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3.A.1.25.7
The riboflavin uptake system, BioMNY.  BioM, EtcA, ATPase, 234 aas;  BioN, EtcT, 190 aas, 5 TMSs; BioY, EtcS, 210 aas, 5 TMSs BioY can also function as a secondary carrier and is therefore listed separately under TC# 2.A.88.1.3.  ATP-dependent conformational changes drive substrate capture and release when BioMNY are together in a complex (Finkenwirth et al. 2015).

Accession Number:D5ARG9
Protein Name:Energy-coupling factor transporter transmembrane protein BioN
Length:210
Molecular Weight:22327.00
Species:Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003) [272942]
Number of TMSs:3
Location1 / Topology2 / Orientation3: Cell inner membrane1 / Multi-pass membrane protein2
Substrate riboflavin

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FASTA formatted sequence
1:	MLSLALPCRS WAHRLPAALK FGLLAVAMIA LMRIGSLAGQ GAAVLVVAAL TASLGRKAIR 
61:	QSLVTLRPLV WIVAVILIWD SLQGAVAQGV LFGLRVLAMV GLANAVTLTT PLPEIVALIE 
121:	RLAQPLARFG ISPRIPAISV ALVIRFVPVL RARHDTLAEA WRARSARKPR GKLLAPLTFS 
181:	LLDDADHMAD ALRARGGLAL PRKGRDTVGT