ID   DAPF_SHEFN              Reviewed;         275 AA.
AC   Q088K8;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   31-OCT-2006, sequence version 1.
DT   27-MAR-2024, entry version 90.
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};
GN   OrderedLocusNames=Sfri_0445;
OS   Shewanella frigidimarina (strain NCIMB 400).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC   Shewanellaceae; Shewanella.
OX   NCBI_TaxID=318167;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NCIMB 400;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Fredrickson J.K., Kolker E., McCuel L.A., DiChristina T., Nealson K.H.,
RA   Newman D., Tiedje J.M., Zhou J., Romine M.F., Culley D.E., Serres M.,
RA   Chertkov O., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Richardson P.;
RT   "Complete sequence of Shewanella frigidimarina NCIMB 400.";
RL   Submitted (AUG-2006) to the EMBL/GenBank/DDBJ databases.
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; CP000447; ABI70307.1; -; Genomic_DNA.
DR   RefSeq; WP_011635934.1; NC_008345.1.
DR   AlphaFoldDB; Q088K8; -.
DR   SMR; Q088K8; -.
DR   STRING; 318167.Sfri_0445; -.
DR   KEGG; sfr:Sfri_0445; -.
DR   eggNOG; COG0253; Bacteria.
DR   HOGENOM; CLU_053306_1_1_6; -.
DR   OrthoDB; 9805408at2; -.
DR   UniPathway; UPA00034; UER00025.
DR   Proteomes; UP000000684; 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   NCBIfam; TIGR00652; DapF; 1.
DR   PANTHER; PTHR31689:SF0; DIAMINOPIMELATE EPIMERASE; 1.
DR   PANTHER; PTHR31689; DIAMINOPIMELATE EPIMERASE, CHLOROPLASTIC; 1.
DR   Pfam; PF01678; DAP_epimerase; 2.
DR   SUPFAM; SSF54506; Diaminopimelate epimerase-like; 1.
DR   PROSITE; PS01326; DAP_EPIMERASE; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; Isomerase; Lysine biosynthesis;
KW   Reference proteome.
FT   CHAIN           1..275
FT                   /note="Diaminopimelate epimerase"
FT                   /id="PRO_1000011963"
FT   ACT_SITE        74
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   ACT_SITE        218
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         12
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         45
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         65
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         75..76
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         158
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         191
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         209..210
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         219..220
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   SITE            160
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            209
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            269
FT                   /note="Important for dimerization"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
SQ   SEQUENCE   275 AA;  30448 MW;  1C1AE7CBFD09ABBA CRC64;
     MIHFTKMHGL GNDFMVVDGV TQNVFFSPEQ IRRLADRNFG IGFDQLLLVE PPYDPDLDFH
     YRIFNADGSE VEQCGNGARC FARFVRNKGL TQKNKIRVST NSGKITLRIE RDGNVTVNMG
     VPVIEPSQIP FKAKKSEKTY LLQTPMQTYL CGAISMGNPH CVIQVEDVQT VNVDEIGSSL
     TRHERFPKGV NVGFMQVINP GHIKLRVYER GAAETLACGT GACAAAAVGQ LQDKLDKQVR
     VDLPGGSLII NWEGEGKPLW MTGPAEHVYD GQIQL
//