DAPF_BUCAI
ID DAPF_BUCAI Reviewed; 284 AA.
AC P57649;
DT 01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT 01-DEC-2000, sequence version 1.
DT 03-AUG-2022, entry version 110.
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=BU589;
OS Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS pisum symbiotic bacterium).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Erwiniaceae; Buchnera.
OX NCBI_TaxID=107806;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=APS;
RX PubMed=10993077; DOI=10.1038/35024074;
RA Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT sp. APS.";
RL Nature 407:81-86(2000).
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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=BAB13278.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR EMBL; BA000003; BAB13278.1; ALT_INIT; Genomic_DNA.
DR RefSeq; NP_240392.2; NC_002528.1.
DR RefSeq; WP_010896180.1; NC_002528.1.
DR AlphaFoldDB; P57649; -.
DR SMR; P57649; -.
DR STRING; 107806.10039244; -.
DR EnsemblBacteria; BAB13278; BAB13278; BAB13278.
DR KEGG; buc:BU589; -.
DR PATRIC; fig|107806.10.peg.594; -.
DR eggNOG; COG0253; Bacteria.
DR HOGENOM; CLU_053306_1_1_6; -.
DR OMA; HVAMRVH; -.
DR UniPathway; UPA00034; UER00025.
DR Proteomes; UP000001806; 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;
KW Reference proteome.
FT CHAIN 1..284
FT /note="Diaminopimelate epimerase"
FT /id="PRO_0000149825"
FT ACT_SITE 83
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT ACT_SITE 227
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 21
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 54
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 74
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 84..85
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 167
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT BINDING 200
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 BINDING 228..229
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
FT SITE 169
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 218
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 278
FT /note="Important for dimerization"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00197"
SQ SEQUENCE 284 AA; 31972 MW; 078903E597C92873 CRC64;
MDSYYKNKKK INFSKMHGLK NDFMVINCIK KNVFLTSHII KKLSNRYTGI GFDQLLLVEK
SNSLLTDFHY RIFNANGNEV EQCGNGARCF GLFLLLKGLT NKKKILISTK KKPLTIEFLT
ENMIKVNMNE PDFKFYNLSS LQNVLDNNFS IKLMNENLIC NLVSIGNPHC IIKVQSVKNA
PVNIIGDSIE KNPIFPEGVN VSFMEILNKK HIKLRVYERN VGETKACGSA ACAAVAVGIA
QKLLSDTVHV ELLGGKLIII WKGFGTPLYM VGPAKHVYDG YIYI
