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Database: UniProt
Entry: A0A1G6UTR8_9PROT
LinkDB: A0A1G6UTR8_9PROT
Original site: A0A1G6UTR8_9PROT 
ID   A0A1G6UTR8_9PROT        Unreviewed;       246 AA.
AC   A0A1G6UTR8;
DT   22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT   22-NOV-2017, sequence version 1.
DT   08-MAY-2019, entry version 7.
DE   RecName: Full=4-hydroxy-tetrahydrodipicolinate reductase {ECO:0000256|HAMAP-Rule:MF_00102, ECO:0000256|SAAS:SAAS01081423};
DE            Short=HTPA reductase {ECO:0000256|HAMAP-Rule:MF_00102};
DE            EC=1.17.1.8 {ECO:0000256|HAMAP-Rule:MF_00102, ECO:0000256|SAAS:SAAS01081445};
GN   Name=dapB {ECO:0000256|HAMAP-Rule:MF_00102};
GN   ORFNames=SAMN04487779_100823 {ECO:0000313|EMBL:SDD44800.1};
OS   Belnapia rosea.
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Acetobacteraceae; Belnapia.
OX   NCBI_TaxID=938405 {ECO:0000313|EMBL:SDD44800.1, ECO:0000313|Proteomes:UP000198925};
RN   [1] {ECO:0000313|EMBL:SDD44800.1, ECO:0000313|Proteomes:UP000198925}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CPCC 100156 {ECO:0000313|EMBL:SDD44800.1,
RC   ECO:0000313|Proteomes:UP000198925};
RA   de Groot N.N.;
RL   Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the conversion of 4-hydroxy-
CC       tetrahydrodipicolinate (HTPA) to tetrahydrodipicolinate.
CC       {ECO:0000256|HAMAP-Rule:MF_00102, ECO:0000256|SAAS:SAAS01081415}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-2,3,4,5-tetrahydrodipicolinate + H2O + NAD(+) =
CC         (2S,4S)-4-hydroxy-2,3,4,5-tetrahydrodipicolinate + H(+) + NADH;
CC         Xref=Rhea:RHEA:35323, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:16845, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945,
CC         ChEBI:CHEBI:67139; EC=1.17.1.8; Evidence={ECO:0000256|HAMAP-
CC         Rule:MF_00102, ECO:0000256|SAAS:SAAS01117954};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-2,3,4,5-tetrahydrodipicolinate + H2O + NADP(+) =
CC         (2S,4S)-4-hydroxy-2,3,4,5-tetrahydrodipicolinate + H(+) + NADPH;
CC         Xref=Rhea:RHEA:35331, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:16845, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349,
CC         ChEBI:CHEBI:67139; EC=1.17.1.8; Evidence={ECO:0000256|HAMAP-
CC         Rule:MF_00102, ECO:0000256|SAAS:SAAS01117970};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-lysine biosynthesis via DAP
CC       pathway; (S)-tetrahydrodipicolinate from L-aspartate: step 4/4.
CC       {ECO:0000256|HAMAP-Rule:MF_00102, ECO:0000256|SAAS:SAAS01081412}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_00102}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00102,
CC       ECO:0000256|SAAS:SAAS01081435}.
CC   -!- SIMILARITY: Belongs to the DapB family. {ECO:0000256|HAMAP-
CC       Rule:MF_00102, ECO:0000256|SAAS:SAAS01081404}.
CC   -!- CAUTION: Lacks conserved residue(s) required for the propagation
CC       of feature annotation. {ECO:0000256|HAMAP-Rule:MF_00102}.
CC   -!- CAUTION: Was originally thought to be a dihydrodipicolinate
CC       reductase (DHDPR), catalyzing the conversion of
CC       dihydrodipicolinate to tetrahydrodipicolinate. However, it was
CC       shown in E.coli that the substrate of the enzymatic reaction is
CC       not dihydrodipicolinate (DHDP) but in fact (2S,4S)-4-hydroxy-
CC       2,3,4,5-tetrahydrodipicolinic acid (HTPA), the product released by
CC       the DapA-catalyzed reaction. {ECO:0000256|HAMAP-Rule:MF_00102}.
