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2.A.63.2.1
The Na+:H+ antiporter, MrpA-G complex. Catalyzes Na+:H+ and Li+:H+ antiport. The MrpB subunit may have this transport activity by itself (Fukaya et al., 2009).

Accession Number:C7G3J6
Protein Name:Multiple resistance and pH regulation
Length:220
Molecular Weight:23598.00
Species:Aphanothece halophytica [72020]
Number of TMSs:6
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate lithium(1+), sodium(1+), hydron

Cross database links:

Pfam: PF04039   

References (1)

[1] “An Mrp-like cluster in the halotolerant cyanobacterium Aphanothece halophytica functions as a Na+/H+ antiporter.”  Fukaya F.et.al.   19700555

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FASTA formatted sequence
1:	MKWLYAVAGF ALFIKMLVLP NPIADWEELA VVETIVSESG VSNTVSGIIF RNRLYDTIFE 
61:	VVVFTIAILG GRFLLANEQP TTTVDQFTDH PSVVLARLGA TIAALVSIEL AIRGHLSPGG 
121:	GFAAGVAGGT AIGLIAITSK SQWMEVVYQR WKAATVEKVS VLIFIALAVV TLVGWELPQG 
181:	ELGTLVSGGF IPFLNILVAL KVALGSWAVI LLFIRYRGLL