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2.A.7.3.82
Riboflavin (RF) uptake porter, ImpX, of 302 aas and 10 TMSs.  Functional complementation, growth inhibition experiments, direct uptake experiments and inhibition studies, suggesting a high degree of specificity for RF uptake (Rodionova et al. 2019). The EC50 for growth with RF was estimated to be in the range 0.5-1 µM, estimated from the half-maximal RF concentration supporting the growth of a RF auxotrophic Escherichia coli strain, but the Khalf for RF uptake was 20 µM. Transport experiments suggested that the energy source is the proton motive force, but that NaCl stimulates uptake (Rodionova et al. 2019).

Accession Number:M4VA25
Protein Name:Uncharacterized protein
Length:302
Molecular Weight:33359.00
Species:Bdellovibrio exovorus JSS [1184267]
Number of TMSs:10
Substrate

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FASTA formatted sequence
1:	MGFIFIILGT LMWSFDTLIR YPLLASLRPD TMVFLEHALL TIIFVPLLFK TKSFFRQMNV 
61:	RHLTSFLVIG VMGSAVSTLA FTQAFALINP SLVILLQKLQ PIVVILLSVF ILKEKFSRRF 
121:	FALSALALIG VFLISYPDIS PLWMTTNSPI FQTGSHALLG YGLTLLAVIG WGASTVFGKK 
181:	LSTEGFNENE IMAGRFSLGF LFLLVFCLSQ SSLPTTEISY DVYLKVAAMV LLSGLLGMSL 
241:	YYRGLSRLPA HISAIAEMFF PLSAVMINWI FLGKALLPIQ IAGAIVLTAS SIGIQLSRRH 
301:	TN