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Protein

Diaminopimelate epimerase

Gene

dapF

Organism
Helicobacter pylori (strain HPAG1)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-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 sitei60SubstrateUniRule annotation1
Active sitei69Proton donorUniRule annotation1
Sitei152Could be important to modulate the pK values of the two catalytic cysteine residuesUniRule annotation1
Binding sitei181SubstrateUniRule annotation1
Sitei199Could be important to modulate the pK values of the two catalytic cysteine residuesUniRule annotation1
Active sitei209Proton acceptorUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionIsomerase
Biological processAmino-acid biosynthesis, Lysine biosynthesis

Enzyme and pathway databases

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:HPAG1_0545
OrganismiHelicobacter pylori (strain HPAG1)
Taxonomic identifieri357544 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaEpsilonproteobacteriaCampylobacteralesHelicobacteraceaeHelicobacter
Proteomesi
  • UP000008835 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10000118901 – 273Diaminopimelate epimeraseAdd BLAST273

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliQ1CTW0.
SMRiQ1CTW0.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni70 – 71Substrate bindingUniRule annotation2
Regioni199 – 200Substrate bindingUniRule annotation2
Regioni210 – 211Substrate bindingUniRule annotation2

Sequence similaritiesi

Belongs to the diaminopimelate epimerase family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000220466.
KOiK01778.
OMAiMCGNGGR.
OrthoDBiPOG091H01QC.

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.

Q1CTW0-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVFYKYSGSG NDFLIVQSFK KKDFSNLAKQ VCHRHEGFGA DGLVVVLPSK
60 70 80 90 100
DYDYEWDFYN SDGSKAGMCG NASRCVGLFA YQHAIAPKEH VFLAGKREIS
110 120 130 140 150
IRIEEPNIIE SNLGNYKILD VIPALRCEKF FTNDSVLENI PTFYLIDTGV
160 170 180 190 200
PHLVGFVKNK EGLNSLNTLE LRALRHEFNA NINIAFIENK ETIFLQTYER
210 220 230 240 250
GVEDFTLACG TGMAAVFIAA RIFYNTPKKA ALIPKSNESL ELSLKNDGIF
260 270
YKGAVRYIGM SVLGMRVFEN GCF
Length:273
Mass (Da):30,653
Last modified:July 11, 2006 - v1
Checksum:iBB05D1335A4A1C30
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000241 Genomic DNA. Translation: ABF84612.1.
RefSeqiWP_000232448.1. NC_008086.1.

Genome annotation databases

EnsemblBacteriaiABF84612; ABF84612; HPAG1_0545.
KEGGihpa:HPAG1_0545.

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.

Entry informationi

Entry nameiDAPF_HELPH
AccessioniPrimary (citable) accession number: Q1CTW0
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: July 11, 2006
Last modified: June 7, 2017
This is version 71 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

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families