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3.A.1.115.2
Putative Na extrusion pump, NatAB.  NatB has an N-terminal NatB domain (residues 1 - 375) as well as a C-terminal CAAX protease domain (9.B.2; residues 380 - 650).

Accession Number:Q7UQ82
Protein Name:Probable sodium extrusion protein NatB
Length:701
Molecular Weight:76355.00
Species:Rhodopirellula baltica (strain SH1) [243090]
Number of TMSs:12
Substrate sodium atom

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MKLSWSRLGR LTQKELRETL RDRRTMLTLV MMPLLVYPLL SMALNRFLLS SGMPAEQAFM 
61:	VGVSSPDERD FLQTLIEDPR SAPPEPILKV NGGQLARFEV VVPEEISPEE ALSQNLLDIA 
121:	VQFQDGPNSI RSMEIVSYNN DQGSSTAQRI LTERLQWLQL SESLRIAQQI DPDYQPIDLR 
181:	IRSIGEKASG SILGTVIPLV LVLMTITGAV YPAIDLTAGE RERGTMEALM ASPVPRWWVL 
241:	LAKYLAVVFV AFLTAMANLL AMFVTMKVTG LVSMLAGDST VGMLQIMQIL GLLLLFSCFF 
301:	SALLLSLTSF AKSFKEAQAY LIPVMLLSLG PAMLSLMPGV TLEGPLAVAP LLNIVLLARD 
361:	ILSGTATTAG AVVAVTSTLF YAAATLGVAA RLFGSDAVER TSQKSFGSLL QRPDTVTQHP 
421:	SMSQAGLVVA LLLPASFLIS NGLMQWLRIV SDSVSVSSQL LLNALSLILV FGLIPLCATV 
481:	MGRHRIQSTY RFSLPPFASI LGAIVLAGGA WAFAHEALAL ADQFGIALLS DDQIERTRSL 
541:	LDKWKTVPPW LLLLTMAATP ALIEELCFRG YLFSAFSAVL RPWQTICTTA LLFGLFHVFV 
601:	GSTLLVERFL PTMLLGLLLG WVAYRTGSVW PGVVLHFFHN GMLELAARYH DKLDFLGLSD 
661:	ADGSKHLPAS WLVAAALMVM IGIAIVAWST QSRTEQDSPQ S