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1.A.30.4.2
SiiA/B (MotB/A) homologues of 236 and 362 aas with 1 and 4 putative TMSs, respectively.

Accession Number:Q30RB0
Protein Name:MotA/TolQ/ExbB proton channel
Length:362
Molecular Weight:40040.00
Species:Sulfurimonas denitrificans (strain ATCC 33889 / DSM 1251) [326298]
Number of TMSs:4
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate hydron

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MRRLKILKIY GVLWLFIFFI VYSNFSTLYE FFFTTITFNV AVLTTFTIGF VIIAKASLEL 
61:	VMLTGTFAVM RYKKGQSLEF YLKGIDKIFP ENIAQMFAKR ASHESVYFTH SEVKDVSVWL 
121:	EDKFTNQKSY ISFFISTCLM IGLLGTFAGL LMALNEMARI VLSLQGDVNI GDVMKRLNGP 
181:	ISGMSVGFGS SLFGVASAII LSVKGYILEK NQAMFTEDVS DWINSLVIES AVSSDDGVVT 
241:	SGGGSMSQIM ALFTEKISEF TQSMDKSNKS NETILKVLSQ SIDGESKAAK DEMAALENIS 
301:	NGIKDLNINQ YQSSSSLVDS IQDLSSATIN SGRSIKAMLE LQEKNNQLLS ELLNKLNTEP 
361:	KA