Phosphoserine aminotransferase (EC 2.6.1.52) (Phosphohydroxythreonine aminotransferase) (PSAT)
1_MDAPR 6_ QVVNF 11_ GPGPA 16_ KLPHS 21_ VLLEI 26_ QKELL 31_ DYKGV 36_ GISVL 41_ EMSHR 46_ SSDFA 51_ KIINN 56_ TENLV 61_ RELLA 66_ VPDNY 71_ KVIFL 76_ QGGGC 81_ GQFSA 86_ VPLNL 91_ IGLKA 96_ GRCAD 101_ YVVTG 106_ AWSAK 111_ AAEEA 116_ KKFGT 121_ INIVH 126_ PKLGS 131_ YTKIP 136_ DPSTW 141_ NLNPD 146_ ASYVY 151_ YCANE 156_ TVHGV 161_ EFDFI 166_ PDVKG 171_ AVLVC 176_ DMSSN 181_ FLSKP 186_ VDVSK 191_ FGVIF 196_ AGAQK 201_ NVGSA 206_ GVTVV 211_ IVRDD 216_ LLGFA 221_ LRECP 226_ SVLEY 231_ KVQAG 236_ NSSLY 241_ NTPPC 246_ FSIYV 251_ MGLVL 256_ EWIKN 261_ NGGAA 266_ AMEKL 271_ SSIKS 276_ QTIYE 281_ IIDNS 286_ QGFYV 291_ CPVEP 296_ QNRSK 301_ MNIPF 306_ RIGNA 311_ KGDDA 316_ LEKRF 321_ LDKAL 326_ ELNML 331_ SLKGH 336_ RSVGG 341_ IRASL 346_ YNAVT 351_ IEDVQ 356_ KLAAF 361_MKKFL
1: Involved in L-serine biosynthesis via the phosphorylated pathway, a three-step pathway converting the glycolytic intermediate 3-phospho-D-glycerate into L-serine. Catalyzes the second step, that is the pyridoxal 5'-phosphate-dependent transamination of 3-phosphohydroxypyruvate and L-glutamate to O-phosphoserine (OPS) and alpha-ketoglutarate