ID A0A0M4M6Y9_9SPHN Unreviewed; 342 AA.
AC A0A0M4M6Y9;
DT 09-DEC-2015, integrated into UniProtKB/TrEMBL.
DT 09-DEC-2015, sequence version 1.
DT 24-JAN-2024, entry version 28.
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=pdxA {ECO:0000256|HAMAP-Rule:MF_00536};
GN ORFNames=AMC99_00861 {ECO:0000313|EMBL:ALE16164.1};
OS Altererythrobacter epoxidivorans.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Erythrobacteraceae; Altererythrobacter.
OX NCBI_TaxID=361183 {ECO:0000313|EMBL:ALE16164.1, ECO:0000313|Proteomes:UP000057938};
RN [1] {ECO:0000313|EMBL:ALE16164.1, ECO:0000313|Proteomes:UP000057938}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CGMCC 1.7731 {ECO:0000313|EMBL:ALE16164.1,
RC ECO:0000313|Proteomes:UP000057938};
RA Li Z., Cheng H., Huo Y., Xu X.;
RT "Complete genome sequence of a benzo[a]pyrene-degrading bacterium
RT Altererythrobacter epoxidivorans CGMCC 1.7731T.";
RL Submitted (SEP-2015) 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: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00536}.
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DR EMBL; CP012669; ALE16164.1; -; Genomic_DNA.
DR RefSeq; WP_061923183.1; NZ_CP012669.1.
DR AlphaFoldDB; A0A0M4M6Y9; -.
DR STRING; 361183.AMC99_00861; -.
DR KEGG; aep:AMC99_00861; -.
DR PATRIC; fig|361183.4.peg.844; -.
DR OrthoDB; 9801783at2; -.
DR UniPathway; UPA00244; UER00312.
DR Proteomes; UP000057938; Chromosome.
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:0051287; F:NAD binding; IEA:InterPro.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
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}; 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:UP000057938};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_00536}.
FT BINDING 142
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 173
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 218
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 273
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 281
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 290
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 299
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
SQ SEQUENCE 342 AA; 35708 MW; 30403FFEBC10AF62 CRC64;
MPNPPLDAPI AISIGDPAGI GPELIAEAWL QRSRASLFPF AVIGGHEVLA AAARERGIDV
PLAPISDFSQ AFDTFDEALP VLAGLDARYH PGHPDEAGAA LALGSLQHAT KLAISGAASA
LVTAPIAKAE LAKIGFGYPG QTEFLAAACD LPARDAVMML AGTSLRTVPV TIHCALAEVP
GLLSIDLIRH KVAITARALA RDFGIEHPHL AIAGLNPHAG EGGRFGNEES TIIEPAIAAL
REEGLDVSGP YPGDALFTPR ARSQFHAAIC MYHDQALIPL KALEFDEGVN VTLGLPIVRT
SPDHGTAFDI AGKGLASPDA FIAAVRMAGE CAYRREARHR HG
//
