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2.A.19.5.2
Cation (Ca2+/Na+):proton antiporter, ChaA or CaxA (confers both Na+ and Ca2+ resistance) (Wei et al., 2007)

Accession Number:Q0ZAI3
Protein Name:ChaA
Length:319
Molecular Weight:33652.00
Species:Alkalimonas amylolytica [152573]
Number of TMSs:10
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate calcium(2+), sodium(1+), hydron

Cross database links:

Pfam: PF01699   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0055085 P:transmembrane transport

References (1)

[1] “Three putative cation/proton antiporters from the soda lake alkaliphile Alkalimonas amylolytica N10 complement an alkali-sensitive Escherichia coli mutant.”  Wei Y.et.al.   17600061

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence 
1:	MLVATIFVLV GLVLLIWSAD RFVYGASSIA RNLNISPMII GLTIVAMGSS APEIMVSATA 
61:	AWQGRLDTAV GNALGSNITN ILLVIGATAL LKPIAVASMT IKREFPLLIL VTLLGYLFLA 
121:	DQSLTRAEGA LFLGGFVLFL VLMVYWGKHA PPDDPLLTEY QAELPPPTPT WQATVWLVLG 
181:	LALLLASSQL LVHGAVTIAS HFGMSDLLIG LTIIAIGTSL PELAASLIGI LKGEDDLALG 
241:	NIIGSNIFNI LAVLGVGTII APGVIDAAAA GRDSYVMMAA TLALLLMSLR LGKLRRINRV 
301:	EGCILLMAFI GYQYLLFSS