Protein
Apparent malate synthase
Organism
Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809)
Function
Involved in the methylaspartate cycle. Catalyzes the biosynthesis of malate in two steps. In the first reaction acetyl-CoA is condensed reversibly with glyoxylate to form (S)-malyl-CoA. In the second reaction (S)-malyl-CoA is hydrolyzed to malate and CoA. It can also catalyzes the condensation of propionyl-CoA with glyoxylate and of acetyl-CoA with pyruvate, however the CoA-ester hydrolysis reaction is highly specific for (S)-malyl-CoA.
Similarity
Belongs to the HpcH/HpaI aldolase family.
Sequence
MSVTRHYDREFVRTFFTSPTAVDGEEDSAKMLRSAGQLRGLQAPDVWVPDNEDATAPNMRAEGVENIIDVVANQGAEFPGEIHPRVVWHRESPATRYKGFQQMLEITDPENGAVEHIDGFVIPEVGDIDDWKKADEFFTIIEHEHGLEEGSLSMSVIVESGEAELAMGDLREEMGKPSNNLERMFLLVDGEVDYTKDMRAMTPTGELPPWPELRHNTSRGASAAGLIAVDGPYDDIRDVEGYRERMKDNRAKGMTGIWSLTPGQVVEANTAPLPPKTGSWLLEAGGQEVELEAQDGKQVYDGDDLSLEEVSDGGYVLQAGGDRLELDEDELTEELLDRTAYIPSMTDIVDSMEEFEAAKEAGKGAIAMTQAATLVINGVEVDISKDRMWDEATYQAAQTPITLFQDVYEHRPDQHEELAEMYGADIVERATAVGN