DAPF_ACIBY
ID DAPF_ACIBY Reviewed; 281 AA.
AC B0VDN4;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 08-APR-2008, sequence version 1.
DT 03-AUG-2022, entry version 74.
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=ABAYE0861;
OS Acinetobacter baumannii (strain AYE).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC Acinetobacter; Acinetobacter calcoaceticus/baumannii complex.
OX NCBI_TaxID=509173;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AYE;
RX PubMed=18350144; DOI=10.1371/journal.pone.0001805;
RA Vallenet D., Nordmann P., Barbe V., Poirel L., Mangenot S., Bataille E.,
RA Dossat C., Gas S., Kreimeyer A., Lenoble P., Oztas S., Poulain J.,
RA Segurens B., Robert C., Abergel C., Claverie J.-M., Raoult D., Medigue C.,
RA Weissenbach J., Cruveiller S.;
RT "Comparative analysis of Acinetobacters: three genomes for three
RT lifestyles.";
RL PLoS ONE 3:E1805-E1805(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; CU459141; CAM85811.1; -; Genomic_DNA.
DR RefSeq; WP_000923484.1; NC_010410.1.
DR AlphaFoldDB; B0VDN4; -.
DR SMR; B0VDN4; -.
DR EnsemblBacteria; CAM85811; CAM85811; ABAYE0861.
DR KEGG; aby:ABAYE0861; -.
DR HOGENOM; CLU_053306_1_1_6; -.
DR OMA; HVAMRVH; -.
DR UniPathway; UPA00034; UER00025.
DR Proteomes; UP000002446; 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..281
FT /note="Diaminopimelate epimerase"
FT /id="PRO_1000099215"
FT ACT_SITE 75
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT ACT_SITE 220
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 160
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 193
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 211..212
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 221..222
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT SITE 162
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 211
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 270
FT /note="Important for dimerization"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
SQ SEQUENCE 281 AA; 31139 MW; 700E4DB6C3C49032 CRC64;
MLLEFTKMHG LGNDFMVVDL ISQRAYLDTA TIQRLADRHF GVGFDQLLIV EPPDVPEADF
KYRIFNADGS EVEQCGNGVR CFARFVHERH LTNKTNITVQ TKAGIVKPEL GQNGWVRVNM
GYPKFLPNEI PFVAEEPEAL YTLELANDQN ISIDVVNMGN PHAVTIVPDV LTADVAGIGP
QVESHKRFPE RVNAGFMQVI DDKHVRLRVF ERGVGETLAC GTGACAAAVS GMRRGLLANS
VEVELAGGKL QIEWQEGDVV WMTGPTTHVY DGRLDLRYFQ G
