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Q3SWN3 (FPG_NITWN) Reviewed, UniProtKB/Swiss-Prot

Last modified February 19, 2014. Version 65. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Formamidopyrimidine-DNA glycosylase

Short name=Fapy-DNA glycosylase
EC=3.2.2.23
Alternative name(s):
DNA-(apurinic or apyrimidinic site) lyase MutM
Short name=AP lyase MutM
EC=4.2.99.18
Gene names
Name:mutM
Synonyms:fpg
Ordered Locus Names:Nwi_0040
OrganismNitrobacter winogradskyi (strain Nb-255 / ATCC 25391) [Complete proteome] [HAMAP]
Taxonomic identifier323098 [NCBI]
Taxonomic lineageBacteriaProteobacteriaAlphaproteobacteriaRhizobialesBradyrhizobiaceaeNitrobacter

Protein attributes

Sequence length293 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceInferred from homology

General annotation (Comments)

Function

Involved in base excision repair of DNA damaged by oxidation or by mutagenic agents. Acts as DNA glycosylase that recognizes and removes damaged bases. Has a preference for oxidized purines, such as 7,8-dihydro-8-oxoguanine (8-oxoG). Has AP (apurinic/apyrimidinic) lyase activity and introduces nicks in the DNA strand. Cleaves the DNA backbone by beta-delta elimination to generate a single-strand break at the site of the removed base with both 3'- and 5'-phosphates By similarity. HAMAP-Rule MF_00103

Catalytic activity

Hydrolysis of DNA containing ring-opened 7-methylguanine residues, releasing 2,6-diamino-4-hydroxy-5-(N-methyl)formamidopyrimidine. HAMAP-Rule MF_00103

The C-O-P bond 3' to the apurinic or apyrimidinic site in DNA is broken by a beta-elimination reaction, leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'-phosphate. HAMAP-Rule MF_00103

Cofactor

Binds 1 zinc ion per subunit By similarity. HAMAP-Rule MF_00103

Subunit structure

Monomer By similarity. HAMAP-Rule MF_00103

Sequence similarities

Belongs to the FPG family.

Contains 1 FPG-type zinc finger.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Initiator methionine11Removed By similarity
Chain2 – 293292Formamidopyrimidine-DNA glycosylase HAMAP-Rule MF_00103
PRO_0000228451

Regions

Zinc finger257 – 29337FPG-type HAMAP-Rule MF_00103

Sites

Active site21Schiff-base intermediate with DNA By similarity
Active site31Proton donor By similarity
Active site581Proton donor; for beta-elimination activity By similarity
Active site2831Proton donor; for delta-elimination activity By similarity
Binding site1041DNA By similarity
Binding site1231DNA By similarity
Binding site1661DNA By similarity

Sequences

Sequence LengthMass (Da)Tools
Q3SWN3 [UniParc].

Last modified January 23, 2007. Version 3.
Checksum: 460D348F3071BE27

FASTA29332,337
        10         20         30         40         50         60 
MPELPEVETV RRGLQPAMEG ATIVRAETRR KDLRFPFQTD FVARLEGQAV TGLGRRAKYL 

        70         80         90        100        110        120 
LADLASGDVL LMHLGMSGSF RVIDAAGVTV PGDFHRPRGE DRVHDHVRFT MSSRAEIVFN 

       130        140        150        160        170        180 
DPRRFGYMKI VARSALGDEP LLKGLGPEPL GNEFDAAVLA HGCRNRKTSL KAALLDQRVV 

       190        200        210        220        230        240 
AGLGNIYVCE ALFRARLSPR RLAATLAMKT GAPSERAERL VGAIRDVLNQ AIEAGGSSLR 

       250        260        270        280        290 
DHRQTTGELG YFQHSFQVYD REGDKCRTPA CKGAVKRFTQ NGRSTFWCPV CQT 

« Hide

References

[1]"Genome sequence of the chemolithoautotrophic nitrite-oxidizing bacterium Nitrobacter winogradskyi Nb-255."
Starkenburg S.R., Chain P.S.G., Sayavedra-Soto L.A., Hauser L., Land M.L., Larimer F.W., Malfatti S.A., Klotz M.G., Bottomley P.J., Arp D.J., Hickey W.J.
Appl. Environ. Microbiol. 72:2050-2063(2006) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: Nb-255 / ATCC 25391.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000115 Genomic DNA. Translation: ABA03308.1.
RefSeqYP_316660.1. NC_007406.1.

3D structure databases

ProteinModelPortalQ3SWN3.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING323098.Nwi_0040.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABA03308; ABA03308; Nwi_0040.
GeneID3675163.
KEGGnwi:Nwi_0040.
PATRIC22696375. VBINitWin102302_0044.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0266.
HOGENOMHOG000020881.
KOK10563.
OMARREKFMN.
OrthoDBEOG6QP131.
ProtClustDBPRK01103.

Enzyme and pathway databases

BioCycNWIN323098:GJEG-40-MONOMER.

Family and domain databases

HAMAPMF_00103. Fapy_DNA_glycosyl.
InterProIPR015886. DNA_glyclase/AP_lyase_DNA-bd.
IPR015887. DNA_glyclase_Znf_dom_DNA_BS.
IPR000191. DNA_glycosylase/AP_lyase.
IPR012319. DNA_glycosylase/AP_lyase_cat.
IPR020629. Formamido-pyr_DNA_Glyclase.
IPR010979. Ribosomal_S13-like_H2TH.
IPR000214. Znf_DNA_glyclase/AP_lyase.
IPR010663. Znf_DNA_glyclase/IsotRNA_synth.
[Graphical view]
PfamPF01149. Fapy_DNA_glyco. 1 hit.
PF06831. H2TH. 1 hit.
PF06827. zf-FPG_IleRS. 1 hit.
[Graphical view]
SMARTSM00898. Fapy_DNA_glyco. 1 hit.
[Graphical view]
SUPFAMSSF46946. SSF46946. 1 hit.
SSF81624. SSF81624. 1 hit.
TIGRFAMsTIGR00577. fpg. 1 hit.
PROSITEPS51068. FPG_CAT. 1 hit.
PS01242. ZF_FPG_1. 1 hit.
PS51066. ZF_FPG_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameFPG_NITWN
AccessionPrimary (citable) accession number: Q3SWN3
Entry history
Integrated into UniProtKB/Swiss-Prot: March 21, 2006
Last sequence update: January 23, 2007
Last modified: February 19, 2014
This is version 65 of the entry and version 3 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families