DAPB_HERAR
ID DAPB_HERAR Reviewed; 268 AA.
AC A4G8E2;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 17-APR-2007, sequence version 1.
DT 03-AUG-2022, entry version 98.
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=HEAR2657;
OS Herminiimonas arsenicoxydans.
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Oxalobacteraceae; Herminiimonas.
OX NCBI_TaxID=204773;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ULPAs1;
RX PubMed=17432936; DOI=10.1371/journal.pgen.0030053;
RA Muller D., Medigue C., Koechler S., Barbe V., Barakat M., Talla E.,
RA Bonnefoy V., Krin E., Arsene-Ploetze F., Carapito C., Chandler M.,
RA Cournoyer B., Cruveiller S., Dossat C., Duval S., Heymann M., Leize E.,
RA Lieutaud A., Lievremont D., Makita Y., Mangenot S., Nitschke W., Ortet P.,
RA Perdrial N., Schoepp B., Siguier P., Simeonova D.D., Rouy Z., Segurens B.,
RA Turlin E., Vallenet D., van Dorsselaer A., Weiss S., Weissenbach J.,
RA Lett M.-C., Danchin A., Bertin P.N.;
RT "A tale of two oxidation states: bacterial colonization of arsenic-rich
RT environments.";
RL PLoS Genet. 3:518-530(2007).
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 -!- 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; CU207211; CAL62779.1; -; Genomic_DNA.
DR RefSeq; WP_011872037.1; NC_009138.1.
DR AlphaFoldDB; A4G8E2; -.
DR SMR; A4G8E2; -.
DR STRING; 204773.HEAR2657; -.
DR EnsemblBacteria; CAL62779; CAL62779; HEAR2657.
DR KEGG; har:HEAR2657; -.
DR eggNOG; COG0289; Bacteria.
DR HOGENOM; CLU_047479_2_1_4; -.
DR OMA; HHPNKAD; -.
DR OrthoDB; 803114at2; -.
DR UniPathway; UPA00034; UER00018.
DR Proteomes; UP000006697; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008839; F:4-hydroxy-tetrahydrodipicolinate reductase; IEA:UniProtKB-EC.
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; IEA:UniProtKB-UniRule.
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..268
FT /note="4-hydroxy-tetrahydrodipicolinate reductase"
FT /id="PRO_1000057686"
FT ACT_SITE 156
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT ACT_SITE 160
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT BINDING 10..15
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT BINDING 36
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT BINDING 99..101
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT BINDING 123..126
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT BINDING 157
FT /ligand="(S)-2,3,4,5-tetrahydrodipicolinate"
FT /ligand_id="ChEBI:CHEBI:16845"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT BINDING 166..167
FT /ligand="(S)-2,3,4,5-tetrahydrodipicolinate"
FT /ligand_id="ChEBI:CHEBI:16845"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
SQ SEQUENCE 268 AA; 27911 MW; 4B3DCBEA45C82EB0 CRC64;
MNQMKIAVAG ASGRMGHMLI EAILNAADAT LSGALDIATS PAIGTDAAAF LGKPSGVLIE
SDLAKGLANA DFLIDFTRPE GTLKHLEYCA AHGIKMIIGT TGFDVAGKAA IAAAAEKTAI
MFAPNMSVGV NVTMKLLEMA AQNFSEGYDI EIIEAHHRNK VDAPSGTAIK MGEVIAGALG
KELNDVAVWA REGVTGARDP SSIGFATVRG GDIIGDHTVL FAGDGERIEI SHKSSSRVSY
AHGSLRAARF LADKKTGLYD MQDVLGLR
