ID B7KVC7_METC4 Unreviewed; 296 AA.
AC B7KVC7;
DT 10-FEB-2009, integrated into UniProtKB/TrEMBL.
DT 10-FEB-2009, sequence version 1.
DT 27-MAR-2024, entry version 91.
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 OrderedLocusNames=Mchl_3515 {ECO:0000313|EMBL:ACK84335.1};
OS Methylorubrum extorquens (strain CM4 / NCIMB 13688) (Methylobacterium
OS extorquens).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Methylobacteriaceae; Methylorubrum.
OX NCBI_TaxID=440085 {ECO:0000313|EMBL:ACK84335.1, ECO:0000313|Proteomes:UP000002385};
RN [1] {ECO:0000313|Proteomes:UP000002385}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CM4 / NCIMB 13688 {ECO:0000313|Proteomes:UP000002385};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C.,
RA Han C., Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N.,
RA Marx C., Richardson P.;
RT "Complete sequence of chromosome of Methylobacterium chloromethanicum
RT CM4.";
RL Submitted (DEC-2008) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ACK84335.1, ECO:0000313|Proteomes:UP000002385}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CM4 / NCIMB 13688 {ECO:0000313|Proteomes:UP000002385};
RX PubMed=22887658; DOI=10.1128/JB.01009-12;
RA Marx C.J., Bringel F., Chistoserdova L., Moulin L., Farhan Ul Haque M.,
RA Fleischman D.E., Gruffaz C., Jourand P., Knief C., Lee M.C., Muller E.E.,
RA Nadalig T., Peyraud R., Roselli S., Russ L., Goodwin L.A., Ivanova N.,
RA Kyrpides N., Lajus A., Land M.L., Medigue C., Mikhailova N., Nolan M.,
RA Woyke T., Stolyar S., Vorholt J.A., Vuilleumier S.;
RT "Complete genome sequences of six strains of the genus Methylobacterium.";
RL J. Bacteriol. 194:4746-4748(2012).
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; CP001298; ACK84335.1; -; Genomic_DNA.
DR RefSeq; WP_015823401.1; NC_011757.1.
DR AlphaFoldDB; B7KVC7; -.
DR GeneID; 72990836; -.
DR KEGG; mch:Mchl_3515; -.
DR HOGENOM; CLU_049343_7_1_5; -.
DR UniPathway; UPA00034; UER00017.
DR Proteomes; UP000002385; 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};
KW Schiff base {ECO:0000256|ARBA:ARBA00023270, ECO:0000256|HAMAP-
KW Rule:MF_00418}.
FT ACT_SITE 138
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418,
FT ECO:0000256|PIRSR:PIRSR001365-1"
FT ACT_SITE 166
FT /note="Schiff-base intermediate with substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418,
FT ECO:0000256|PIRSR:PIRSR001365-1"
FT BINDING 50
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 208
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 49
FT /note="Part of a proton relay during catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418"
FT SITE 112
FT /note="Part of a proton relay during catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418"
SQ SEQUENCE 296 AA; 31782 MW; 684ADAA14F07B064 CRC64;
MTDTHARLRG SMTALATPFR DGEFDELAFR KFVNWQIDQG THALVPTGTT GESPTLSHTE
HDRVVEVCVA EAAGRVPVIA GAGSNSTREA VARARHAESV GADAVLTVTP YYNKPTQEGM
YAHFKAVNDA VGIPIIIYNI PGRSVVDMSV DTMKRLFELK NIAGVKDATA KIDRVSLQRQ
ALGEDFIQLS GEDATALGFN AHGGVGCISV VSNVAPRLCA DLQEATLAGD YAKALKIQDR
LMPLHVQMFY ESNPVPAKYA LSRLGLMSEE VRLPLVPATE GCRRAVDAAL SHAGLI
//
