ID   2.6.1.52
DE   phosphoserine transaminase.
AN   3-phosphoserine aminotransferase.
AN   3PHP transaminase.
AN   hydroxypyruvic phosphate--glutamic transaminase.
AN   L-phosphoserine aminotransferase.
AN   phosphohydroxypyruvate transaminase.
AN   phosphohydroxypyruvic--glutamic transaminase.
AN   phosphoserine aminotransferase.
AN   PSAT.
CA   (1) 2-oxoglutarate + O-phospho-L-serine = 3-phosphooxypyruvate +
CA   L-glutamate.
CA   (2) 2-oxoglutarate + 4-(phosphooxy)-L-threonine = (R)-3-hydroxy-2-oxo-4-
CA   phosphooxybutanoate + L-glutamate.
CC   -!- A pyridoxal 5'-phosphate protein.
CC   -!- This enzyme catalyzes the second step in the phosphorylated pathway
CC       of serine biosynthesis and the third step in pyridoxal 5'-phosphate
CC       biosynthesis in the bacterium Escherichia coli.
CC   -!- Pyridoxal 5'-phosphate is the cofactor for both activities and
CC       therefore seems to be involved in its own biosynthesis.
CC   -!- Non-phosphorylated forms of serine and threonine are not substrates.
CC   -!- The archaeal enzyme has a relaxed specificity and can act on
CC       L-cysteate and L-alanine as alternative substrates to O-phospho-L-
CC       serine.
DR   Q96255, SERB1_ARATH;  Q9SHP0, SERB2_ARATH;  Q6F961, SERC_ACIAD ;
DR   B7GY87, SERC_ACIB3 ;  B7I5D6, SERC_ACIB5 ;  B2HWW3, SERC_ACIBC ;
DR   A3M7Z0, SERC_ACIBT ;  B7J6V1, SERC_ACIF2 ;  B5EPR5, SERC_ACIF5 ;
DR   Q21Y51, SERC_ALBFT ;  Q5E6F2, SERC_ALIF1 ;  B5FCJ8, SERC_ALIFM ;
DR   Q9RME2, SERC_ALKAL ;  Q5P7U7, SERC_AROAE ;  B6YQL2, SERC_AZOPC ;
DR   C1DRQ9, SERC_AZOVD ;  C3P210, SERC_BACAA ;  Q734W9, SERC_BACC1 ;
DR   Q81BC0, SERC_BACCR ;  Q638W1, SERC_BACCZ ;  Q5LDN9, SERC_BACFN ;
DR   Q64UR4, SERC_BACFR ;  Q6HGI0, SERC_BACHK ;  P80862, SERC_BACSU ;
DR   Q8A8L4, SERC_BACTN ;  Q1LTL2, SERC_BAUCH ;  Q7VR40, SERC_BLOFL ;
DR   Q492S5, SERC_BLOPB ;  Q2L2T1, SERC_BORA1 ;  Q7WGU2, SERC_BORBR ;
DR   Q7W5Z9, SERC_BORPA ;  A9IJI3, SERC_BORPD ;  Q7VZG4, SERC_BORPE ;
DR   B8D9A2, SERC_BUCA5 ;  P57397, SERC_BUCAI ;  P81435, SERC_BUCAP ;
DR   B8D7K4, SERC_BUCAT ;  P59492, SERC_BUCBP ;  Q057N5, SERC_BUCCC ;
DR   B1YV30, SERC_BURA4 ;  A0K5L8, SERC_BURCH ;  B4EB45, SERC_BURCJ ;
DR   Q0BH96, SERC_BURCM ;  Q39IG4, SERC_BURL3 ;  A9ADV9, SERC_BURM1 ;
DR   B1JXR6, SERC_BURO0 ;  Q1BY31, SERC_BURO1 ;  A4JCH1, SERC_BURVG ;
DR   P91856, SERC_CAEEL ;  A8FKB5, SERC_CAMJ8 ;  A7H543, SERC_CAMJD ;
DR   Q9PIH3, SERC_CAMJE ;  A1VY45, SERC_CAMJJ ;  Q5HWE5, SERC_CAMJR ;
DR   B9KDM7, SERC_CAMLR ;  Q7NVP1, SERC_CHRVO ;  A8AIH6, SERC_CITK8 ;
