DAPA_THEAB
ID DAPA_THEAB Reviewed; 293 AA.
AC B7IF13;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-FEB-2009, sequence version 1.
DT 03-AUG-2022, entry version 86.
DE RecName: Full=4-hydroxy-tetrahydrodipicolinate synthase {ECO:0000255|HAMAP-Rule:MF_00418};
DE Short=HTPA synthase {ECO:0000255|HAMAP-Rule:MF_00418};
DE EC=4.3.3.7 {ECO:0000255|HAMAP-Rule:MF_00418};
GN Name=dapA {ECO:0000255|HAMAP-Rule:MF_00418}; OrderedLocusNames=THA_172;
OS Thermosipho africanus (strain TCF52B).
OC Bacteria; Thermotogae; Thermotogales; Fervidobacteriaceae; Thermosipho.
OX NCBI_TaxID=484019;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TCF52B;
RX PubMed=19124572; DOI=10.1128/jb.01448-08;
RA Nesboe C.L., Bapteste E., Curtis B., Dahle H., Lopez P., Macleod D.,
RA Dlutek M., Bowman S., Zhaxybayeva O., Birkeland N.-K., Doolittle W.F.;
RT "The genome of Thermosipho africanus TCF52B: lateral genetic connections to
RT the Firmicutes and Archaea.";
RL J. Bacteriol. 191:1974-1978(2009).
CC -!- FUNCTION: Catalyzes the condensation of (S)-aspartate-beta-semialdehyde
CC [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolinate (HTPA).
CC {ECO:0000255|HAMAP-Rule:MF_00418}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-aspartate 4-semialdehyde + pyruvate = (2S,4S)-4-hydroxy-
CC 2,3,4,5-tetrahydrodipicolinate + H(+) + H2O; Xref=Rhea:RHEA:34171,
CC ChEBI:CHEBI:15361, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:67139, ChEBI:CHEBI:537519; EC=4.3.3.7;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00418};
CC -!- PATHWAY: Amino-acid biosynthesis; L-lysine biosynthesis via DAP
CC pathway; (S)-tetrahydrodipicolinate from L-aspartate: step 3/4.
CC {ECO:0000255|HAMAP-Rule:MF_00418}.
CC -!- SUBUNIT: Homotetramer; dimer of dimers. {ECO:0000255|HAMAP-
CC Rule:MF_00418}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00418}.
CC -!- SIMILARITY: Belongs to the DapA family. {ECO:0000255|HAMAP-
CC Rule:MF_00418}.
CC -!- CAUTION: Was originally thought to be a dihydrodipicolinate synthase
CC (DHDPS), catalyzing the condensation of (S)-aspartate-beta-semialdehyde
CC [(S)-ASA] and pyruvate to dihydrodipicolinate (DHDP). However, it was
CC shown in E.coli that the product of the enzymatic reaction is not
CC dihydrodipicolinate but in fact (4S)-4-hydroxy-2,3,4,5-tetrahydro-(2S)-
CC dipicolinic acid (HTPA), and that the consecutive dehydration reaction
CC leading to DHDP is not spontaneous but catalyzed by DapB.
CC {ECO:0000305}.
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DR EMBL; CP001185; ACJ74677.1; -; Genomic_DNA.
DR RefSeq; WP_012579388.1; NC_011653.1.
DR AlphaFoldDB; B7IF13; -.
DR SMR; B7IF13; -.
DR STRING; 484019.THA_172; -.
DR EnsemblBacteria; ACJ74677; ACJ74677; THA_172.
DR KEGG; taf:THA_172; -.
DR eggNOG; COG0329; Bacteria.
DR HOGENOM; CLU_049343_7_0_0; -.
DR OMA; GMDACVP; -.
DR OrthoDB; 1438588at2; -.
DR UniPathway; UPA00034; UER00017.
DR Proteomes; UP000002453; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008840; F:4-hydroxy-tetrahydrodipicolinate synthase activity; 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-UniPathway.
DR CDD; cd00950; DHDPS; 1.
DR Gene3D; 3.20.20.70; -; 1.
DR HAMAP; MF_00418; DapA; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR005263; DapA.
DR InterPro; IPR002220; DapA-like.
DR InterPro; IPR020625; Schiff_base-form_aldolases_AS.
DR InterPro; IPR020624; Schiff_base-form_aldolases_CS.
DR PANTHER; PTHR12128; PTHR12128; 1.
DR Pfam; PF00701; DHDPS; 1.
DR PIRSF; PIRSF001365; DHDPS; 1.
DR PRINTS; PR00146; DHPICSNTHASE.
DR SMART; SM01130; DHDPS; 1.
DR TIGRFAMs; TIGR00674; dapA; 1.
DR PROSITE; PS00665; DHDPS_1; 1.
DR PROSITE; PS00666; DHDPS_2; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Cytoplasm; Diaminopimelate biosynthesis; Lyase;
KW Lysine biosynthesis; Reference proteome; Schiff base.
FT CHAIN 1..293
FT /note="4-hydroxy-tetrahydrodipicolinate synthase"
FT /id="PRO_1000124072"
FT ACT_SITE 132
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00418"
FT ACT_SITE 161
FT /note="Schiff-base intermediate with substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00418"
FT BINDING 44
FT /ligand="pyruvate"
FT /ligand_id="ChEBI:CHEBI:15361"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00418"
FT BINDING 205
FT /ligand="pyruvate"
FT /ligand_id="ChEBI:CHEBI:15361"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00418"
FT SITE 43
FT /note="Part of a proton relay during catalysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00418"
FT SITE 106
FT /note="Part of a proton relay during catalysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00418"
SQ SEQUENCE 293 AA; 32441 MW; C5374065E2284974 CRC64;
MFEGIGTAIV TPFKEGKLDI ESYEKLLNFQ INNQINAIIV LGTTGEAPNI SLDEREILIK
KAKEVSGNKA KVIVGAGSNG INHTIELIKN AEKNGADGLL IVTPYYNKPT QNGLYEYYKY
ISEHTDLEII VYNVPSRTGI NILPETVYKI ASDCKNVKAL KEANSSFEQI NKDLLLLKEL
KDFKIFSGND DTAFQLLASG GDGVISVASN IIPLQMVQMF NFIKNGEIEK ARNIHFSYYK
LFKNLFIETN PIPVKAALSI MGFINNELRL PLVPASESTM KIITETLKGC GVI
