ID Q6D7R3_PECAS Unreviewed; 292 AA.
AC Q6D7R3;
DT 16-AUG-2004, integrated into UniProtKB/TrEMBL.
DT 16-AUG-2004, sequence version 1.
DT 27-MAR-2024, entry version 123.
DE RecName: Full=4-hydroxy-tetrahydrodipicolinate synthase {ECO:0000256|ARBA:ARBA00012086, ECO:0000256|HAMAP-Rule:MF_00418};
DE Short=HTPA synthase {ECO:0000256|HAMAP-Rule:MF_00418};
DE EC=4.3.3.7 {ECO:0000256|ARBA:ARBA00012086, ECO:0000256|HAMAP-Rule:MF_00418};
GN Name=dapA {ECO:0000256|HAMAP-Rule:MF_00418,
GN ECO:0000313|EMBL:CAG74172.1};
GN OrderedLocusNames=ECA1262 {ECO:0000313|EMBL:CAG74172.1};
OS Pectobacterium atrosepticum (strain SCRI 1043 / ATCC BAA-672) (Erwinia
OS carotovora subsp. atroseptica).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Pectobacteriaceae; Pectobacterium.
OX NCBI_TaxID=218491 {ECO:0000313|EMBL:CAG74172.1, ECO:0000313|Proteomes:UP000007966};
RN [1] {ECO:0000313|EMBL:CAG74172.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=SCRI1043 {ECO:0000313|EMBL:CAG74172.1};
RA Bell K.S., Sebaihia M., Pritchard L., Holden M., Hyman L.J., Holeva M.C.,
RA Thomson N.R., Bentley S.D., Churcher C., Mungall K., Atkin R., Bason N.,
RA Brooks K., Chillingworth T., Clark K., Doggett J., Fraser A., Hance Z.,
RA Hauser H., Jagels K., Moule S., Norbertczak H., Ormond D., Price C.,
RA Quail M.A., Sanders M., Walker D., Whitehead S., Salmond G.P.C.,
RA Birch P.R.J., Barrell B.G., Parkhill J., Toth I.K.;
RT "The genome sequence of the enterobacterial phytopathogen Erwinia
RT carotovora subsp. atroseptica SCRI1043 and functional genomic
RT identification of novel virulence factors.";
RL Submitted (FEB-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the condensation of (S)-aspartate-beta-semialdehyde
CC [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolinate (HTPA).
CC {ECO:0000256|ARBA:ARBA00003294, ECO:0000256|HAMAP-Rule:MF_00418}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-aspartate 4-semialdehyde + pyruvate = (2S,4S)-4-
CC hydroxy-2,3,4,5-tetrahydrodipicolinate + H(+) + H2O;
CC Xref=Rhea:RHEA:34171, ChEBI:CHEBI:15361, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:67139, ChEBI:CHEBI:537519; EC=4.3.3.7;
CC Evidence={ECO:0000256|ARBA:ARBA00000594, ECO:0000256|HAMAP-
CC 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:0000256|ARBA:ARBA00005120, ECO:0000256|HAMAP-Rule:MF_00418}.
CC -!- SUBUNIT: Homotetramer; dimer of dimers. {ECO:0000256|HAMAP-
CC Rule:MF_00418}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00418}.
CC -!- SIMILARITY: Belongs to the DapA family. {ECO:0000256|HAMAP-
CC Rule:MF_00418, ECO:0000256|PIRNR:PIRNR001365}.
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:0000256|HAMAP-Rule:MF_00418}.
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DR EMBL; BX950851; CAG74172.1; -; Genomic_DNA.
DR RefSeq; WP_011092851.1; NC_004547.2.
DR AlphaFoldDB; Q6D7R3; -.
DR STRING; 218491.ECA1262; -.
DR GeneID; 57208072; -.
DR KEGG; eca:ECA1262; -.
DR PATRIC; fig|218491.5.peg.1285; -.
DR eggNOG; COG0329; Bacteria.
DR HOGENOM; CLU_049343_7_1_6; -.
DR OrthoDB; 9782828at2; -.
DR UniPathway; UPA00034; UER00017.
DR Proteomes; UP000007966; 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; Aldolase class I; 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 NCBIfam; TIGR00674; dapA; 1.
DR PANTHER; PTHR12128:SF72; 4-HYDROXY-2-OXOGLUTARATE ALDOLASE, MITOCHONDRIAL; 1.
DR PANTHER; PTHR12128; DIHYDRODIPICOLINATE SYNTHASE; 1.
DR Pfam; PF00701; DHDPS; 1.
DR PIRSF; PIRSF001365; DHDPS; 1.
DR PRINTS; PR00146; DHPICSNTHASE.
DR SMART; SM01130; DHDPS; 1.
DR SUPFAM; SSF51569; Aldolase; 1.
DR PROSITE; PS00665; DHDPS_1; 1.
DR PROSITE; PS00666; DHDPS_2; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_00418};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00418};
KW Diaminopimelate biosynthesis {ECO:0000256|ARBA:ARBA00022915,
KW ECO:0000256|HAMAP-Rule:MF_00418};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00418};
KW Lysine biosynthesis {ECO:0000256|ARBA:ARBA00023154, ECO:0000256|HAMAP-
KW Rule:MF_00418}; Reference proteome {ECO:0000313|Proteomes:UP000007966};
KW Schiff base {ECO:0000256|ARBA:ARBA00023270, ECO:0000256|HAMAP-
KW Rule:MF_00418}.
FT ACT_SITE 133
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418,
FT ECO:0000256|PIRSR:PIRSR001365-1"
FT ACT_SITE 161
FT /note="Schiff-base intermediate with substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418,
FT ECO:0000256|PIRSR:PIRSR001365-1"
FT BINDING 45
FT /ligand="pyruvate"
FT /ligand_id="ChEBI:CHEBI:15361"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418,
FT ECO:0000256|PIRSR:PIRSR001365-2"
FT BINDING 203
FT /ligand="pyruvate"
FT /ligand_id="ChEBI:CHEBI:15361"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418,
FT ECO:0000256|PIRSR:PIRSR001365-2"
FT SITE 44
FT /note="Part of a proton relay during catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418"
FT SITE 107
FT /note="Part of a proton relay during catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418"
SQ SEQUENCE 292 AA; 31167 MW; 9A35D2EC3C67B7AF CRC64;
MFTGSIVALV TPMDAKGAVD RASLKKLIDY HVASGTSAIV SVGTTGESAT LSHDEHGDVV
LLTLELSDGR IPVIAGTGAN ATAEGVSLTK RFHGTGVVGC LTVTPYYNKP TQEGLYQHFK
AIAEHTDLPQ ILYNVPSRTG CDMLPETVAR LSEVKNIVAI KEATGNLSRV SQIQELVSED
FILLSGDDAS GLDFMQLGGK GVISVTANIA AREMAELCRL AAQGNFVEAR RLNQRLMPLH
QKLFVEPNPI PVKWACKELG LMATDTLRLP MTPLTDSGRT VMGQALKQAG LL
//
