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Database: UniProt
Entry: A0A2M9PBR4_9RHOB
LinkDB: A0A2M9PBR4_9RHOB
Original site: A0A2M9PBR4_9RHOB 
ID   A0A2M9PBR4_9RHOB        Unreviewed;       330 AA.
AC   A0A2M9PBR4;
DT   25-APR-2018, integrated into UniProtKB/TrEMBL.
DT   25-APR-2018, sequence version 1.
DT   24-JAN-2024, entry version 23.
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=CNY89_11195 {ECO:0000313|EMBL:PJN94980.1};
OS   Amaricoccus sp. HAR-UPW-R2A-40.
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC   Paracoccaceae; Amaricoccus.
OX   NCBI_TaxID=1985299 {ECO:0000313|EMBL:PJN94980.1, ECO:0000313|Proteomes:UP000232137};
RN   [1] {ECO:0000313|EMBL:PJN94980.1, ECO:0000313|Proteomes:UP000232137}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HAR-UPW-R2A-40 {ECO:0000313|EMBL:PJN94980.1,
RC   ECO:0000313|Proteomes:UP000232137};
RA   Kumari P., Krishnamurthi S.;
RT   "HAR-UPW-R2A-40 Amaricoccus sp.";
RL   Submitted (NOV-2017) 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: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC       whole genome shotgun (WGS) entry which is preliminary data.
CC       {ECO:0000313|EMBL:PJN94980.1}.
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; PHNO01000664; PJN94980.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A2M9PBR4; -.
DR   UniPathway; UPA00034; UER00017.
DR   Proteomes; UP000232137; Unassembled WGS sequence.
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   NCBIfam; TIGR00674; dapA; 1.
DR   PANTHER; PTHR12128:SF66; 4-HYDROXY-TETRAHYDRODIPICOLINATE SYNTHASE; 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|HAMAP-Rule:MF_00418, ECO:0000256|PIRNR:PIRNR001365};
KW   Lysine biosynthesis {ECO:0000256|ARBA:ARBA00023154, ECO:0000256|HAMAP-
KW   Rule:MF_00418}; Reference proteome {ECO:0000313|Proteomes:UP000232137};
KW   Schiff base {ECO:0000256|ARBA:ARBA00023270, ECO:0000256|HAMAP-
KW   Rule:MF_00418}.
FT   REGION          1..47
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        30..47
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        171
FT                   /note="Proton donor/acceptor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00418,
FT                   ECO:0000256|PIRSR:PIRSR001365-1"
FT   ACT_SITE        199
FT                   /note="Schiff-base intermediate with substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00418,
FT                   ECO:0000256|PIRSR:PIRSR001365-1"
FT   BINDING         83
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         241
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            82
FT                   /note="Part of a proton relay during catalysis"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00418"
FT   SITE            145
FT                   /note="Part of a proton relay during catalysis"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00418"
SQ   SEQUENCE   330 AA;  35743 MW;  C9E42EDB20F28C28 CRC64;
     MIRSGGPDPV RSSARGRQRG LQDGRVASNR ARHIAQESRH VQRFDHRARH PLRERKVDEK
     ALVELVEWQI AEGTHGVVPV GTTGETPTLT HDEHEHVIEV VVATAAGRIP VIAGAGSNNT
     DEAIRLMRFA KKVGADAALV VTPYYNKPNQ RGLIAHYTAL HDAVDLPIVI YNIPGRSVID
     MTPATMGELA RLPRIVGVKD ATGDVTRVSD QRAACGADFI QLSGEDASAL GFNAHGGVGC
     ISVVSNIAPR LCAEFQTATL NGDWTKALAL QDRLLPLHRA AFAEPNPGPT KYALSLLGKC
     QEEMRLPLVP IEELTRERVR AALRHAGLLN
//
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