochemical and Biophysical Research Communications
Quellenangaben Band: 91, Heft: 4, Seiten: 1390-1398 Artikelnummer: , Supplement: ,
Verlag Elsevier
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institut für Toxikologie und Biochemie