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3.A.1.6.8
Molybdate/tungstate transport system, ModABC (WtpABC) (ModA binds to ModBC with high affinity (0.11%u03BCM) and dissociates slowly; the complex is destabilized by nucleotide and substrate binding (Vigonsky et al. 2013).

Accession Number:O30143
Protein Name:Molybdate/tungstate transport system permease protein WtpB
Length:261
Molecular Weight:27833.00
Species:Archaeoglobus fulgidus (strain ATCC 49558 / VC-16 / DSM 4304 / JCM 9628 / NBRC 100126) [224325]
Number of TMSs:6
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate molybdate, tungstate

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Structure:
2ONK     

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MRLLFSALLA LLSSIILLFV LLPVAATVTL QLFNFDEFLK AASDPAVWKV VLTTYYAALI 
61:	STLIAVIFGT PLAYILARKS FPGKSVVEGI VDLPVVIPHT VAGIALLVVF GSSGLIGSFS 
121:	PLKFVDALPG IVVAMLFVSV PIYINQAKEG FASVDVRLEH VARTLGSSPL RVFFTVSLPL 
181:	SVRHIVAGAI MSWARGISEF GAVVVIAYYP MIAPTLIYER YLSEGLSAAM PVAAILILLS 
241:	LAVFVALRII VGREDVSEGQ G