ID PDXA_METPB Reviewed; 349 AA. AC B1ZAJ4; DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot. DT 20-MAY-2008, sequence version 1. DT 27-MAR-2024, entry version 102. DE RecName: Full=4-hydroxythreonine-4-phosphate dehydrogenase {ECO:0000255|HAMAP-Rule:MF_00536}; DE EC=1.1.1.262 {ECO:0000255|HAMAP-Rule:MF_00536}; DE AltName: Full=4-(phosphohydroxy)-L-threonine dehydrogenase {ECO:0000255|HAMAP-Rule:MF_00536}; GN Name=pdxA {ECO:0000255|HAMAP-Rule:MF_00536}; GN OrderedLocusNames=Mpop_3923; OS Methylorubrum populi (strain ATCC BAA-705 / NCIMB 13946 / BJ001) OS (Methylobacterium populi). OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales; OC Methylobacteriaceae; Methylorubrum. OX NCBI_TaxID=441620; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC BAA-705 / NCIMB 13946 / BJ001; RG US DOE Joint Genome Institute; RA Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H., RA Bruce D., Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C., RA Han C., Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L., RA Kyrpides N., Mikhailova N., Marx C., Richardson P.; RT "Complete sequence of chromosome of Methylobacterium populi BJ001."; RL Submitted (APR-2008) 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:0000255|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:0000255|HAMAP- CC Rule:MF_00536}; CC -!- COFACTOR: CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000255|HAMAP- CC Rule:MF_00536}; CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000255|HAMAP- CC Rule:MF_00536}; CC Name=Co(2+); Xref=ChEBI:CHEBI:48828; Evidence={ECO:0000255|HAMAP- CC 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:0000255|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:0000255|HAMAP-Rule:MF_00536}. CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00536}. CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00536}. CC -!- MISCELLANEOUS: The active site is located at the dimer interface. CC {ECO:0000255|HAMAP-Rule:MF_00536}. CC -!- SIMILARITY: Belongs to the PdxA family. {ECO:0000255|HAMAP- CC Rule:MF_00536}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; CP001029; ACB82050.1; -; Genomic_DNA. DR RefSeq; WP_012455753.1; NC_010725.1. DR AlphaFoldDB; B1ZAJ4; -. DR SMR; B1ZAJ4; -. DR STRING; 441620.Mpop_3923; -. DR KEGG; mpo:Mpop_3923; -. DR eggNOG; COG1995; Bacteria. DR HOGENOM; CLU_040168_1_0_5; -. DR OrthoDB; 9801783at2; -. DR UniPathway; UPA00244; UER00312. DR Proteomes; UP000007136; 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; Cytoplasm; Magnesium; Metal-binding; NAD; NADP; Oxidoreductase; KW Pyridoxine biosynthesis; Zinc. FT CHAIN 1..349 FT /note="4-hydroxythreonine-4-phosphate dehydrogenase" FT /id="PRO_1000128255" FT BINDING 141 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00536" FT BINDING 142 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00536" FT BINDING 176 FT /ligand="a divalent metal cation" FT /ligand_id="ChEBI:CHEBI:60240" FT /ligand_note="ligand shared between dimeric partners" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00536" FT BINDING 221 FT /ligand="a divalent metal cation" FT /ligand_id="ChEBI:CHEBI:60240" FT /ligand_note="ligand shared between dimeric partners" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00536" FT BINDING 276 FT /ligand="a divalent metal cation" FT /ligand_id="ChEBI:CHEBI:60240" FT /ligand_note="ligand shared between dimeric partners" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00536" FT BINDING 284 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00536" FT BINDING 293 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00536" FT BINDING 302 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00536" SQ SEQUENCE 349 AA; 36690 MW; A0EDF8D996F5D0DE CRC64; MASDDRPLAL TLGDPSGIGP EIALAAWRLR GERGVPPFQL IGDPEFLEAT AYRLGLSVPV AEVEPDDAVE VFARALPVLP LPSGAKVSAT PGAPDSANAG AIVESITAAV DLVRSGAASA VVTNPIAKFV LTRVGFAHPG HTEFLAALAA REGREPPLPV MMLWSELLAV VPVTIHVALR RVPDLLTQEL VERTARIVHA DLRARFGLEA PRLVLSGLNP HAGESGTMGT EDRDVLAPAV AALRAEGIDI RGPLPADTLF HERARATYDV ALAPTHDQAL IPIKTLAFDE GVNVTLGLPF VRTSPDHGTA FDIAGKGVAK PDSLIAALRL AQRLAQRPAN NVTPFPVRA //