The Enzyme Database

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EC 7.6.2.3     
Accepted name: ABC-type glutathione-S-conjugate transporter
Reaction: ATP + H2O + glutathione-S-conjugate[side 1] = ADP + phosphate + glutathione-S-conjugate[side 2]
Other name(s): multidrug resistance-associated protein 1; glutathione-S-conjugate-translocating ATPase; MRP; MRP1; ABCC1 (gene name); YBT1 (gene name); YCF1 (gene name)
Systematic name: ATP phosphohydrolase (ABC-type, glutathione-S-conjugate-exporting)
Comments: A eukaryotic ATP-binding cassette (ABC) type transporter that mediates the transport of glutathione-S-conjugates. The mammalian enzyme, which also transports some glucuronides, exports the substrates out of the cell, while plant and fungal transporters export them into the vacuole. Over-expression confers resistance to anticancer drugs by their efficient exportation in glutathione-S-conjugate form.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Zaman, G.J., Flens, M.J., van Leusden, M.R., de Haas, M., Mulder, H.S., Lankelma, J., Pinedo, H.M., Scheper, R.J., Baas, F., Broxterman, H.J. and et al. The human multidrug resistance-associated protein MRP is a plasma membrane drug-efflux pump. Proc. Natl. Acad. Sci. USA 91 (1994) 8822–8826. [PMID: 7916458]
2.  Lautier, D., Canitrot, Y., Deeley, R.G. and Cole, S.P. Multidrug resistance mediated by the multidrug resistance protein (MRP) gene. Biochem. Pharmacol. 52 (1996) 967–977. [PMID: 8831715]
3.  Li, Z.S., Szczypka, M., Lu, Y.P., Thiele, D.J. and Rea, P.A. The yeast cadmium factor protein (YCF1) is a vacuolar glutathione S-conjugate pump. J. Biol. Chem. 271 (1996) 6509–6517. [DOI] [PMID: 8626454]
4.  Lu, Y.P., Li, Z.S. and Rea, P.A. AtMRP1 gene of Arabidopsis encodes a glutathione S-conjugate pump: isolation and functional definition of a plant ATP-binding cassette transporter gene. Proc. Natl. Acad. Sci. USA 94 (1997) 8243–8248. [PMID: 9223346]
5.  Cole, S.P. Multidrug resistance protein 1 (MRP1, ABCC1), a "multitasking" ATP-binding cassette (ABC) transporter. J. Biol. Chem. 289 (2014) 30880–30888. [PMID: 25281745]
6.  Cordente, A.G., Capone, D.L. and Curtin, C.D. Unravelling glutathione conjugate catabolism in Saccharomyces cerevisiae: the role of glutathione/dipeptide transporters and vacuolar function in the release of volatile sulfur compounds 3-mercaptohexan-1-ol and 4-mercapto-4-methylpentan-2-one. Appl. Microbiol. Biotechnol. 99 (2015) 9709–9722. [PMID: 26227410]
[EC 7.6.2.3 created 2018]
 
 


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