DAPF_HELPH
ID DAPF_HELPH Reviewed; 273 AA.
AC Q1CTW0;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 11-JUL-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=HPAG1_0545;
OS Helicobacter pylori (strain HPAG1).
OC Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC Helicobacteraceae; Helicobacter.
OX NCBI_TaxID=357544;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HPAG1;
RX PubMed=16788065; DOI=10.1073/pnas.0603784103;
RA Oh J.D., Kling-Baeckhed H., Giannakis M., Xu J., Fulton R.S., Fulton L.A.,
RA Cordum H.S., Wang C., Elliott G., Edwards J., Mardis E.R., Engstrand L.G.,
RA Gordon J.I.;
RT "The complete genome sequence of a chronic atrophic gastritis Helicobacter
RT pylori strain: evolution during disease progression.";
RL Proc. Natl. Acad. Sci. U.S.A. 103:9999-10004(2006).
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; CP000241; ABF84612.1; -; Genomic_DNA.
DR RefSeq; WP_000232448.1; NC_008086.1.
DR AlphaFoldDB; Q1CTW0; -.
DR SMR; Q1CTW0; -.
DR EnsemblBacteria; ABF84612; ABF84612; HPAG1_0545.
DR KEGG; hpa:HPAG1_0545; -.
DR HOGENOM; CLU_053306_3_2_7; -.
DR OMA; HVAMRVH; -.
DR OrthoDB; 1921631at2; -.
DR UniPathway; UPA00034; UER00025.
DR Proteomes; UP000008835; 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..273
FT /note="Diaminopimelate epimerase"
FT /id="PRO_1000011890"
FT ACT_SITE 69
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT ACT_SITE 209
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 60
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 70..71
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 181
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 199..200
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 SITE 152
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 199
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 273 AA; 30653 MW; BB05D1335A4A1C30 CRC64;
MVFYKYSGSG NDFLIVQSFK KKDFSNLAKQ VCHRHEGFGA DGLVVVLPSK DYDYEWDFYN
SDGSKAGMCG NASRCVGLFA YQHAIAPKEH VFLAGKREIS IRIEEPNIIE SNLGNYKILD
VIPALRCEKF FTNDSVLENI PTFYLIDTGV PHLVGFVKNK EGLNSLNTLE LRALRHEFNA
NINIAFIENK ETIFLQTYER GVEDFTLACG TGMAAVFIAA RIFYNTPKKA ALIPKSNESL
ELSLKNDGIF YKGAVRYIGM SVLGMRVFEN GCF
