ID K2K506_HELPX Unreviewed; 272 AA.
AC K2K506;
DT 28-NOV-2012, integrated into UniProtKB/TrEMBL.
DT 28-NOV-2012, sequence version 1.
DT 24-JAN-2024, entry version 45.
DE RecName: Full=Diaminopimelate epimerase {ECO:0000256|ARBA:ARBA00013080, ECO:0000256|HAMAP-Rule:MF_00197};
DE Short=DAP epimerase {ECO:0000256|HAMAP-Rule:MF_00197};
DE EC=5.1.1.7 {ECO:0000256|ARBA:ARBA00013080, ECO:0000256|HAMAP-Rule:MF_00197};
DE AltName: Full=PLP-independent amino acid racemase {ECO:0000256|HAMAP-Rule:MF_00197};
GN Name=dapF {ECO:0000256|HAMAP-Rule:MF_00197,
GN ECO:0000313|EMBL:EKE90771.1};
GN ORFNames=OUO_0538 {ECO:0000313|EMBL:EKE90771.1};
OS Helicobacter pylori R046Wa.
OC Bacteria; Campylobacterota; Epsilonproteobacteria; Campylobacterales;
OC Helicobacteraceae; Helicobacter.
OX NCBI_TaxID=1145116 {ECO:0000313|EMBL:EKE90771.1, ECO:0000313|Proteomes:UP000006763};
RN [1] {ECO:0000313|EMBL:EKE90771.1, ECO:0000313|Proteomes:UP000006763}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=R046Wa {ECO:0000313|EMBL:EKE90771.1,
RC ECO:0000313|Proteomes:UP000006763};
RX PubMed=23661595; DOI=10.1111/2049-632X.12045;
RA Blanchard T.G., Czinn S.J., Correa P., Nakazawa T., Keelan M.,
RA Morningstar L., Santana-Cruz I., Maroo A., McCracken C., Shefchek K.,
RA Daugherty S., Song Y., Fraser C.M., Fricke W.F.;
RT "Genome sequences of 65 Helicobacter pylori strains isolated from
RT asymptomatic individuals and patients with gastric cancer, peptic ulcer
RT disease, or gastritis.";
RL Pathog. Dis. 68:39-43(2013).
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:0000256|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;
CC Evidence={ECO:0000256|ARBA:ARBA00000599, ECO:0000256|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:0000256|ARBA:ARBA00005196, ECO:0000256|HAMAP-Rule:MF_00197}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00197}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00197}.
CC -!- SIMILARITY: Belongs to the diaminopimelate epimerase family.
CC {ECO:0000256|ARBA:ARBA00010219, ECO:0000256|HAMAP-Rule:MF_00197}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00197}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EKE90771.1}.
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DR EMBL; AMOW01000004; EKE90771.1; -; Genomic_DNA.
DR RefSeq; WP_000232407.1; NZ_AMOW01000004.1.
DR AlphaFoldDB; K2K506; -.
DR PATRIC; fig|1145116.3.peg.517; -.
DR UniPathway; UPA00034; UER00025.
DR Proteomes; UP000006763; Unassembled WGS sequence.
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; 2.
DR PROSITE; PS01326; DAP_EPIMERASE; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_00197}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00197};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_00197};
KW Lysine biosynthesis {ECO:0000256|ARBA:ARBA00023154, ECO:0000256|HAMAP-
KW Rule:MF_00197}.
FT ACT_SITE 69
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU10125"
FT ACT_SITE 69
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00197"
FT ACT_SITE 209
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00197"
FT BINDING 11
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00197"
FT BINDING 60
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00197"
FT BINDING 70..71
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00197"
FT BINDING 181
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00197"
FT BINDING 199..200
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00197"
FT BINDING 210..211
FT /ligand="substrate"
FT /evidence="ECO:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_00197"
SQ SEQUENCE 272 AA; 30600 MW; 12371CF7B2D88CEF CRC64;
MVFYKYSGSG NDFLITQSFK KKDFSNLAKQ VCHRHEGFGA DGLVVVLPSK DYDYEWDFYN
SDGSKAGMCG NASRCVGLFA YQHAIAPKEH VFLAGKREIS ICIEEPNIIE SNLGNYKILD
VIPALRCEKF FTNNSVLEHI PTFYLIDTGV PHLVGFVKNK EGLNSLNTLE LRVLRHEFNA
NINIAFIENK ETIFLQTYER GVEDFTLACG TGMAAVFIAS RIFYNTPKKA TLIPKSNESL
ELSLKNDEIF YKGTVRYIGM SVLGSVFENG CF
//
