DAPF_ECOHS
ID DAPF_ECOHS Reviewed; 274 AA.
AC A8A6R7;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-OCT-2007, sequence version 1.
DT 03-AUG-2022, entry version 76.
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=EcHS_A4034;
OS Escherichia coli O9:H4 (strain HS).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=331112;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HS;
RX PubMed=18676672; DOI=10.1128/jb.00619-08;
RA Rasko D.A., Rosovitz M.J., Myers G.S.A., Mongodin E.F., Fricke W.F.,
RA Gajer P., Crabtree J., Sebaihia M., Thomson N.R., Chaudhuri R.,
RA Henderson I.R., Sperandio V., Ravel J.;
RT "The pangenome structure of Escherichia coli: comparative genomic analysis
RT of E. coli commensal and pathogenic isolates.";
RL J. Bacteriol. 190:6881-6893(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; CP000802; ABV08221.1; -; Genomic_DNA.
DR RefSeq; WP_001160654.1; NC_009800.1.
DR AlphaFoldDB; A8A6R7; -.
DR SMR; A8A6R7; -.
DR GeneID; 66672284; -.
DR KEGG; ecx:EcHS_A4034; -.
DR HOGENOM; CLU_053306_1_1_6; -.
DR OMA; HVAMRVH; -.
DR UniPathway; UPA00034; UER00025.
DR Proteomes; UP000001123; 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..274
FT /note="Diaminopimelate epimerase"
FT /id="PRO_1000058542"
FT ACT_SITE 73
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT ACT_SITE 217
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 11
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 44
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 64
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 74..75
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 157
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 190
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 208..209
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 218..219
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT SITE 159
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 208
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 268
FT /note="Important for dimerization"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
SQ SEQUENCE 274 AA; 30209 MW; 4ACC137D2F5BD240 CRC64;
MQFSKMHGLG NDFMVVDAVT QNVFFSPELI RRLADRHLGV GFDQLLVVEP PYDPELDFHY
RIFNADGSEV AQCGNGARCF ARFVRLKGLT NKRDIRVSTA NGRMVLTVTD DDLVRVNMGE
PNFEPSAVPF RANKAEKTYI MRAAEQTILC GVVSMGNPHC VIQVDDVDTA AVETLGPVLE
SHERFPERAN IGFMQVVKRE HIRLRVYERG AGETQACGSG ACAAVAVGIQ QGLLAEEVRV
ELPGGRLDIA WKGPGHPLYM TGPAVHVYDG FIHL
