ID   DAPF_PSYIN              Reviewed;         275 AA.
AC   A1SQZ9;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   27-MAR-2024, entry version 92.
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=Ping_0040;
OS   Psychromonas ingrahamii (strain DSM 17664 / CCUG 51855 / 37).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC   Psychromonadaceae; Psychromonas.
OX   NCBI_TaxID=357804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 17664 / CCUG 51855 / 37;
RX   PubMed=18460197; DOI=10.1186/1471-2164-9-210;
RA   Riley M., Staley J.T., Danchin A., Wang T.Z., Brettin T.S., Hauser L.J.,
RA   Land M.L., Thompson L.S.;
RT   "Genomics of an extreme psychrophile, Psychromonas ingrahamii.";
RL   BMC Genomics 9:210-210(2008).
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; CP000510; ABM01914.1; -; Genomic_DNA.
DR   RefSeq; WP_011768473.1; NC_008709.1.
DR   AlphaFoldDB; A1SQZ9; -.
DR   SMR; A1SQZ9; -.
DR   STRING; 357804.Ping_0040; -.
DR   KEGG; pin:Ping_0040; -.
DR   eggNOG; COG0253; Bacteria.
DR   HOGENOM; CLU_053306_1_1_6; -.
DR   OrthoDB; 9805408at2; -.
DR   UniPathway; UPA00034; UER00025.
DR   Proteomes; UP000000639; 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_1000011940"
FT   ACT_SITE        75
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   ACT_SITE        219
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         46
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         66
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         76..77
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         159
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         192
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         210..211
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   BINDING         220..221
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT   SITE            161
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            210
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;  30577 MW;  F074ABCDDC147C55 CRC64;
     MNIQFSKMHG LGNDFMVIDN VTQNVFLSKD TISRLADRNF GIGFDQLLMI EPPYDPELDF
     HYRIFNADGS EVEQCGNGAR CFARFVKMKG LTQKRIINVS TAKGKIQLKI EHDGNITVDM
     GKPILEPAKV PFEAQKEEKT YILRVEDHTV LCGVVSIGNP HCVVLVDDID NAPVETLGPL
     LENHERFPNK VNVGFLEIKS RDHARLRVWE RGVGETLACG TGACAAAVVG QLQDKLNPHC
     TIELPGGELR LFWQPGQSVK MTGTADFVFD GQIQI
//