The Enzyme Database

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EC 3.6.3.21     
Accepted name: polar-amino-acid-transporting ATPase
Reaction: ATP + H2O + polar amino acidout = ADP + phosphate + polar amino acidin
Other name(s): histidine permease
Systematic name: ATP phosphohydrolase (polar-amino-acid-importing)
Comments: ABC-type (ATP-binding cassette-type) ATPase, characterized by the presence of two similar ATP-binding domains. Does not undergo phosphorylation during the transport process. Comprises bacterial enzymes that import His, Arg, Lys, Glu, Gln, Asp, ornithine, octopine and nopaline.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Kuan, G., Dassa, E., Saurin, N., Hofnung, M. and Saier, M.H., Jr. Phylogenetic analyses of the ATP-binding constituents of bacterial extracytoplasmic receptor-dependent ABC-type nutrient uptake permeases. Res. Microbiol. 146 (1995) 271–278. [PMID: 7569321]
2.  Saier, M.H., Jr. Molecular phylogeny as a basis for the classification of transport proteins from bacteria, archaea and eukarya. Adv. Microb. Physiol. 40 (1998) 81–136. [PMID: 9889977]
3.  Nikaido, K., Liu, P.Q. and Ferro-Luzzi Ames, G. Purification and characterization of HisP, the ATP-binding subunit of a traffic ATPase (ABC transporter), the histidine permease of Salmonella typhimurium. Solubilization, dimerization , and ATPase activity. J. Biol. Chem. 272 (1997) 27745–27752. [PMID: 9346917]
4.  Walshaw, D.L., Lowthorpe, S., East, A. and Poole, P.S. Distribution of a sub-class of bacterial ABC polar amino acid transporter and identification of an N-terminal region involved in solute specificity. FEBS Lett. 414 (1997) 397–401. [PMID: 9315727]
[EC 3.6.3.21 created 2000]
 
 


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