Logo image
An integral membrane component of coatomer-coated transport vesicles defines a family of proteins involved in budding
Journal article   Open access   Peer reviewed

An integral membrane component of coatomer-coated transport vesicles defines a family of proteins involved in budding

Mark A Stamnes, Mark W Craighead, Mee H Hoe, Nina Lampen, Scott Geromanos, Paul Tempst and James E Rothman
Proceedings of the National Academy of Sciences - PNAS, Vol.92(17), pp.8011-8015
08/15/1995
DOI: 10.1073/pnas.92.17.8011
PMCID: PMC41276
PMID: 7644530
url
https://europepmc.org/articles/pmc41276View
Published (Version of record) Open Access

Abstract

We have isolated a major integral membrane protein from Golgi-derived coatomer-coated vesicles. This 24-kDa protein, p24, defines a family of integral membrane proteins with homologs present in yeast and humans. In addition to sequence similarity, all p24 family members contain a motif with the characteristic heptad repeats found in coiled coils. When the yeast p24 isoform, yp24A, is knocked out in a strain defective for vesicle fusion, a dramatic reduction in the accumulation of transport vesicles is observed. Together, these results indicate a role for this protein family in the budding of coatamer-coated and other species of coated vesicles.

Details

Logo image