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Q21EE3 (FPG_SACD2) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 62. 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:Sde_3681
OrganismSaccharophagus degradans (strain 2-40 / ATCC 43961 / DSM 17024) [Complete proteome] [HAMAP]
Taxonomic identifier203122 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaAlteromonadalesAlteromonadaceaeSaccharophagus

Protein attributes

Sequence length271 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 – 271270Formamidopyrimidine-DNA glycosylase HAMAP-Rule MF_00103
PRO_1000008767

Regions

Zinc finger237 – 27135FPG-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 site2611Proton donor; for delta-elimination activity By similarity
Binding site911DNA By similarity
Binding site1101DNA By similarity
Binding site1521DNA By similarity

Sequences

Sequence LengthMass (Da)Tools
Q21EE3 [UniParc].

Last modified April 18, 2006. Version 1.
Checksum: CA906875517DA9C9

FASTA27130,365
        10         20         30         40         50         60 
MPELPEVETT RRGILPHLEG KRVKAVSVRN RSLRWPIPAD LAQQIQNKTL RTIHRRGKYL 

        70         80         90        100        110        120 
LLEFANGHVI WHLGMSGSLR IIKADEPPMV HDHVDIAFGG NLALRYTDPR RFGAVLWTNE 

       130        140        150        160        170        180 
AILEHKLLNH LGPEPLTDAF NSAYLFDKSR KRSQSVKTWI MDSKVVVGVG NIYANEALFN 

       190        200        210        220        230        240 
SAIHPLKAAG KLSQKQCDIF CSEIKSVLAK AIEQGGTTLR DFVGGDGKPG YFAQELNVYG 

       250        260        270 
RGGKACKKCR KPLTEKKLGQ RTTVYCTHCQ K 

« Hide

References

[1]"Complete genome sequence of the complex carbohydrate-degrading marine bacterium, Saccharophagus degradans strain 2-40 T."
Weiner R.M., Taylor L.E. II, Henrissat B., Hauser L., Land M., Coutinho P.M., Rancurel C., Saunders E.H., Longmire A.G., Zhang H., Bayer E.A., Gilbert H.J., Larimer F., Zhulin I.B., Ekborg N.A., Lamed R., Richardson P.M., Borovok I., Hutcheson S.
PLoS Genet. 4:E1000087-E1000087(2008) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: 2-40 / ATCC 43961 / DSM 17024.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000282 Genomic DNA. Translation: ABD82936.1.
RefSeqYP_529148.1. NC_007912.1.

3D structure databases

ProteinModelPortalQ21EE3.
SMRQ21EE3. Positions 2-271.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING203122.Sde_3681.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABD82936; ABD82936; Sde_3681.
GeneID3966638.
KEGGsde:Sde_3681.
PATRIC23406583. VBISacDeg56404_3952.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0266.
HOGENOMHOG000020881.
KOK10563.
OMAIYCSESL.
OrthoDBEOG6QP131.

Enzyme and pathway databases

BioCycSDEG203122:GI2M-3731-MONOMER.

Family and domain databases

HAMAPMF_00103. Fapy_DNA_glycosyl.
InterProIPR015886. DNA_glyclase/AP_lyase_DNA-bd.
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.
PS51066. ZF_FPG_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameFPG_SACD2
AccessionPrimary (citable) accession number: Q21EE3
Entry history
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: April 18, 2006
Last modified: May 14, 2014
This is version 62 of the entry and version 1 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