HMM Summary Page: TIGR00974

Functionphosphate ABC transporter, permease protein PstA
Gene SymbolpstA
Trusted Cutoff193.45
Domain Trusted Cutoff193.45
Noise Cutoff161.90
Domain Noise Cutoff161.90
Isology Typeequivalog
HMM Length272
Mainrole CategoryTransport and binding proteins
Subrole CategoryAnions
Gene Ontology TermGO:0005887: integral to plasma membrane cellular_component
GO:0006817: phosphate ion transport biological_process
GO:0015415: phosphate ion transmembrane-transporting ATPase activity molecular_function
GO:0055052: ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing cellular_component
AuthorHaft DH, Loftus BJ
Entry DateSep 29 2000 11:42AM
Last ModifiedFeb 14 2011 3:27PM
CommentThis HMM describes PtsA, one of a pair of permease proteins in the ABC (high affinity) phosphate transporter. In a number of species, this permease is fused with the PtsC protein (TIGR02138). In the model bacterium Escherichia coli, this transport system is induced when the concentration of extrallular inorganic phosphate is low. A constitutive, lower affinity transporter operates otherwise.
Genome PropertyGenProp0190: phosphate ABC transporter (pstSCAB-phoU) (HMM)