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DAPB_SALTY
ID   DAPB_SALTY              Reviewed;         273 AA.
AC   Q8ZRX8;
DT   15-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   03-AUG-2022, entry version 124.
DE   RecName: Full=4-hydroxy-tetrahydrodipicolinate reductase {ECO:0000255|HAMAP-Rule:MF_00102};
DE            Short=HTPA reductase {ECO:0000255|HAMAP-Rule:MF_00102};
DE            EC=1.17.1.8 {ECO:0000255|HAMAP-Rule:MF_00102};
GN   Name=dapB {ECO:0000255|HAMAP-Rule:MF_00102}; OrderedLocusNames=STM0064;
OS   Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=99287;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LT2 / SGSC1412 / ATCC 700720;
RX   PubMed=11677609; DOI=10.1038/35101614;
RA   McClelland M., Sanderson K.E., Spieth J., Clifton S.W., Latreille P.,
RA   Courtney L., Porwollik S., Ali J., Dante M., Du F., Hou S., Layman D.,
RA   Leonard S., Nguyen C., Scott K., Holmes A., Grewal N., Mulvaney E.,
RA   Ryan E., Sun H., Florea L., Miller W., Stoneking T., Nhan M., Waterston R.,
RA   Wilson R.K.;
RT   "Complete genome sequence of Salmonella enterica serovar Typhimurium LT2.";
RL   Nature 413:852-856(2001).
CC   -!- FUNCTION: Catalyzes the conversion of 4-hydroxy-tetrahydrodipicolinate
CC       (HTPA) to tetrahydrodipicolinate. {ECO:0000255|HAMAP-Rule:MF_00102}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-2,3,4,5-tetrahydrodipicolinate + H2O + NAD(+) = (2S,4S)-4-
CC         hydroxy-2,3,4,5-tetrahydrodipicolinate + H(+) + NADH;
CC         Xref=Rhea:RHEA:35323, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:16845, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945,
CC         ChEBI:CHEBI:67139; EC=1.17.1.8; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00102};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-2,3,4,5-tetrahydrodipicolinate + H2O + NADP(+) = (2S,4S)-
CC         4-hydroxy-2,3,4,5-tetrahydrodipicolinate + H(+) + NADPH;
CC         Xref=Rhea:RHEA:35331, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:16845, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349,
CC         ChEBI:CHEBI:67139; EC=1.17.1.8; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00102};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-lysine biosynthesis via DAP
CC       pathway; (S)-tetrahydrodipicolinate from L-aspartate: step 4/4.
CC       {ECO:0000255|HAMAP-Rule:MF_00102}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_00102}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00102}.
CC   -!- SIMILARITY: Belongs to the DapB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00102}.
CC   -!- CAUTION: Was originally thought to be a dihydrodipicolinate reductase
CC       (DHDPR), catalyzing the conversion of dihydrodipicolinate to
CC       tetrahydrodipicolinate. However, it was shown in E.coli that the
CC       substrate of the enzymatic reaction is not dihydrodipicolinate (DHDP)
CC       but in fact (2S,4S)-4-hydroxy-2,3,4,5-tetrahydrodipicolinic acid
CC       (HTPA), the product released by the DapA-catalyzed reaction.
CC       {ECO:0000305}.
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DR   EMBL; AE006468; AAL19028.1; -; Genomic_DNA.
DR   RefSeq; NP_459069.1; NC_003197.2.
DR   RefSeq; WP_000544031.1; NC_003197.2.
DR   AlphaFoldDB; Q8ZRX8; -.
DR   SMR; Q8ZRX8; -.
DR   STRING; 99287.STM0064; -.
DR   PaxDb; Q8ZRX8; -.
DR   EnsemblBacteria; AAL19028; AAL19028; STM0064.
DR   GeneID; 1251582; -.
DR   KEGG; stm:STM0064; -.
DR   PATRIC; fig|99287.12.peg.66; -.
DR   HOGENOM; CLU_047479_2_1_6; -.
DR   OMA; HHPNKAD; -.
DR   PhylomeDB; Q8ZRX8; -.
DR   BioCyc; SENT99287:STM0064-MON; -.
DR   UniPathway; UPA00034; UER00018.
DR   Proteomes; UP000001014; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0008839; F:4-hydroxy-tetrahydrodipicolinate reductase; IBA:GO_Central.
DR   GO; GO:0051287; F:NAD binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0050661; F:NADP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0016726; F:oxidoreductase activity, acting on CH or CH2 groups, NAD or NADP as acceptor; IEA:UniProtKB-UniRule.
DR   GO; GO:0019877; P:diaminopimelate biosynthetic process; IBA:GO_Central.
DR   GO; GO:0009089; P:lysine biosynthetic process via diaminopimelate; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00102; DapB; 1.
DR   InterPro; IPR022663; DapB_C.
DR   InterPro; IPR000846; DapB_N.
DR   InterPro; IPR022664; DapB_N_CS.
DR   InterPro; IPR023940; DHDPR_bac.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   PANTHER; PTHR20836; PTHR20836; 1.
DR   Pfam; PF05173; DapB_C; 1.
DR   Pfam; PF01113; DapB_N; 1.
DR   PIRSF; PIRSF000161; DHPR; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   TIGRFAMs; TIGR00036; dapB; 1.
DR   PROSITE; PS01298; DAPB; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; Diaminopimelate biosynthesis;
KW   Lysine biosynthesis; NAD; NADP; Oxidoreductase; Reference proteome.
FT   CHAIN           1..273
FT                   /note="4-hydroxy-tetrahydrodipicolinate reductase"
FT                   /id="PRO_0000141482"
FT   ACT_SITE        159
FT                   /note="Proton donor/acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT   ACT_SITE        163
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT   BINDING         12..17
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT   BINDING         38
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT   BINDING         39
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT   BINDING         102..104
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT   BINDING         126..129
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT   BINDING         160
FT                   /ligand="(S)-2,3,4,5-tetrahydrodipicolinate"
FT                   /ligand_id="ChEBI:CHEBI:16845"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT   BINDING         169..170
FT                   /ligand="(S)-2,3,4,5-tetrahydrodipicolinate"
FT                   /ligand_id="ChEBI:CHEBI:16845"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
SQ   SEQUENCE   273 AA;  28851 MW;  70DC2B8D606F84D6 CRC64;
     MHEAQIRVAI AGAGGRMGRQ LIQAAMAMEG VQLGAALERE GSSLLGSDAG ELAGAGKSGV
     IVQSSLEAVK DDFDVFIDFT RPEGTLTHLA FCRQHGKGMV IGTTGFDDAG KQAIREASQE
     IAIVFAANFS VGVNVMLKLL EKAAKVMGDY SDIEIIEAHH RHKVDAPSGT ALAMGEAIAG
     ALDKNLKDCA VYSREGYTGE RVAGTIGFAT VRAGDIVGEH TAMFADIGER VEITHKASSR
     MTFANGALRS ALWLKTKKNG LFDMRDVLGL DVL
 
 
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