Protein
Choline trimethylamine-lyase
Organism
Desulfovibrio alaskensis (strain G20)
Function
Glycine radical enzyme that catalyzes the cleavage of a C-N bond in choline, producing trimethylamine (TMA) and acetaldehyde (PubMed:23151509, PubMed:24854437). Is involved in the anaerobic choline utilization pathway that allows D.alaskensis to grow on choline as a source of carbon and energy (PubMed:23151509). Is strictly specific for choline as substrate (PubMed:24854437).
Sequence
MDLQDFSHKLAEATKNLTPAERASLKKIFEGVSAEVFSQPAPVSAVATGAESGIPDGPTPRHVKLKENFLKQVPSITVQRAVAITKIAKENPGLPKPLLRAKTFRYCCETAPLVIQDHELIVGSPNGAPRAGAFSPEVAWRWLQDELDTIGSRPQDPFYISEEDKKVLREEVFPFWQNKSVDEFCEGQYREADLWEMSGESFVSDCSYHAVNGGGDSNPGYDVILMKKGMLDIQREAREKLEQLDYANPEDIDKIYFYKSVIETAEGVMIYARRLSAYAAELAARETDPRRKAELQKISEVNARVPAHAPSNFWEAIQAVWTVESLLVVEENQTGMSIGRVDQYMYPFYRADIDSGRLTEYEAFDLAGCMLVKMSEMMWITSEGASKFFAGYQPFVNMCVGGVTREGHDATNDLTYMLMDAVRHVRIYQPTLATRVHNKSPQKYLKKIVDVIRSGMGFPAVHFDDAHIKMMLAKGVSIEDARDYCLMGCVEPQKSGRLYQWTSTGYTQWPICIELVLNHGVPLWYGKKVTPDMGDLSQYDTYEKFEAAVKEQIRWITKNTSVATVISQRAHRELAPKPLMSLMYEGCMESGRDVSAGGAMYNFGPGVVWSGLATYVDSMAAIKKLVYDDRKYTLAQLNEALKADFAGYDQILADCLAAPKYGNDDDYADMIAADLVHFTETEHRKYKTLYSVLSHGTLSISNNTPFGQLLGASANGRRAWMPLSDGISPTQGADYKGPTAIIKSVSKMANDNMNIGMVHNFKLMSGLLDTPEGENGLITLIRTACMLGNGEMQFNYLDNELLLDAQKHPEKYRDLVVRVAGYSAFFVELCKDVQDEIISRTMLHGF