Organism
Methanocella arvoryzae (strain DSM 22066 / NBRC 105507 / MRE50)
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
MGEYTLVCPCSGKTVPDHYTLNCDCGSLIRTEYAARQLTLRNLPGMWKFYDWLPASGHTDTPGTTVTYRSEGLAKELGIDLHVAFNGYWPELGADMKTCSFKELEAPPTIVRAKEHGGKAMVLASAGNTARAFSYLSTITGFPLIVVVPKQNIDRLWIPGREPGASVKLISVGGGCDYTDAINLSNRIAALPGMMPEGGAKNVARRDGMGTVMLDAAVTMKGMPDDYFQAIGSGTGGIAAWEASMRLRADGRFGSKLPRLHLAQNLPFVPMLNAWKEGRREIIPERDMPDAKKSIAEMYSDVLSNRTPPYGVGGGVFDAMKATDGLMYGITREEAVAAKKLFEAREGIDILPPAAVAVAALVQASEKGLLEGRKVVLNVTGGGQERLMKEVPIYQVEPVLEVPGPDVPMEEILKVIA