Retinol binding protein 4
Protein-coding gene in the species Homo sapiens / From Wikipedia, the free encyclopedia
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Retinol binding protein 4, also known as RBP4, is a transporter protein[5] for retinol (vitamin A alcohol). RBP4 has a molecular weight of approximately 21 kDa and is encoded by the RBP4 gene in humans.[6][7] It is mainly, though not exclusively, synthesized in the liver and circulates in the bloodstream as a hepatokine bound to retinol in a complex with transthyretin. RBP4 has been a drug target for ophthalmology research due to its role in vision.[8] RBP4 may also be involved in metabolic diseases as suggested by recent studies.
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