Protein K: a new major outer membrane protein found in encapsulated Escherichia coli.
AUTOR(ES)
Paakkanen, J
RESUMO
The protein composition of purified outer membranes of 47 Escherichia coli strains was examined by sodium dodecyl sulfate-polyacrylamide gradient gel electrophoresis. Of 33 encapsulated strains, all contained an outer membrane protein distinguishable from previously reported proteins. The 14 non-encapsulated strains with one exception lacked this protein. Because of its apparent association with encapsulation (K antigen) we have named it K protein. The protein was purified nearly to homogeneity by chromatography in the presence of detergents, and its composition was determined. Its amino acid composition does not differ significantly from that reported for protein I, another E. coli major outer membrane protein. Furthermore, the N-terminal amino acid sequence of protein K indicates that it is related to protein I.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=218029Documentos Relacionados
- Role of a major outer membrane protein in Escherichia coli.
- Expression of the major outer membrane protein of Chlamydia trachomatis in Escherichia coli.
- Cloned DNA fragment specifying major outer membrane protein a in Escherichia coli K-12.
- Genetic locus (ompB) affecting a major outer-membrane protein in Escherichia coli K-12.
- Isolation and partial characterization of protein E, a major protein found in certain Escherichia coli K-12 mutant strains: relationship to other outer membrane proteins.
