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Q1G9A3 (FPG_LACDA) Reviewed, UniProtKB/Swiss-Prot

Last modified February 19, 2014. Version 60. 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:Ldb1511
OrganismLactobacillus delbrueckii subsp. bulgaricus (strain ATCC 11842 / DSM 20081) [Complete proteome] [HAMAP]
Taxonomic identifier390333 [NCBI]
Taxonomic lineageBacteriaFirmicutesBacilliLactobacillalesLactobacillaceaeLactobacillus

Protein attributes

Sequence length273 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 – 273272Formamidopyrimidine-DNA glycosylase HAMAP-Rule MF_00103
PRO_1000008708

Regions

Zinc finger238 – 27235FPG-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 site2621Proton donor; for delta-elimination activity By similarity
Binding site911DNA By similarity
Binding site1101DNA By similarity
Binding site1531DNA By similarity

Sequences

Sequence LengthMass (Da)Tools
Q1G9A3 [UniParc].

Last modified June 27, 2006. Version 1.
Checksum: 679F878506F68A32

FASTA27331,043
        10         20         30         40         50         60 
MPEMPEVETV RRTLRPLVVG KTIDHVDIWY DKVITGDPET FKRELKGKTF TAVDRYAKFL 

        70         80         90        100        110        120 
LFRLGDLTVV SHLRMEGKYH LTTWDAPVDK HEHLQFAFTD GSSLRYADVR KFGRLQLVET 

       130        140        150        160        170        180 
GTEFQVTGLK NLGVEANSPE FRLDYFEKGL KKRSMNIKSL LMSQTLVAGL GNIYVDEVLW 

       190        200        210        220        230        240 
QSRINPLTPA NELTKDQVKQ LHSAINETIE EATKYGGTTV HSFLNAEGGA GHYQEKLKVY 

       250        260        270 
GKEGQPCPRC GEDFVKIKIS GRGTTYCLHC QKR 

« Hide

References

[1]"The complete genome sequence of Lactobacillus bulgaricus reveals extensive and ongoing reductive evolution."
van de Guchte M., Penaud S., Grimaldi C., Barbe V., Bryson K., Nicolas P., Robert C., Oztas S., Mangenot S., Couloux A., Loux V., Dervyn R., Bossy R., Bolotin A., Batto J.-M., Walunas T., Gibrat J.-F., Bessieres P. expand/collapse author list , Weissenbach J., Ehrlich S.D., Maguin E.
Proc. Natl. Acad. Sci. U.S.A. 103:9274-9279(2006) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: ATCC 11842 / DSM 20081.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CR954253 Genomic DNA. Translation: CAI98311.1.
RefSeqYP_619337.1. NC_008054.1.

3D structure databases

ProteinModelPortalQ1G9A3.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING390333.Ldb1511.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaCAI98311; CAI98311; Ldb1511.
GeneID4083939.
KEGGldb:Ldb1511.
PATRIC22218486. VBILacDel123523_1360.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0266.
HOGENOMHOG000020885.
KOK10563.
OMAGKYHLTT.
OrthoDBEOG6QP131.
ProtClustDBPRK01103.

Enzyme and pathway databases

BioCycLDEL390333:GIXG-1491-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_LACDA
AccessionPrimary (citable) accession number: Q1G9A3
Entry history
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: June 27, 2006
Last modified: February 19, 2014
This is version 60 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