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Protein

Diaminopimelate epimerase

Gene

dapF

Organism
Escherichia coli O7:K1 (strain IAI39 / ExPEC)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

Catalyzes the stereoinversion of LL-2,6-diaminoheptanedioate (L,L-DAP) to meso-diaminoheptanedioate (meso-DAP), a precursor of L-lysine and an essential component of the bacterial peptidoglycan.UniRule annotation

Catalytic activityi

LL-2,6-diaminoheptanedioate = meso-diaminoheptanedioate.UniRule annotation

Pathwayi: L-lysine biosynthesis via DAP pathway

This protein is involved in step 1 of the subpathway that synthesizes DL-2,6-diaminopimelate from LL-2,6-diaminopimelate.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Diaminopimelate epimerase (dapF)
This subpathway is part of the pathway L-lysine biosynthesis via DAP pathway, which is itself part of Amino-acid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes DL-2,6-diaminopimelate from LL-2,6-diaminopimelate, the pathway L-lysine biosynthesis via DAP pathway and in Amino-acid biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei11SubstrateUniRule annotation1
Binding sitei44SubstrateUniRule annotation1
Binding sitei64SubstrateUniRule annotation1
Active sitei73Proton donorUniRule annotation1
Binding sitei157SubstrateUniRule annotation1
Sitei159Could be important to modulate the pK values of the two catalytic cysteine residuesUniRule annotation1
Binding sitei190SubstrateUniRule annotation1
Sitei208Could be important to modulate the pK values of the two catalytic cysteine residuesUniRule annotation1
Active sitei217Proton acceptorUniRule annotation1
Sitei268Important for dimerizationUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionIsomerase
Biological processAmino-acid biosynthesis, Lysine biosynthesis

Enzyme and pathway databases

BioCyciECOL585057:G1GIC-3075-MONOMER
UniPathwayiUPA00034; UER00025

Names & Taxonomyi

Protein namesi
Recommended name:
Diaminopimelate epimeraseUniRule annotation (EC:5.1.1.7UniRule annotation)
Short name:
DAP epimeraseUniRule annotation
Alternative name(s):
PLP-independent amino acid racemaseUniRule annotation
Gene namesi
Name:dapFUniRule annotation
Ordered Locus Names:ECIAI39_2978
OrganismiEscherichia coli O7:K1 (strain IAI39 / ExPEC)
Taxonomic identifieri585057 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
Proteomesi
  • UP000000749 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10001186681 – 274Diaminopimelate epimeraseAdd BLAST274

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliB7NTD3
SMRiB7NTD3
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni74 – 75Substrate bindingUniRule annotation2
Regioni208 – 209Substrate bindingUniRule annotation2
Regioni218 – 219Substrate bindingUniRule annotation2

Sequence similaritiesi

Belongs to the diaminopimelate epimerase family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000220466
KOiK01778
OMAiSMCGNGG

Family and domain databases

HAMAPiMF_00197 DAP_epimerase, 1 hit
InterProiView protein in InterPro
IPR018510 DAP_epimerase_AS
IPR001653 DAP_epimerase_DapF
PANTHERiPTHR31689 PTHR31689, 1 hit
PfamiView protein in Pfam
PF01678 DAP_epimerase, 2 hits
TIGRFAMsiTIGR00652 DapF, 1 hit
PROSITEiView protein in PROSITE
PS01326 DAP_EPIMERASE, 1 hit

Sequencei

Sequence statusi: Complete.

B7NTD3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MQFSKMHGLG NDFMVVDAVT QNVFFSPELI RRLADRHLGV GFDQLLVVEP
60 70 80 90 100
PYDPELDFHY RIFNADGSEV AQCGNGARCF ARFVRLKGLT NKRDIRVSTA
110 120 130 140 150
NGRMVLTVTD DDLVRVNMGE PNFEPSAVPF RANKAEKTYI MRAAEQTILC
160 170 180 190 200
GVVSMGNPHC VIQVDDVDTA AVETLGPVLE SHERFPERAN IGFMQVVKRE
210 220 230 240 250
HIRLRVYERG AGETQACGSG ACAAVAVGIQ QGLLAEEVRV ELPGGRLDIA
260 270
WKGPGHPLYM TGPAVHVYDG FIHL
Length:274
Mass (Da):30,209
Last modified:March 24, 2009 - v1
Checksum:i4ACC137D2F5BD240
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CU928164 Genomic DNA Translation: CAR19097.1
RefSeqiWP_001160654.1, NC_011750.1
YP_002408906.1, NC_011750.1

Genome annotation databases

EnsemblBacteriaiCAR19097; CAR19097; ECIAI39_2978
GeneIDi7154205
KEGGiect:ECIAI39_2978
PATRICifig|585057.6.peg.3089

Similar proteinsi

Entry informationi

Entry nameiDAPF_ECO7I
AccessioniPrimary (citable) accession number: B7NTD3
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 14, 2009
Last sequence update: March 24, 2009
Last modified: March 28, 2018
This is version 54 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome
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Main funding by: National Institutes of Health