ID A0A1B1S9G7_9BACT Unreviewed; 294 AA.
AC A0A1B1S9G7; A0A1Z2XJ75;
DT 02-NOV-2016, integrated into UniProtKB/TrEMBL.
DT 02-NOV-2016, sequence version 1.
DT 27-MAR-2024, entry version 37.
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 ORFNames=A4V02_06705 {ECO:0000313|EMBL:ANU63440.1}, E5333_05110
GN {ECO:0000313|EMBL:TGY75010.1};
OS Muribaculum intestinale.
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Muribaculaceae;
OC Muribaculum.
OX NCBI_TaxID=1796646 {ECO:0000313|EMBL:ANU63440.1, ECO:0000313|Proteomes:UP000186351};
RN [1] {ECO:0000313|Proteomes:UP000186351}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=YL27 {ECO:0000313|Proteomes:UP000186351};
RA Uchimura Y., Wyss M., Brugiroux S., Limenitakis J.P., Stecher B.,
RA McCoy K.D., Macpherson A.J.;
RT "Complete Genome Sequences of Twelve Strains of a Stable Defined Moderately
RT Diverse Mouse Microbiota 2 (sDMDMm2).";
RL Submitted (APR-2016) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ANU63440.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=YL27 {ECO:0000313|EMBL:ANU63440.1};
RA Uchimura Y., Wyss M., Brugiroux S., Limenitakis J.P., Stecher B.,
RA McCoy K.D., Macpherson A.J.;
RT "Complete Genome Sequences of Twelve Strains of a Stable Defined Moderately
RT Diverse Mouse Microbiota 2 (sDMDMm2).";
RL Submitted (APR-2017) to the EMBL/GenBank/DDBJ databases.
RN [3] {ECO:0000313|EMBL:TGY75010.1, ECO:0000313|Proteomes:UP000306630}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NM06_A21 {ECO:0000313|EMBL:TGY75010.1,
RC ECO:0000313|Proteomes:UP000306630};
RA Navarre W., Wong E., Huang K., Tropini C., Ng K., Yu B.;
RT "Microbes associate with the intestines of laboratory mice.";
RL Submitted (APR-2019) 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; CP015402; ANU63440.1; -; Genomic_DNA.
DR EMBL; SRYD01000015; TGY75010.1; -; Genomic_DNA.
DR RefSeq; WP_068960766.1; NZ_WVUM01000006.1.
DR AlphaFoldDB; A0A1B1S9G7; -.
DR STRING; 1796646.A4V02_06705; -.
DR GeneID; 65536542; -.
DR KEGG; pary:A4V02_06705; -.
DR OrthoDB; 9782828at2; -.
DR UniPathway; UPA00034; UER00017.
DR Proteomes; UP000186351; Chromosome.
DR Proteomes; UP000306630; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
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 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; 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}; Membrane {ECO:0000256|SAM:Phobius};
KW Reference proteome {ECO:0000313|Proteomes:UP000186351};
KW Schiff base {ECO:0000256|ARBA:ARBA00023270, ECO:0000256|HAMAP-
KW Rule:MF_00418}; Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 195..215
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT ACT_SITE 137
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 49
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 48
FT /note="Part of a proton relay during catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418"
FT SITE 111
FT /note="Part of a proton relay during catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00418"
SQ SEQUENCE 294 AA; 32196 MW; 55F6F4E78E1BAA3C CRC64;
MARINLTGMG VALVTPFKHD KSIDYNALAR LLEYQIKNGV DYLVVLGTTA ETATLTSGEK
AELREFIAER VAGRVPLVIG VGGNNTMALV EELNTIDLTP FSAVLSVVPY YNKPSQEGVY
QHYKAIAEAS PIPVILYNVP GRTGVNMTAE TTLRLAREFG NIIGVKEASG NINQMDDIIK
NKPSDFMVIS GDDGITFPLL TLGAVGVISV IGNAFPREFS RMVRLALEGD YQRALTIHHR
FTELFSLLFV DGNPAGVKCL LHAMGFIENE LRLPLVPTRI TTYERIRQVL DSLG
//