1233057
doi
10.1038/325542a0
oai:zenodo.org:1233057
Brownstein, Michael J.
Use of a cDNA clone to identify a supposed precursor protein containing valosin
Koller, Kerry J.
info:eu-repo/semantics/openAccess
Creative Commons Zero v1.0 Universal
https://creativecommons.org/publicdomain/zero/1.0/legalcode
Valosin, a novel 25-amino-acid peptide isolated recently from pig intestine1, has several effects on the digestive system of dogs2. We report here that the valosin-specific complementary DNA clone from pigs codes for a polypeptide unlike most precursors of biologically active peptides. The predicted protein lacks a characteristic amino-terminal hydrophobic signal sequence and contains no processing signals of the type acted upon by endopeptidases to generate other active peptides from precursors. Antibodies to synthetic valosin have been used to show that nearly all valosin immunoreactivity is in the cytoplasm and that the protein detected (valosin-containing protein, VCP), although smaller than the predicted product of the cDNA sequence, is much larger than valosin. Valosin-specific messenger RNA is found in extracts from many pig tissues, which contrasts with the restricted occurrence expected of a biologically active peptide. We conclude that valosin is an artefact of the purification procedure and does not occur in vivo.
Zenodo
1987-02-05
info:eu-repo/semantics/article
1233056
1579538760.514329
487789
md5:3d58c6b0994ec19ebf3fb4dbdae2e648
https://zenodo.org/records/1233057/files/article.pdf
public