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1.A.30.1.7
The motor complex of the bacterial flagellum, MotAB. MotA is 295 aas long with about 5 putative TMSs in a 2 + 1 + 2 TMS arrangement, possibly with a C-terminal additional TMS.  MotB is 309 aas long with a single N-terminal TMS.  They comprise the stator element of the flagellar motor complex and are required for rotation of the flagellar motor. Together they form the transmembrane proton channel. These two proteins are 94 and 91% identical to the E. coli complex (TC# 1.A.30.1.1) (Morimoto and Minamino 2014).

Accession Number:P55892
Protein Name:Motility protein B
Length:309
Molecular Weight:34159.00
Species:Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720) [99287]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Cell inner membrane1 / Single-pass type II membrane protein2
Substrate

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FASTA formatted sequence
1:	MKNQAHPIVV VKRRRHKPHG GGAHGSWKIA YADFMTAMMA FFLVMWLISI SSPKELIQIA 
61:	EYFRTPLATA VTGGNRIANS ESPIPGGGDD YTQQQGEVEK QPNIDELKKR MEQSRLNKLR 
121:	GDLDQLIESD PKLRALRPHL KIDLVQEGLR IQIIDSQNRP MFKTGSAEVE PYMRDILRAI 
181:	APVLNGIPNR ISLAGHTDDF PYANGEKGYS NWELSADRAN ASRRELVAGG LDNGKVLRVV 
241:	GMAATMRLSD RGPDDAINRR ISLLVLNKQA EQAILHENAE SQNEPVSVLQ QPAAAPPASV 
301:	PTSPKAEPR