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Protein Sci. 2004 Apr;13(4):937-45.

Experimentally based topology models for E. coli inner membrane proteins.

Author information

1
Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden.

Abstract

Membrane protein topology predictions can be markedly improved by the inclusion of even very limited experimental information. We have recently introduced an approach for the production of reliable topology models based on a combination of experimental determination of the location (cytoplasmic or periplasmic) of a protein's C terminus and topology prediction. Here, we show that determination of the location of a protein's C terminus, rather than some internal loop, is the best strategy for large-scale topology mapping studies. We further report experimentally based topology models for 31 Escherichia coli inner membrane proteins, using methodology suitable for genome-scale studies.

PMID:
15044727
PMCID:
PMC2280059
DOI:
10.1110/ps.03553804
[Indexed for MEDLINE]
Free PMC Article

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