HMM Summary Page: TIGR01352

FunctionTonB family C-terminal domain
Trusted Cutoff27.10
Domain Trusted Cutoff27.10
Noise Cutoff25.00
Domain Noise Cutoff25.00
Isology Typesubfamily_domain
HMM Length76
Mainrole CategoryTransport and binding proteins
Subrole CategoryCations and iron carrying compounds
Gene Ontology TermGO:0006810: transport biological_process
GO:0015570: energizer of outer membrane receptor-mediated transport activity molecular_function
AuthorHaft DH
Entry DateOct 3 2001 1:53PM
Last ModifiedFeb 14 2011 3:27PM
CommentThis HMM represents the C-terminal of TonB and is homologs. TonB is an energy-transducer for TonB-dependent receptors of Gram-negative bacteria. Most members are designated as TonB or TonB-related proteins, but a few represent the paralogous TolA protein. Several bacteria have up to four TonB paralogs. In nearly every case, a proline-rich repetive region is found N-terminal to this domain; these low-complexity regions are highly divergent and cannot readily be aligned. The region is suggested to help span the periplasm.
Genome PropertyGenProp0543: TonB-dependent transport (HMM-CLUST)