The Enzyme Database

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EC 7.3.2.3     
Accepted name: ABC-type sulfate transporter
Reaction: ATP + H2O + sulfate-[sulfate-binding protein][side 1] = ADP + phosphate + sulfate[side 2] + [sulfate-binding protein][side 1]
Other name(s): sulfate ABC transporter; sulfate-transporting ATPase (ambiguous)
Systematic name: ATP phosphohydrolase (ABC-type, sulfate-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. The enzyme from Escherichia coli can interact with either of two periplasmic binding proteins and mediates the high affinity uptake of sulfate and thiosulfate. May also be involved in the uptake of selenite, selenate and possibly molybdate. Does not undergo phosphorylation during the transport.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Sirko, A., Zatyka, M., Sadowy, E. and Hulanicka, D. Sulfate and thiosulfate transport in Escherichia coli K-12: evidence for a functional overlapping of sulfate- and thiosulfate-binding proteins. J. Bacteriol. 177 (1995) 4134–4136. [DOI] [PMID: 7608089]
2.  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]
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 7.3.2.3 created 2000 as EC 3.6.3.25, transferred 2018 to EC 7.3.2.3]
 
 


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