DAPB_RIPO1
ID DAPB_RIPO1 Reviewed; 275 AA.
AC B7JW41;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-FEB-2009, sequence version 1.
DT 03-AUG-2022, entry version 71.
DE RecName: Full=4-hydroxy-tetrahydrodipicolinate reductase {ECO:0000255|HAMAP-Rule:MF_00102};
DE Short=HTPA reductase {ECO:0000255|HAMAP-Rule:MF_00102};
DE EC=1.17.1.8 {ECO:0000255|HAMAP-Rule:MF_00102};
GN Name=dapB {ECO:0000255|HAMAP-Rule:MF_00102};
GN OrderedLocusNames=PCC8801_1680;
OS Rippkaea orientalis (strain PCC 8801) (Cyanothece sp. (strain PCC 8801)).
OC Bacteria; Cyanobacteria; Oscillatoriophycideae; Chroococcales;
OC Aphanothecaceae; Rippkaea; Rippkaea orientalis.
OX NCBI_TaxID=41431;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 8801;
RX PubMed=21972240; DOI=10.1128/mbio.00214-11;
RA Bandyopadhyay A., Elvitigala T., Welsh E., Stockel J., Liberton M., Min H.,
RA Sherman L.A., Pakrasi H.B.;
RT "Novel metabolic attributes of the genus Cyanothece, comprising a group of
RT unicellular nitrogen-fixing Cyanobacteria.";
RL MBio 2:E214-E214(2011).
CC -!- FUNCTION: Catalyzes the conversion of 4-hydroxy-tetrahydrodipicolinate
CC (HTPA) to tetrahydrodipicolinate. {ECO:0000255|HAMAP-Rule:MF_00102}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(S)-2,3,4,5-tetrahydrodipicolinate + H2O + NAD(+) = (2S,4S)-4-
CC 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:0000255|HAMAP-
CC Rule:MF_00102};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(S)-2,3,4,5-tetrahydrodipicolinate + H2O + NADP(+) = (2S,4S)-
CC 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:0000255|HAMAP-
CC Rule:MF_00102};
CC -!- PATHWAY: Amino-acid biosynthesis; L-lysine biosynthesis via DAP
CC pathway; (S)-tetrahydrodipicolinate from L-aspartate: step 4/4.
CC {ECO:0000255|HAMAP-Rule:MF_00102}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00102}.
CC -!- SIMILARITY: Belongs to the DapB family. {ECO:0000255|HAMAP-
CC Rule:MF_00102}.
CC -!- CAUTION: Was originally thought to be a dihydrodipicolinate reductase
CC (DHDPR), catalyzing the conversion of dihydrodipicolinate to
CC tetrahydrodipicolinate. However, it was shown in E.coli that the
CC substrate of the enzymatic reaction is not dihydrodipicolinate (DHDP)
CC but in fact (2S,4S)-4-hydroxy-2,3,4,5-tetrahydrodipicolinic acid
CC (HTPA), the product released by the DapA-catalyzed reaction.
CC {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP001287; ACK65730.1; -; Genomic_DNA.
DR RefSeq; WP_012595003.1; NC_011726.1.
DR AlphaFoldDB; B7JW41; -.
DR SMR; B7JW41; -.
DR STRING; 41431.PCC8801_1680; -.
DR EnsemblBacteria; ACK65730; ACK65730; PCC8801_1680.
DR KEGG; cyp:PCC8801_1680; -.
DR eggNOG; COG0289; Bacteria.
DR HOGENOM; CLU_047479_0_0_3; -.
DR OMA; HHPNKAD; -.
DR OrthoDB; 803114at2; -.
DR UniPathway; UPA00034; UER00018.
DR Proteomes; UP000008204; Chromosome.
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; Cytoplasm; Diaminopimelate biosynthesis;
KW Lysine biosynthesis; NAD; NADP; Oxidoreductase; Reference proteome.
FT CHAIN 1..275
FT /note="4-hydroxy-tetrahydrodipicolinate reductase"
FT /id="PRO_1000117364"
FT ACT_SITE 164
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT ACT_SITE 168
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT BINDING 13..18
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT BINDING 108..110
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT BINDING 165
FT /ligand="(S)-2,3,4,5-tetrahydrodipicolinate"
FT /ligand_id="ChEBI:CHEBI:16845"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
FT BINDING 174..175
FT /ligand="(S)-2,3,4,5-tetrahydrodipicolinate"
FT /ligand_id="ChEBI:CHEBI:16845"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00102"
SQ SEQUENCE 275 AA; 29508 MW; E6392DFD880872BD CRC64;
MTTDSLIPVV VNGAAGKMGR EVVKAVAQAE DMMLVGAVDY NPNYRGQDVG EVAGCGALEV
PIVDDLQSIL VLATQEKIQG VMVDFTHPDS VYENVRSAIA YGVRPVVGTT GLTEEQLKDL
ADFADKASTG CLVIPNFSIG MVLLQQAAVQ ASQYFDHVEI IELHHNQKAD APSGTAIKTA
QMLSGLGKTY NPPMVKETET IAGAKGALVD DNIRIHSVRL PGLIAHQEVI FGAKGEIYTL
RHDTSDRSCY MAGVLLSIRK VTQLQSLVYG LEKIL
