ID   DAPF_NITEC              Reviewed;         278 AA.
AC   Q0AIP0;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 1.
DT   03-AUG-2022, entry version 88.
DE   RecName: Full=Diaminopimelate epimerase {ECO:0000255|HAMAP-Rule:MF_00197};
DE            Short=DAP epimerase {ECO:0000255|HAMAP-Rule:MF_00197};
DE            EC=5.1.1.7 {ECO:0000255|HAMAP-Rule:MF_00197};
DE   AltName: Full=PLP-independent amino acid racemase {ECO:0000255|HAMAP-Rule:MF_00197};
GN   Name=dapF {ECO:0000255|HAMAP-Rule:MF_00197}; OrderedLocusNames=Neut_0505;
OS   Nitrosomonas eutropha (strain DSM 101675 / C91 / Nm57).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Nitrosomonadales;
OC   Nitrosomonadaceae; Nitrosomonas.
OX   NCBI_TaxID=335283;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 101675 / C91 / Nm57;
RX   PubMed=17991028; DOI=10.1111/j.1462-2920.2007.01409.x;
RA   Stein L.Y., Arp D.J., Berube P.M., Chain P.S., Hauser L., Jetten M.S.,
RA   Klotz M.G., Larimer F.W., Norton J.M., Op den Camp H.J.M., Shin M., Wei X.;
RT   "Whole-genome analysis of the ammonia-oxidizing bacterium, Nitrosomonas
RT   eutropha C91: implications for niche adaptation.";
RL   Environ. Microbiol. 9:2993-3007(2007).
CC   -!- FUNCTION: Catalyzes the stereoinversion of LL-2,6-diaminoheptanedioate
CC       (L,L-DAP) to meso-diaminoheptanedioate (meso-DAP), a precursor of L-
CC       lysine and an essential component of the bacterial peptidoglycan.
CC       {ECO:0000255|HAMAP-Rule:MF_00197}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(2S,6S)-2,6-diaminoheptanedioate = meso-2,6-
CC         diaminoheptanedioate; Xref=Rhea:RHEA:15393, ChEBI:CHEBI:57609,
CC         ChEBI:CHEBI:57791; EC=5.1.1.7; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00197};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-lysine biosynthesis via DAP
CC       pathway; DL-2,6-diaminopimelate from LL-2,6-diaminopimelate: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_00197}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00197}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00197}.
CC   -!- SIMILARITY: Belongs to the diaminopimelate epimerase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00197}.
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DR   EMBL; CP000450; ABI58781.1; -; Genomic_DNA.
DR   RefSeq; WP_011633623.1; NC_008344.1.
DR   AlphaFoldDB; Q0AIP0; -.
DR   SMR; Q0AIP0; -.
DR   STRING; 335283.Neut_0505; -.
DR   EnsemblBacteria; ABI58781; ABI58781; Neut_0505.
DR   KEGG; net:Neut_0505; -.
DR   eggNOG; COG0253; Bacteria.
DR   HOGENOM; CLU_053306_1_1_4; -.
DR   OMA; HVAMRVH; -.
DR   OrthoDB; 1921631at2; -.
DR   UniPathway; UPA00034; UER00025.
DR   Proteomes; UP000001966; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0008837; F:diaminopimelate epimerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009089; P:lysine biosynthetic process via diaminopimelate; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00197; DAP_epimerase; 1.
DR   InterPro; IPR018510; DAP_epimerase_AS.
DR   InterPro; IPR001653; DAP_epimerase_DapF.
DR   PANTHER; PTHR31689; PTHR31689; 1.
DR   Pfam; PF01678; DAP_epimerase; 2.
DR   TIGRFAMs; TIGR00652; DapF; 1.
DR   PROSITE; PS01326; DAP_EPIMERASE; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; Isomerase; Lysine biosynthesis.
FT   CHAIN           1..278
FT                   /note="Diaminopimelate epimerase"
FT                   /id="PRO_1000011915"
FT   ACT_SITE        77
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   ACT_SITE        221
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         13
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         49
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         68
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         78..79
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         161
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         194
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         212..213
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         222..223
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   SITE            163
FT                   /note="Could be important to modulate the pK values of the
FT                   two catalytic cysteine residues"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   SITE            212
FT                   /note="Could be important to modulate the pK values of the
FT                   two catalytic cysteine residues"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
SQ   SEQUENCE   278 AA;  30467 MW;  39078C56CE6D780A CRC64;
     MKLQFTKMHG LGNDFIVINA INQPASLTFL DPATIRRLAD RHFGIGFDQL LIVEQAREGG
     DFRYRIFNAD GGEVEQCGNG ARCFARFVRD YNLTDKNTIR VETARGIITP TIENNGEVSV
     NMGVPQFEPA EIPFQAAQRM PVYPLQIGDK TIEISAVSIG NPHAVQIIPD IDLAPVTTEG
     PKIEAHPLFP ERVNAGFMQI IDRAHIRLRV FERGTGETLA CGTGACAAVV CGILRGLLDT
     TVQVAMHGGN LQIRWDGKDK PVWMTGPAIT VFEGTIDL