Protein
Urocanate reductase
Organism
Lactobacillus plantarum (strain ATCC BAA-793 / NCIMB 8826 / WCFS1)
Function
Catalyzes the two-electron reduction of urocanate to imidazole propionate (also named deamino-histidine or dihydrourocanate). Imidazole propionate is present at higher concentrations in subjects with type 2 diabetes, and directly impairs glucose tolerance and insulin signaling at the level of insulin receptor substrate (IRS) through activation of p38 gamma (MAPK12)-p62-mTORC1. Therefore, the UrdA enzyme from the gut bacteria L.plantarum strain WCFS1, may contribute to the pathogenesis of type 2 diabetes by producing the microbial metabolite imidazole propionate.
Similarity
Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily.
Sequence
MKFVGIVGTNAQHSYNRMLLEFMQRHFATQAEIEILELTDVPMFDESNDQTDSTIIQNFATKIATADGVIIASPEHNHSVPSALKSIIEWLSFKIHPLDGQAVMIVGASYSVQGSSRAQLHLRQILDAPGVNASVMPGSEFLLGRAQTAFDDQGNLKVQGTVDFLDSCFAKFQKFATIVAEMRAPEALSFAPGTYQVTATGHNGELPMRVTLSADRIENIEIDTSSETQGIADVAFERIPKEIIAGQTLAVDAISGASITSHGVIDGVARAVKEAGANPDDLKKRRATKQVAQPAVKEVTTDVVVVGAGGAGMTAAAKVLQAGHQAVVLEKFPAVGGNTVRAGGPMNAADPDWQRQFAALPGEKQTLKDLSERDESTIAPEYRADFRKLKQQIDAYLTANTNQKGTLFDSTLLHRIQTYLGGQRTDLNGQEIHGQYDLVKELTDNALDSVKWLQSIGVKFDESQVTMPVGAIWRRGHKPMGDLGFAYIKTLRAFVEQQGGTIMTETPVKELLVTDGQVRGVIATNAAHEKVIVHADAVILASGGFAANTKMLQKYNTYWTAIDDDVKTTNSPAMTGDGIRLGTSVGAALVGMGFSQMMPVSDPETGELFSGLQVPPANFVMVNQQGKRFVNEYGSRDELTQAAIDNGSLFYLIADDEIKKTAYNTTQAKIDQQVANGTLFRADTLTDLAQQIGMDPAALTKTIADYNRYVDAGEDPEFHKTAFDLKVAVAPFYATPRKPATHHTMGGLKIDSDAHVLNTDGQVIDGLYAAGEVAGGIHAGNRLGGNSLSDIFTFGRIAAAHAVAEHVDPVTA