Ontology highlight
ABSTRACT:
SUBMITTER: Lerch-Bader M
PROVIDER: S-EPMC2393759 | biostudies-literature | 2008 Mar
REPOSITORIES: biostudies-literature
Lerch-Bader Mirjam M Lundin Carolina C Kim Hyun H Nilsson Ingmarie I von Heijne Gunnar G
Proceedings of the National Academy of Sciences of the United States of America 20080307 11
Positively charged residues located near the cytoplasmic end of hydrophobic segments in membrane proteins promote membrane insertion and formation of transmembrane alpha-helices. A quantitative understanding of this effect has been lacking, however. Here, using an in vitro transcription-translation system to study the insertion of model hydrophobic segments into dog pancreatic rough microsomes, we show that a single Lys or Arg residue typically contributes approximately -0.5 kcal/mol to the appa ...[more]