ID A8U1W0_9PROT Unreviewed; 341 AA.
AC A8U1W0;
DT 15-JAN-2008, integrated into UniProtKB/TrEMBL.
DT 15-JAN-2008, sequence version 1.
DT 13-SEP-2023, entry version 67.
DE RecName: Full=4-hydroxythreonine-4-phosphate dehydrogenase {ECO:0000256|HAMAP-Rule:MF_00536};
DE EC=1.1.1.262 {ECO:0000256|HAMAP-Rule:MF_00536};
DE AltName: Full=4-(phosphohydroxy)-L-threonine dehydrogenase {ECO:0000256|HAMAP-Rule:MF_00536};
GN Name=ksgA {ECO:0000313|EMBL:EDP61837.1};
GN Synonyms=pdxA {ECO:0000256|HAMAP-Rule:MF_00536};
GN ORFNames=BAL199_23632 {ECO:0000313|EMBL:EDP61837.1};
OS alpha proteobacterium BAL199.
OC Bacteria; Pseudomonadota; Alphaproteobacteria.
OX NCBI_TaxID=331869 {ECO:0000313|EMBL:EDP61837.1, ECO:0000313|Proteomes:UP000003417};
RN [1] {ECO:0000313|EMBL:EDP61837.1, ECO:0000313|Proteomes:UP000003417}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BAL199 {ECO:0000313|EMBL:EDP61837.1,
RC ECO:0000313|Proteomes:UP000003417};
RA Hagstrom A., Ferriera S., Johnson J., Kravitz S., Beeson K., Sutton G.,
RA Rogers Y.-H., Friedman R., Frazier M., Venter J.C.;
RL Submitted (OCT-2007) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the NAD(P)-dependent oxidation of 4-(phosphooxy)-L-
CC threonine (HTP) into 2-amino-3-oxo-4-(phosphooxy)butyric acid which
CC spontaneously decarboxylates to form 3-amino-2-oxopropyl phosphate
CC (AHAP). {ECO:0000256|HAMAP-Rule:MF_00536}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=4-(phosphooxy)-L-threonine + NAD(+) = 3-amino-2-oxopropyl
CC phosphate + CO2 + NADH; Xref=Rhea:RHEA:32275, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:57279, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945,
CC ChEBI:CHEBI:58452; EC=1.1.1.262; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_00536};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00536};
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00536};
CC Name=Co(2+); Xref=ChEBI:CHEBI:48828;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00536};
CC Note=Binds 1 divalent metal cation per subunit. Can use ions such as
CC Zn(2+), Mg(2+) or Co(2+). {ECO:0000256|HAMAP-Rule:MF_00536};
CC -!- PATHWAY: Cofactor biosynthesis; pyridoxine 5'-phosphate biosynthesis;
CC pyridoxine 5'-phosphate from D-erythrose 4-phosphate: step 4/5.
CC {ECO:0000256|HAMAP-Rule:MF_00536}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00536}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00536}.
CC -!- MISCELLANEOUS: The active site is located at the dimer interface.
CC {ECO:0000256|HAMAP-Rule:MF_00536}.
CC -!- SIMILARITY: Belongs to the PdxA family. {ECO:0000256|HAMAP-
CC Rule:MF_00536}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EDP61837.1}.
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DR EMBL; ABHC01000027; EDP61837.1; -; Genomic_DNA.
DR AlphaFoldDB; A8U1W0; -.
DR STRING; 331869.BAL199_23632; -.
DR eggNOG; COG1995; Bacteria.
DR OrthoDB; 9801783at2; -.
DR UniPathway; UPA00244; UER00312.
DR Proteomes; UP000003417; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0050570; F:4-hydroxythreonine-4-phosphate dehydrogenase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0050897; F:cobalt ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008168; F:methyltransferase activity; IEA:UniProtKB-KW.
DR GO; GO:0051287; F:NAD binding; IEA:InterPro.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0042823; P:pyridoxal phosphate biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0008615; P:pyridoxine biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.718.10; Isopropylmalate Dehydrogenase; 1.
DR HAMAP; MF_00536; PdxA; 1.
DR InterPro; IPR037510; PdxA.
DR InterPro; IPR005255; PdxA_fam.
DR NCBIfam; TIGR00557; pdxA; 1.
DR PANTHER; PTHR30004; 4-HYDROXYTHREONINE-4-PHOSPHATE DEHYDROGENASE; 1.
DR PANTHER; PTHR30004:SF6; D-THREONATE 4-PHOSPHATE DEHYDROGENASE; 1.
DR Pfam; PF04166; PdxA; 1.
DR SUPFAM; SSF53659; Isocitrate/Isopropylmalate dehydrogenase-like; 1.
PE 3: Inferred from homology;
KW Cobalt {ECO:0000256|HAMAP-Rule:MF_00536};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00536};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_00536};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00536}; Methyltransferase {ECO:0000313|EMBL:EDP61837.1};
KW NAD {ECO:0000256|HAMAP-Rule:MF_00536};
KW NADP {ECO:0000256|HAMAP-Rule:MF_00536};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_00536}; Pyridoxine biosynthesis {ECO:0000256|HAMAP-Rule:MF_00536};
KW Reference proteome {ECO:0000313|Proteomes:UP000003417};
KW Transferase {ECO:0000313|EMBL:EDP61837.1};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_00536}.
FT BINDING 138
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 139
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 169
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 214
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 269
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 277
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 286
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 295
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
SQ SEQUENCE 341 AA; 35404 MW; DF7A04C8693B179C CRC64;
MTATSPLALT PGEPAGVGCE LAAEAWSRRS DGIPAFFLID DPDRVASRMR LIGRTLPLQT
ITEPAEASSV FAEALPVLLH PFPSPDHPGA PNPANGSAVA DAIERAVRLV RSGQASAIVT
NPIQKETLYQ AGFAHPGHTE FLAHLVGPDV IPVMLLASEA LRVVPVTIHI PLSEVPGRLT
TDTIVTVARI TAAALARDFG IVAPRLAVAG LNPHAGEGGA LGREDQDVIA PAVAALRAEG
IDAVGPLPAD TMFHAEARAG YDVALGMYHD QVLVPLKTLD FWGGVNVTLG LPFVRTSPDH
GTALDLAGTG RARPDSLIAA LQLAATMVAR RNAAQRAGQA S
//
