Identification of proxenin as a precursor of the peptide xenin with sequence homology to yeast and mammalian coat protein alpha - Research portal of Justus Liebig University Giessen:

Journal article

Identification of proxenin as a precursor of the peptide xenin with sequence homology to yeast and mammalian coat protein alpha

Authors list: Hamscher, G; Meyer, HE; Feurle, GE

Publication year: 1996

Pages: 889-893

Journal: Peptides

Volume number: 17

Issue number: 6

ISSN: 0196-9781

DOI Link: https://doi.org/10.1016/0196-9781(96)00150-7

Publisher: Elsevier

Abstract:
Proxenin, a precursor of the bioactive peptide xenin, was isolated from canine pancreas by HPLC and identified by mass spectrometry and sequence analysis as a pentatriacontapeptide with a molecular weight of 4035: Met-Leu-Thr-Lys-Phe-Glu-Thr-Lys-Ser-Ala-Arg-Val-Lys-Gly-Leu-Ser-Phe-His-Pro-Lys-Arg-Pro-Trp-Ile-Leu-Thr-Ser-Leu-His-Asn-Gly-Val-Ile-Gln-Leu-OH. Treatment with pepsin cleaved off 10 C-terminal amino acids and released xenin. Data base search showed amino acid sequence homology of xenin and proxenin with the sequence of coat protein a of yeast (62%) and humans (100%). Concentration of the coatomer complex from rabbit liver led to an equimolar enrichment of extractable proxenin. We conclude, therefore, that xenin and proxenin are peptide sequences highly conserved during evolution within the ru-subunit of the coatomer.

Authors/Editors

- Uni.-Prof. Dr. Gerd Hamscher

Citation Styles

Harvard Citation style: Hamscher, G., Meyer, H. and Feurle, G. (1996) Identification of proxenin as a precursor of the peptide xenin with sequence homology to yeast and mammalian coat protein alpha, Peptides, 17(6), pp. 889-893. https://doi.org/10.1016/0196-9781(96)00150-7

APA Citation style: Hamscher, G., Meyer, H., & Feurle, G. (1996). Identification of proxenin as a precursor of the peptide xenin with sequence homology to yeast and mammalian coat protein alpha. Peptides. 17(6), 889-893. https://doi.org/10.1016/0196-9781(96)00150-7