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TDH_SALAR
ID   TDH_SALAR               Reviewed;         341 AA.
AC   A9MKQ8;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=L-threonine 3-dehydrogenase {ECO:0000255|HAMAP-Rule:MF_00627};
DE            Short=TDH {ECO:0000255|HAMAP-Rule:MF_00627};
DE            EC=1.1.1.103 {ECO:0000255|HAMAP-Rule:MF_00627};
GN   Name=tdh {ECO:0000255|HAMAP-Rule:MF_00627}; OrderedLocusNames=SARI_03933;
OS   Salmonella arizonae (strain ATCC BAA-731 / CDC346-86 / RSK2980).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=41514;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-731 / CDC346-86 / RSK2980;
RG   The Salmonella enterica serovar Arizonae Genome Sequencing Project;
RA   McClelland M., Sanderson E.K., Porwollik S., Spieth J., Clifton W.S.,
RA   Fulton R., Chunyan W., Wollam A., Shah N., Pepin K., Bhonagiri V., Nash W.,
RA   Johnson M., Thiruvilangam P., Wilson R.;
RL   Submitted (NOV-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the NAD(+)-dependent oxidation of L-threonine to 2-
CC       amino-3-ketobutyrate. {ECO:0000255|HAMAP-Rule:MF_00627}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-threonine + NAD(+) = (2S)-2-amino-3-oxobutanoate + H(+) +
CC         NADH; Xref=Rhea:RHEA:13161, ChEBI:CHEBI:15378, ChEBI:CHEBI:57540,
CC         ChEBI:CHEBI:57926, ChEBI:CHEBI:57945, ChEBI:CHEBI:78948;
CC         EC=1.1.1.103; Evidence={ECO:0000255|HAMAP-Rule:MF_00627};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00627};
CC       Note=Binds 2 Zn(2+) ions per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_00627};
CC   -!- PATHWAY: Amino-acid degradation; L-threonine degradation via oxydo-
CC       reductase pathway; glycine from L-threonine: step 1/2.
CC       {ECO:0000255|HAMAP-Rule:MF_00627}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_00627}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00627}.
CC   -!- SIMILARITY: Belongs to the zinc-containing alcohol dehydrogenase
CC       family. {ECO:0000255|HAMAP-Rule:MF_00627}.
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DR   EMBL; CP000880; ABX23727.1; -; Genomic_DNA.
DR   RefSeq; WP_000646000.1; NC_010067.1.
DR   AlphaFoldDB; A9MKQ8; -.
DR   SMR; A9MKQ8; -.
DR   STRING; 41514.SARI_03933; -.
DR   EnsemblBacteria; ABX23727; ABX23727; SARI_03933.
DR   KEGG; ses:SARI_03933; -.
DR   HOGENOM; CLU_026673_11_0_6; -.
DR   OMA; GVFHNTP; -.
DR   OrthoDB; 972769at2; -.
DR   UniPathway; UPA00046; UER00505.
DR   Proteomes; UP000002084; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0008743; F:L-threonine 3-dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0019518; P:L-threonine catabolic process to glycine; IEA:UniProtKB-UniPathway.
DR   HAMAP; MF_00627; Thr_dehydrog; 1.
DR   InterPro; IPR013149; ADH-like_C.
DR   InterPro; IPR013154; ADH_N.
DR   InterPro; IPR002328; ADH_Zn_CS.
DR   InterPro; IPR011032; GroES-like_sf.
DR   InterPro; IPR004627; L-Threonine_3-DHase.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   InterPro; IPR020843; PKS_ER.
DR   Pfam; PF08240; ADH_N; 1.
DR   Pfam; PF00107; ADH_zinc_N; 1.
DR   SMART; SM00829; PKS_ER; 1.
DR   SUPFAM; SSF50129; SSF50129; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   TIGRFAMs; TIGR00692; tdh; 1.
DR   PROSITE; PS00059; ADH_ZINC; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Metal-binding; NAD; Oxidoreductase; Reference proteome; Zinc.
FT   CHAIN           1..341
FT                   /note="L-threonine 3-dehydrogenase"
FT                   /id="PRO_1000082613"
FT   ACT_SITE        40
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   ACT_SITE        43
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         38
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         63
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         64
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         93
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         96
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         99
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         107
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         175
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         195
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         200
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         262..264
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   BINDING         286..287
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
FT   SITE            148
FT                   /note="Important for catalytic activity for the proton
FT                   relay mechanism but does not participate directly in the
FT                   coordination of zinc atom"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00627"
SQ   SEQUENCE   341 AA;  37184 MW;  B1E2BD5B79A38A5E CRC64;
     MKALSKLKAE EGIWMTDVPE PEVGHNDLLI KIRKTAICGT DVHIYNWDEW SQKTIPVPMV
     VGHEYVGEVV GIGQEVKGFN IGDRVSGEGH ITCGHCRNCR GGRTHLCRNT TGVGVNRPGC
     FAEYLVIPAF NAFKIPDNIS DDLASIFDPF GNAVHTALSF DLVGEDVLVS GAGPIGVMAA
     AVAKHVGARH VVITDVNEYR LELARKMGVT RAVNVAKESL TDVMAELGMT EGFDVGLEMS
     GAPPAFRTML DTMNHGGRIA MLGIPPADMS IDWTKVIFKG LFIKGIYGRE MFETWYKMAA
     LIQSGLDLSP IITHRFSIDD FQKGFDAMRS GQSGKVILSW D
 
 
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