DR   A4QCG9, SERC_CORGB ;  B6J893, SERC_COXB1 ;  B6J1E0, SERC_COXB2 ;
DR   A9KCT6, SERC_COXBN ;  A9NC17, SERC_COXBR ;  Q83E12, SERC_COXBU ;
DR   A7MES8, SERC_CROS8 ;  A9BM04, SERC_DELAS ;  B8FLC3, SERC_DESAL ;
DR   A9A0A5, SERC_DESOH ;  Q6ALW3, SERC_DESPS ;  Q55CQ6, SERC_DICDI ;
DR   A5EV80, SERC_DICNV ;  Q9VAN0, SERC_DROME ;  A7ZJZ6, SERC_ECO24 ;
DR   B7UMZ3, SERC_ECO27 ;  B7MHL6, SERC_ECO45 ;  B7LD99, SERC_ECO55 ;
DR   Q8XEA7, SERC_ECO57 ;  B5YT41, SERC_ECO5E ;  B7NM68, SERC_ECO7I ;
DR   B7MS22, SERC_ECO81 ;  B7M835, SERC_ECO8A ;  C4ZQ33, SERC_ECOBW ;
DR   B1X847, SERC_ECODH ;  A7ZYL0, SERC_ECOHS ;  A1A9I4, SERC_ECOK1 ;
DR   Q0TJE6, SERC_ECOL5 ;  Q8FJB7, SERC_ECOL6 ;  B1IW24, SERC_ECOLC ;
DR   P23721, SERC_ECOLI ;  B7NAQ6, SERC_ECOLU ;  B6I8X9, SERC_ECOSE ;
DR   B1LJV7, SERC_ECOSM ;  Q1RDV1, SERC_ECOUT ;  Q9X4H1, SERC_EDWI9 ;
DR   A4W8S7, SERC_ENT38 ;  B2VC80, SERC_ERWT9 ;  B7LN70, SERC_ESCF3 ;
DR   C4L432, SERC_EXISA ;  A5FH28, SERC_FLAJ1 ;  A6GXC2, SERC_FLAPJ ;
DR   Q5L296, SERC_GEOKA ;  Q7VLP0, SERC_HAEDU ;  P44336, SERC_HAEIN ;
DR   Q2SCF2, SERC_HAHCH ;  Q9KDM4, SERC_HALH5 ;  C4K3B1, SERC_HAMD5 ;
DR   A9B6Q3, SERC_HERA2 ;  A4G865, SERC_HERAR ;  Q0I322, SERC_HISS1 ;
DR   Q9Y617, SERC_HUMAN ;  Q5QZ48, SERC_IDILO ;  A6T1G7, SERC_JANMA ;
DR   B5XY88, SERC_KLEP3 ;  A6T700, SERC_KLEP7 ;  A8YW78, SERC_LACH4 ;
DR   Q9CHW5, SERC_LACLA ;  A2RIS2, SERC_LACLM ;  Q031D5, SERC_LACLS ;
DR   Q88ZU5, SERC_LACPL ;  C1D8N3, SERC_LARHH ;  Q5X5E7, SERC_LEGPA ;
DR   A5IBR0, SERC_LEGPC ;  Q5ZVM2, SERC_LEGPH ;  Q5WWT0, SERC_LEGPL ;
DR   B0SCE2, SERC_LEPBA ;  B0SKW4, SERC_LEPBP ;  Q72VI2, SERC_LEPIC ;
DR   Q8F930, SERC_LEPIN ;  Q03W65, SERC_LEUMM ;  B2GBS2, SERC_LIMF3 ;
DR   Q926T3, SERC_LISIN ;  Q71VT6, SERC_LISMF ;  Q8Y3L0, SERC_LISMO ;
DR   B1HSU6, SERC_LYSSC ;  Q65S80, SERC_MANSM ;  A6VZ92, SERC_MARMS ;
DR   Q8TNI1, SERC_METAC ;  P52878, SERC_METBF ;  Q8PT12, SERC_METMA ;
DR   Q99K85, SERC_MOUSE ;  A0QBI3, SERC_MYCA1 ;  P63515, SERC_MYCBO ;
DR   O33062, SERC_MYCLE ;  Q742L2, SERC_MYCPA ;  A3Q635, SERC_MYCSJ ;
DR   A1ULN4, SERC_MYCSK ;  Q1B3G6, SERC_MYCSS ;  P9WQ72, SERC_MYCTO ;
DR   P9WQ73, SERC_MYCTU ;  A1TF55, SERC_MYCVP ;  Q1D2L9, SERC_MYXXD ;
DR   Q5F7A0, SERC_NEIG1 ;  O34370, SERC_NEIMA ;  P57007, SERC_NEIMB ;
DR   A1KV48, SERC_NEIMF ;  Q59196, SERC_NIACI ;  Q820S0, SERC_NITEU ;
DR   A1SEM0, SERC_NOCSJ ;  A1TSA3, SERC_PARC0 ;  A6L9B7, SERC_PARD8 ;
DR   B2JF00, SERC_PARP8 ;  B2T637, SERC_PARPJ ;  P57881, SERC_PASMU ;
DR   Q6D400, SERC_PECAS ;  C6DF64, SERC_PECCP ;  Q7N6D6, SERC_PHOLL ;
