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3.A.1.25.1
The biotin uptake porter (binding receptor lacking) (see also the VUT or ECF family; BioY; 2.A.88.1.1) (Rodionov et al., 2006; Hebbeln et al., 2007). BioN (the EcfT component of the biotin transporter) appears to be required for intramolecular signaling and subunit assembly (Neubauer et al., 2009). The Ala-Arg-Ser and Ala-Arg-Gly signatures in BioN are coupling sites to the BioM ATPases (Neubauer et al., 2011).  Subunit stoicheometries have been estimated with the prediction that there are oligomeric forms of BioM and BioY in the BioMNY complex (Finkenwirth et al. 2010).

Accession Number:Q6GUB1
Protein Name:Permease protein BioN
Length:202
Molecular Weight:21997.00
Species:Rhizobium etli [29449]
Number of TMSs:4
Substrate Biotin

Cross database links:

Pfam: PF02361   

Gene Ontology

GO:0015087 F:cobalt ion transmembrane transporter activity
GO:0009236 P:cobalamin biosynthetic process

References (1)

[1] “The Rhizobium etli bioMNY operon is involved in biotin transport.”  Guillen-Navarro K.et.al.   16099603

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FASTA formatted sequence
1:	MQSLYVEGNS RMHRLSPRAK LLSLTAFAIL LFISHNLLLL SGAVLVAAVL YGTVGLPIGE 
61:	ALLRLRPIFL TIAVVALFNL IFNPWQAALV PVLRLTALML LAASVTATTT ITEFIDEVTA 
121:	LARPLERTGR VQADDIGLAL GLVLRFVPEI VNRYQAIREA HKARGLKVRP TSLLAPLIIL 
181:	TLKDADNVAA AIDARRIRRH GS