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P95744

- FPG_SYNEL

UniProt

P95744 - FPG_SYNEL

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Protein

Formamidopyrimidine-DNA glycosylase

Gene

mutM

Organism
Synechococcus elongatus
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi

Functioni

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.By similarity

Catalytic activityi

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

Cofactori

Binds 1 zinc ion per subunit.By similarity

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei2 – 21Schiff-base intermediate with DNABy similarity
Active sitei3 – 31Proton donorBy similarity
Active sitei60 – 601Proton donor; for beta-elimination activityBy similarity
Binding sitei94 – 941DNABy similarity
Binding sitei113 – 1131DNABy similarity
Active sitei267 – 2671Proton donor; for delta-elimination activityBy similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Zinc fingeri243 – 27735FPG-typeAdd
BLAST

GO - Molecular functioni

  1. damaged DNA binding Source: InterPro
  2. oxidized purine nucleobase lesion DNA N-glycosylase activity Source: UniProtKB-HAMAP
  3. zinc ion binding Source: UniProtKB-HAMAP

GO - Biological processi

  1. base-excision repair Source: InterPro
  2. nucleotide-excision repair Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Glycosidase, Hydrolase, Lyase

Keywords - Biological processi

DNA damage, DNA repair

Keywords - Ligandi

DNA-binding, Metal-binding, Zinc

Names & Taxonomyi

Protein namesi
Recommended name:
Formamidopyrimidine-DNA glycosylase (EC:3.2.2.23)
Short name:
Fapy-DNA glycosylase
Alternative name(s):
DNA-(apurinic or apyrimidinic site) lyase MutM (EC:4.2.99.18)
Short name:
AP lyase MutM
Gene namesi
Name:mutM
Synonyms:fpg
OrganismiSynechococcus elongatus
Taxonomic identifieri32046 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesSynechococcus

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11RemovedBy similarity
Chaini2 – 284283Formamidopyrimidine-DNA glycosylasePRO_0000170876Add
BLAST

Interactioni

Subunit structurei

Monomer.By similarity

Structurei

3D structure databases

ProteinModelPortaliP95744.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the FPG family.Curated
Contains 1 FPG-type zinc finger.Curated

Zinc finger

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Zinc fingeri243 – 27735FPG-typeAdd
BLAST

Keywords - Domaini

Zinc-finger

Family and domain databases

HAMAPiMF_00103. Fapy_DNA_glycosyl.
InterProiIPR015886. 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]
PfamiPF01149. Fapy_DNA_glyco. 1 hit.
PF06831. H2TH. 1 hit.
PF06827. zf-FPG_IleRS. 1 hit.
[Graphical view]
SMARTiSM00898. Fapy_DNA_glyco. 1 hit.
[Graphical view]
SUPFAMiSSF46946. SSF46946. 1 hit.
SSF81624. SSF81624. 1 hit.
TIGRFAMsiTIGR00577. fpg. 1 hit.
PROSITEiPS51068. FPG_CAT. 1 hit.
PS01242. ZF_FPG_1. 1 hit.
PS51066. ZF_FPG_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P95744-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MPELPEVETV RRGLELVTLK QPIVDVEVLL ARSIALPKEP QAFIEHLRDR
60 70 80 90 100
RIEQWQRRGK YLLATLDDGS RLVIHLRMSG QLLWLTTPQP PCPHTRVRWF
110 120 130 140 150
FPTRAELRFV DQRTFGRCWW LPPDCRVAEA IPALATLAPE PLSEAFTVAF
160 170 180 190 200
LAARLAHCRR SIKTALLDQS IVAGMGNIYA DESLFLSGLH PTQSAHTLTP
210 220 230 240 250
EQVQRLHGVI CQVLREGIAA GGTTIRTFMS PAGVNGHYGG QAWVYGRKGE
260 270 280
ACRVCGTTIE RLRLAGRSSH YCPQCQPLSS AIGK
Length:284
Mass (Da):31,716
Last modified:January 23, 2007 - v4
Checksum:iEE1FA9C445CCCC49
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
Y10290 Genomic DNA. Translation: CAA71333.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
Y10290 Genomic DNA. Translation: CAA71333.1 .

3D structure databases

ProteinModelPortali P95744.
ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

HAMAPi MF_00103. Fapy_DNA_glycosyl.
InterProi IPR015886. 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 ]
Pfami PF01149. Fapy_DNA_glyco. 1 hit.
PF06831. H2TH. 1 hit.
PF06827. zf-FPG_IleRS. 1 hit.
[Graphical view ]
SMARTi SM00898. Fapy_DNA_glyco. 1 hit.
[Graphical view ]
SUPFAMi SSF46946. SSF46946. 1 hit.
SSF81624. SSF81624. 1 hit.
TIGRFAMsi TIGR00577. fpg. 1 hit.
PROSITEi PS51068. FPG_CAT. 1 hit.
PS01242. ZF_FPG_1. 1 hit.
PS51066. ZF_FPG_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Molecular characterization and overexpression of the petF gene from Synechococcus elongatus: evidence for a second site of electrostatic interaction between ferredoxin and the PSI-D subunit."
    Floss B., Igloi G., Cassier-Chauvat C., Muehlenhoff U.
    Photosyn. Res. 54:63-71(1997)
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Entry informationi

Entry nameiFPG_SYNEL
AccessioniPrimary (citable) accession number: P95744
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 15, 1999
Last sequence update: January 23, 2007
Last modified: October 1, 2014
This is version 85 of the entry and version 4 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Multifunctional enzyme

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3