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3.A.2.1.12
F-type ATPase lacking a δ-subunit, but having another subunit, AtpR of 104 aas and 3 TMSs that may replace the δ-subunit.  Has a c-subunit that shows the expected residues that comprise a Na+ binding site, so it may be a Na+ exporting ATPase.  It is in a family of similar ATPases that all lack δ-subunits and have been called N-ATPases (Na+-transporting) (Dibrova et al. 2010). They appear to be subject to horizontal transfer and represent a second type of F-type ATPase, the other transporting protons. They are found in a variety of bacteria and archaea (Dibrova et al. 2010). The AtpQ protein may be a Mg2+ channel.

Accession Number:Q467E9
Protein Name:H(+)-transporting ATP synthase, subunit beta
Length:474
Molecular Weight:52478.00
Species:Methanosarcina barkeri (strain Fusaro / DSM 804) [269797]
Substrate

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  • 2° Structure (Network Protein Sequence Analysis)

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MVDRSRPLNL GKVISVRGSI VDVLFERHLP PVYTLLRAGR LRAGRESQIA IEVLTQLDAH 
61:	HVRGIALTPT EGLARGMAVE DTGGPLKAPV GREILSRMFD VFGNTIDRRK PPSDIQWRSI 
121:	HQAPPPLMRR STTSEIFETG IKAIDVLVPL ERGGKAGLFG GAGVGKTVLL TEMIHNVVKQ 
181:	HQGVSIFCGI GERCREGEEL YRDMKDAGVL PHTVMVFGQM NEPPGARFRV GHTALTMAEY 
241:	FRDDERRDVL LLIDNIFRFI QAGSEVSGLM GQMPSRLGYQ PTLGTELSEL EERISTTDAG 
301:	AIMSIQAVYV PADDFTDPSA VHTFSHLSAS IVLSRKRASE GLYPAIDPLQ SNSKMATPGI 
361:	IGERHYHLAQ KIRQTLAQYS ELKDIISMLG LEQLSPEDRN VVARARRLER FLTQPFFTTE 
421:	QFTGIKGKTV SLSDALDGCD RILHDEFKDY SEGDLYMIGT IDEAIAKKSS REKS