GPR172B Antibody – Rabbit Polyclonal

Biological redox reactions require electron donors and acceptor. Vitamin B2 is the source for the flavin in flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN) which are common redox reagents. This gene encodes a member of the riboflavin (vitamin B2) transporter family. Haploinsufficiency of this protein can cause maternal riboflavin deficiency. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Jan 2013]

GPR172B: Riboflavin transporter. Riboflavin transport is Na(+)- independent but moderately pH-sensitive. Activity is strongly inhibited by riboflavin analogs, such as lumiflavin. Weakly inhibited by flavin adenine dinucleotide (FAD). In case of infection by retroviruses, acts as a cell receptor to retroviral envelopes similar to the porcine endogenous retrovirus (PERV-A). Haploinsufficiency in SLC52A1 can cause maternal riboflavin deficiency. In the newborn infant, this can lead to a transient riboflavin-responsive disorder with clinical and biochemical features of multiple acyl-CoA dehydrogenase deficiency. Belongs to the riboflavin transporter family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral; Membrane protein, multi-pass

Chromosomal Location of Human Ortholog: 17p13.2

Cellular Component: integral to plasma membrane

Molecular Function: riboflavin transporter activity; viral receptor activity

Biological Process: entry of virus into host cell; riboflavin transport

Disease: Riboflavin Deficiency