DR   Q6LPD9, SERC_PHOPR ;  A6L5A6, SERC_PHOV8 ;  A1VR16, SERC_POLNA ;
DR   Q12CL3, SERC_POLSJ ;  B2RID6, SERC_PORG3 ;  Q7MV30, SERC_PORGI ;
DR   B4ET24, SERC_PROMH ;  A6V2Q8, SERC_PSEA7 ;  B7V9J9, SERC_PSEA8 ;
DR   Q02PX3, SERC_PSEAB ;  Q9HZ66, SERC_PSEAE ;  Q1IDA2, SERC_PSEE4 ;
DR   C3K6J5, SERC_PSEFS ;  A4XTE7, SERC_PSEMY ;  Q88M07, SERC_PSEPK ;
DR   Q885T5, SERC_PSESM ;  Q3ILA3, SERC_PSET1 ;  Q4ZQ94, SERC_PSEU2 ;
DR   P10658, SERC_RABIT ;  Q8Y0Z0, SERC_RALN1 ;  B2U882, SERC_RALPJ ;
DR   Q7UQL3, SERC_RHOBA ;  Q0S6R3, SERC_RHOJR ;  C1ATN6, SERC_RHOOB ;
DR   A1AWS0, SERC_RUTMC ;  B5F159, SERC_SALA4 ;  A9MHX6, SERC_SALAR ;
DR   Q57R24, SERC_SALCH ;  B5FQ49, SERC_SALDC ;  B5QYQ7, SERC_SALEP ;
DR   B5R8J4, SERC_SALG2 ;  P62676, SERC_SALGL ;  B4TD37, SERC_SALHS ;
DR   B4T141, SERC_SALNS ;  A9N7V7, SERC_SALPB ;  C0PXU3, SERC_SALPC ;
DR   B4TRT8, SERC_SALSV ;  P62677, SERC_SALTI ;  P55900, SERC_SALTY ;
DR   Q10349, SERC_SCHPO ;  A8GCH0, SERC_SERP5 ;  A1S6D1, SERC_SHEAM ;
DR   B8EA90, SERC_SHEB2 ;  A3D4A1, SERC_SHEB5 ;  A6WNN5, SERC_SHEB8 ;
DR   A9L2Y2, SERC_SHEB9 ;  Q12MU6, SERC_SHEDO ;  Q081U0, SERC_SHEFN ;
DR   B0TT41, SERC_SHEHH ;  Q8EEH2, SERC_SHEON ;  A8H4A2, SERC_SHEPA ;
DR   A4Y757, SERC_SHEPC ;  B8CMG9, SERC_SHEPW ;  A0KWN5, SERC_SHESA ;
DR   A8FVN8, SERC_SHESH ;  Q0HIX3, SERC_SHESM ;  Q0HV09, SERC_SHESR ;
DR   A1RJD3, SERC_SHESW ;  B1KF45, SERC_SHEWM ;  B2TUH4, SERC_SHIB3 ;
DR   Q31YU4, SERC_SHIBS ;  Q32E24, SERC_SHIDS ;  Q83LP3, SERC_SHIFL ;
DR   Q3Z3L5, SERC_SHISS ;  Q5WHT9, SERC_SHOC1 ;  Q2NUB0, SERC_SODGM ;
DR   P52877, SERC_SPIOL ;  Q8E3Y3, SERC_STRA3 ;  B4SP45, SERC_STRM5 ;
DR   B2FKF0, SERC_STRMK ;  Q8DSV3, SERC_STRMU ;  A4W0D4, SERC_STRS2 ;
DR   A3CPJ2, SERC_STRSV ;  A4VU42, SERC_STRSY ;  Q5LYP0, SERC_STRT1 ;
DR   Q5M3A4, SERC_STRT2 ;  Q03JH6, SERC_STRTD ;  B9DTW4, SERC_STRU0 ;
DR   Q9RI02, SERC_STUST ;  A0LK14, SERC_SYNFM ;  Q3SK88, SERC_THIDA ;
DR   A5CWI0, SERC_VESOH ;  Q9KSU7, SERC_VIBCH ;  Q87QA3, SERC_VIBPA ;
DR   Q8D900, SERC_VIBVU ;  Q7MLH6, SERC_VIBVY ;  Q8D268, SERC_WIGBR ;
DR   Q8PLY7, SERC_XANAC ;  Q3BUZ3, SERC_XANC5 ;  Q4UTC9, SERC_XANC8 ;
DR   B0RUW3, SERC_XANCB ;  Q8PA97, SERC_XANCP ;  Q2P354, SERC_XANOM ;
DR   B2SJJ1, SERC_XANOP ;  Q5H079, SERC_XANOR ;  Q8RLW0, SERC_XENNA ;
DR   Q9PB19, SERC_XYLFA ;  Q87BU0, SERC_XYLFT ;  P33330, SERC_YEAST ;
DR   P19689, SERC_YERE8 ;  A7FJX0, SERC_YERP3 ;  Q1CA74, SERC_YERPA ;
DR   B2KA22, SERC_YERPB ;  Q8ZGB4, SERC_YERPE ;  A9R7I1, SERC_YERPG ;
DR   A4TN19, SERC_YERPP ;  Q66CI9, SERC_YERPS ;  B1JRE0, SERC_YERPY ;
//