Organism
Methanoregula boonei (strain DSM 21154 / JCM 14090 / 6A8)
Function
Specifically catalyzes the beta-elimination of phosphate from L-phosphoserine and the beta-addition of sulfite to the dehydroalanine intermediate to produce L-cysteate.
Similarity
Belongs to the threonine synthase family. Cysteate synthase subfamily.
Sequence
MIPKYRIRCISGGEIVPDITSLSCPAGHDSLLRTEYTSRRLQLSYHSGIFRYLCWLPVTAPLLPSGGPVTFTSDELSRELGLSRLAISFSGYSPEHHASLTTGSFKELEALATLQRLWELGKKIPVIASAGNTGRAFAGLSAQYGKPVVVVVPSSAVSRLWTTTPAQDVFLVAVDGDYTDAIAVSTALATVPGCVPEGGARNVARRDGMGTTVLDAAVTLGRIPDHYFQAVGSGTGAIAAWEAALRLIGDGRYGTKLPRLHLAQNKPFTPIVLAWQQRRRTFKPELDMPDAPNAIKEVMSPVLTNRSPPYGIGGGLFDALQATEGQMYAVSNDEGKKGMALIRDTLGIDPDPAAAVATAALVQAAAAGTVGPDDSILLNITGGGYERIREDYTLYPIEPSVTVNQHETGDTLKAELSRWVAHYG