ID A0A098TPM1_9CYAN Unreviewed; 348 AA.
AC A0A098TPM1;
DT 07-JAN-2015, integrated into UniProtKB/TrEMBL.
DT 07-JAN-2015, sequence version 1.
DT 24-JAN-2024, entry version 34.
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 ECO:0000313|EMBL:KGF73832.1};
GN ORFNames=DO97_10605 {ECO:0000313|EMBL:KGF73832.1};
OS Neosynechococcus sphagnicola sy1.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Leptolyngbyales;
OC Neosynechococcaceae; Neosynechococcus.
OX NCBI_TaxID=1497020 {ECO:0000313|EMBL:KGF73832.1, ECO:0000313|Proteomes:UP000030170};
RN [1] {ECO:0000313|EMBL:KGF73832.1, ECO:0000313|Proteomes:UP000030170}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CAUP A 1101 {ECO:0000313|EMBL:KGF73832.1,
RC ECO:0000313|Proteomes:UP000030170};
RA Dvorak P., Casamatta D., Hasler P., Poulickova A., Ondrej V., Sanges R.;
RT "Evolution of Synechococcus.";
RL Mol. Ecol. 0:0-0(2014).
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=a divalent metal cation; Xref=ChEBI:CHEBI:60240;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00536};
CC Note=Binds 1 divalent metal cation per subunit. {ECO:0000256|HAMAP-
CC 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}.
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:KGF73832.1}.
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DR EMBL; JJML01000003; KGF73832.1; -; Genomic_DNA.
DR RefSeq; WP_036530812.1; NZ_JJML01000003.1.
DR AlphaFoldDB; A0A098TPM1; -.
DR STRING; 1497020.DO97_10605; -.
DR OrthoDB; 9801783at2; -.
DR UniPathway; UPA00244; UER00312.
DR Proteomes; UP000030170; 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:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0051287; F:NAD binding; IEA:InterPro.
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 Cytoplasm {ECO:0000256|ARBA:ARBA00022490, 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:UP000030170}.
FT BINDING 135
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 170
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 215
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="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 289
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 298
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
FT BINDING 307
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00536"
SQ SEQUENCE 348 AA; 37348 MW; 992579B5FE5FF86F CRC64;
MLEFPKIALT LGDPAGIGPE VVLKALADAS THLMAQITVV GSRSQLVSSY EALRHCTHEP
LAEPDQLAIL DISLDRQTES QITPGIGNAA SGAASFAYLE AAIAQTLAGK FQAIVTGPIA
KSAWKAAGHL YPGQTELLAE RSGVSRFGML FVAQSPHSQW VLRTLLATTH IPLRAVPETL
SPALLATKLK LLVACLDQDF GLATPRIAIA GLNPHSGEQG QLGREEQDWL IPWLEESRRI
YPALHLDGPV PPDTLWVKPG QAWLGGEPLT LAHDAYLALY HDQGLIPVKL LAFDRAVNTT
IGLPFVRTSP DHGTAFDIVE QGVARPVSTQ EALKLAVQLV RQRGTPLD
//
