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Entry: R6G880_9FIRM
LinkDB: R6G880_9FIRM
Original site: R6G880_9FIRM 
ID   R6G880_9FIRM            Unreviewed;       251 AA.
AC   R6G880;
DT   24-JUL-2013, integrated into UniProtKB/TrEMBL.
DT   24-JUL-2013, sequence version 1.
DT   08-MAY-2019, entry version 32.
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=BN690_01869 {ECO:0000313|EMBL:CDB20515.1};
OS   Blautia sp. CAG:52.
OC   Bacteria; Firmicutes; Clostridia; Clostridiales; Lachnospiraceae;
OC   Blautia; environmental samples.
OX   NCBI_TaxID=1262758 {ECO:0000313|EMBL:CDB20515.1, ECO:0000313|Proteomes:UP000018177};
RN   [1] {ECO:0000313|EMBL:CDB20515.1, ECO:0000313|Proteomes:UP000018177}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MGS:52 {ECO:0000313|Proteomes:UP000018177};
RA   Nielsen H.B., Almeida M., Juncker A.S., Rasmussen S., Li J.,
RA   Sunagawa S., Plichta D., Gautier L., Le Chatelier E., Peletier E.,
RA   Bonde I., Nielsen T., Manichanh C., Arumugam M., Batto J.,
RA   Santos M.B.Q.D., Blom N., Borruel N., Burgdorf K.S., Boumezbeur F.,
RA   Casellas F., Dore J., Guarner F., Hansen T., Hildebrand F., Kaas R.S.,
RA   Kennedy S., Kristiansen K., Kultima J.R., Leonard P., Levenez F.,
RA   Lund O., Moumen B., Le Paslier D., Pons N., Pedersen O., Prifti E.,
RA   Qin J., Raes J., Tap J., Tims S., Ussery D.W., Yamada T.,
RA   MetaHit consortium, Renault P., Sicheritz-Ponten T., Bork P., Wang J.,
RA   Brunak S., Ehrlich S.D.;
RT   "Dependencies among metagenomic species, viruses, plasmids and units
RT   of genetic variation.";
RL   Submitted (NOV-2012) 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: The sequence shown here is derived from an
CC       EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is
CC       preliminary data. {ECO:0000313|EMBL:CDB20515.1}.
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; CBDE010000125; CDB20515.1; -; Genomic_DNA.
DR   UniPathway; UPA00034; UER00018.
DR   Proteomes; UP000018177; 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:UP000018177};
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:UP000018177}.
FT   DOMAIN        2    112       DapB_N. {ECO:0000259|Pfam:PF01113}.
FT   DOMAIN      115    250       DapB_C. {ECO:0000259|Pfam:PF05173}.
FT   NP_BIND       8     13       NAD(P). {ECO:0000256|HAMAP-Rule:
FT                                MF_00102}.
FT   NP_BIND      85     87       NAD(P). {ECO:0000256|HAMAP-Rule:
FT                                MF_00102}.
FT   NP_BIND     109    112       NAD(P). {ECO:0000256|HAMAP-Rule:
FT                                MF_00102}.
FT   REGION      153    154       Substrate binding. {ECO:0000256|HAMAP-
FT                                Rule:MF_00102}.
FT   ACT_SITE    143    143       Proton donor/acceptor.
FT                                {ECO:0000256|HAMAP-Rule:MF_00102}.
FT   ACT_SITE    147    147       Proton donor. {ECO:0000256|HAMAP-Rule:
FT                                MF_00102}.
FT   BINDING      34     34       NAD. {ECO:0000256|HAMAP-Rule:MF_00102}.
FT   BINDING      39     39       NADP. {ECO:0000256|HAMAP-Rule:MF_00102}.
FT   BINDING     144    144       Substrate. {ECO:0000256|HAMAP-Rule:
FT                                MF_00102}.
SQ   SEQUENCE   251 AA;  27632 MW;  5780F3FC9550741B CRC64;
     MVKVIMHGCN GHMGQVITQL VEKDPEIEIV AGIDLNDCRD NGYPVFTDIW TCDVQADAVI
     DFCTAKATDT LLEYCEKRQI PVVLCTTGLT DEQIKKVEET SKHVAVLKSA NMSLGINLLM
     KLVKEAAQTL AAAGFDMEIV EKHHRLKVDA PSGTALALAD SLNEGLDNAY HYTFDRSQRR
     EQRDDKEIGI SAVRGGTIVG EHDVIFAGDD EVITFQHTAY SKKLFAKGAI QAAKFLKGKE
     PGWYQMSDVI G
//
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