The Enzyme Database

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EC 7.6.2.9     
Accepted name: ABC-type quaternary amine transporter
Reaction: ATP + H2O + quaternary amine-[quaternary amine-binding protein][side 1] = ADP + phosphate + quaternary amine[side 2] + [quaternary amine-binding protein][side 1]
Other name(s): glycine betaine ABC transporter; ProVWX; quaternary-amine ABC transporter; quaternary-amine-transporting ATPase (ambiguous)
Systematic name: ATP phosphohydrolase (ABC-type, quaternary-amine-importing)
Comments: An ATP-binding cassette (ABC) type transporter, characterized by the presence of two similar ATP-binding domains/proteins and two integral membrane domains/proteins. Does not undergo phosphorylation during the transport process. A bacterial enzyme that interacts with an extracytoplasmic substrate binding protein and mediates the high affinity uptake of quaternary amine derivatives.
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. [DOI] [PMID: 7569321]
2.  Kempf, B., Gade, J. and Bremer, E. Lipoprotein from the osmoregulated ABC transport system OpuA of Bacillus subtilis: purification of the glycine betaine binding protein and characterization of a functional lipidless mutant. J. Bacteriol. 179 (1997) 6213–6220. [DOI] [PMID: 9335265]
3.  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]
[EC 7.6.2.9 created 2000 as EC 3.6.3.32, transferred 2018 to EC 7.6.2.9]
 
 


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