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DR   EMBL; FMZX01000008; SDD44800.1; -; Genomic_DNA.
DR   UniPathway; UPA00034; UER00018.
DR   Proteomes; UP000198925; Unassembled WGS sequence.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0008839; F:4-hydroxy-tetrahydrodipicolinate reductase; IEA:UniProtKB-EC.
DR   GO; GO:0051287; F:NAD binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0050661; F:NADP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0016726; F:oxidoreductase activity, acting on CH or CH2 groups, NAD or NADP as acceptor; 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-UniRule.
DR   HAMAP; MF_00102; DapB; 1.
DR   InterPro; IPR022663; DapB_C.
DR   InterPro; IPR000846; DapB_N.
DR   InterPro; IPR022664; DapB_N_CS.
DR   InterPro; IPR023940; DHDPR_bac.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   PANTHER; PTHR20836; PTHR20836; 1.
DR   Pfam; PF05173; DapB_C; 1.
DR   Pfam; PF01113; DapB_N; 1.
DR   PIRSF; PIRSF000161; DHPR; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   TIGRFAMs; TIGR00036; dapB; 1.
DR   PROSITE; PS01298; DAPB; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis {ECO:0000256|HAMAP-Rule:MF_00102,
KW   ECO:0000256|SAAS:SAAS01081390};
KW   Complete proteome {ECO:0000313|Proteomes:UP000198925};
KW   Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00102,
KW   ECO:0000256|SAAS:SAAS01081408};
KW   Diaminopimelate biosynthesis {ECO:0000256|HAMAP-Rule:MF_00102,
KW   ECO:0000256|SAAS:SAAS01081418};
KW   Lysine biosynthesis {ECO:0000256|HAMAP-Rule:MF_00102,
KW   ECO:0000256|SAAS:SAAS01081406};
KW   NAD {ECO:0000256|HAMAP-Rule:MF_00102, ECO:0000256|SAAS:SAAS01081420};
KW   NADP {ECO:0000256|HAMAP-Rule:MF_00102, ECO:0000256|SAAS:SAAS00333002};
KW   Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_00102,
KW   ECO:0000256|SAAS:SAAS00333034};
KW   Reference proteome {ECO:0000313|Proteomes:UP000198925}.
FT   DOMAIN        3    102       DapB_N. {ECO:0000259|Pfam:PF01113}.
FT   DOMAIN      105    243       DapB_C. {ECO:0000259|Pfam:PF05173}.
FT   NP_BIND       9     14       NAD(P). {ECO:0000256|HAMAP-Rule:
FT                                MF_00102}.
FT   NP_BIND      75     77       NAD(P). {ECO:0000256|HAMAP-Rule:
FT                                MF_00102}.
FT   NP_BIND      99    102       NAD(P). {ECO:0000256|HAMAP-Rule:
FT                                MF_00102}.
FT   REGION      143    144       Substrate binding. {ECO:0000256|HAMAP-
FT                                Rule:MF_00102}.
FT   ACT_SITE    133    133       Proton donor/acceptor.
FT                                {ECO:0000256|HAMAP-Rule:MF_00102}.
FT   ACT_SITE    137    137       Proton donor. {ECO:0000256|HAMAP-Rule:
FT                                MF_00102}.
FT   BINDING      35     35       NADP. {ECO:0000256|HAMAP-Rule:MF_00102}.
FT   BINDING     134    134       Substrate. {ECO:0000256|HAMAP-Rule:
FT                                MF_00102}.
SQ   SEQUENCE   246 AA;  24992 MW;  484B02B9CC5D7AD0 CRC64;
     MSIRIGIAGI AGRMGRLLAE EVEAAGAMLA GGLRRGEDPA ALFAASDVVI DFTHAGTAEA
     HAAAAMTAGK PLVLGSSGLS AAQEAAVAAA AGTVPIVYAA NFATGVNLVL AMAERMAAAL
     PATQYDAEIL EMHHRQKVDA PSGTAVALGR AVARGRGTTL EEAGRESGRD GHCGARGTGT
     IGFAALRGGQ VVGEHSLIFA AGAEQIILTH RSFDRRAYAT GAVRAALWLQ GRAPGLYDMQ
     HVLGMI
//
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