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Protein

Formamidopyrimidine-DNA glycosylase

Gene

mutM

Organism
Exiguobacterium sibiricum (strain DSM 17290 / JCM 13490 / 255-15)
Status
Reviewed-Annotation score: -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.UniRule annotation

Catalytic activityi

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

Cofactori

Zn2+UniRule annotationNote: Binds 1 zinc ion per subunit.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei2Schiff-base intermediate with DNAUniRule annotation1
Active sitei3Proton donorUniRule annotation1
Active sitei59Proton donor; for beta-elimination activityUniRule annotation1
Binding sitei92DNAUniRule annotation1
Binding sitei111DNAUniRule annotation1
Binding sitei155DNAUniRule annotation1
Active sitei263Proton donor; for delta-elimination activityUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri239 – 273FPG-typeUniRule annotationAdd BLAST35

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionDNA-binding, Glycosidase, Hydrolase, Lyase, Multifunctional enzyme
Biological processDNA damage, DNA repair
LigandMetal-binding, Zinc

Names & Taxonomyi

Protein namesi
Recommended name:
Formamidopyrimidine-DNA glycosylaseUniRule annotation (EC:3.2.2.23UniRule annotation)
Short name:
Fapy-DNA glycosylaseUniRule annotation
Alternative name(s):
DNA-(apurinic or apyrimidinic site) lyase MutMUniRule annotation (EC:4.2.99.18UniRule annotation)
Short name:
AP lyase MutMUniRule annotation
Gene namesi
Name:mutMUniRule annotation
Synonyms:fpgUniRule annotation
Ordered Locus Names:Exig_2201
OrganismiExiguobacterium sibiricum (strain DSM 17290 / JCM 13490 / 255-15)
Taxonomic identifieri262543 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesBacillales Family XII. Incertae SedisExiguobacterium
Proteomesi
  • UP000001681 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedBy similarity
ChainiPRO_10000940462 – 276Formamidopyrimidine-DNA glycosylaseAdd BLAST275

Interactioni

Subunit structurei

Monomer.UniRule annotation

Protein-protein interaction databases

STRINGi262543.Exig_2201

Structurei

3D structure databases

ProteinModelPortaliB1YKA0
SMRiB1YKA0
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the FPG family.UniRule annotation

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri239 – 273FPG-typeUniRule annotationAdd BLAST35

Keywords - Domaini

Zinc-finger

Phylogenomic databases

eggNOGiENOG4105ERD Bacteria
COG0266 LUCA
HOGENOMiHOG000020885
KOiK10563
OMAiGVHLRMT
OrthoDBiPOG091H01RH

Family and domain databases

Gene3Di3.20.190.10, 1 hit
HAMAPiMF_00103 Fapy_DNA_glycosyl, 1 hit
InterProiView protein in InterPro
IPR015886 DNA_glyclase/AP_lyase_DNA-bd
IPR015887 DNA_glyclase_Znf_dom_DNA_BS
IPR020629 Formamido-pyr_DNA_Glyclase
IPR012319 FPG_cat
IPR035937 MutM-like_N-ter
IPR010979 Ribosomal_S13-like_H2TH
IPR000214 Znf_DNA_glyclase/AP_lyase
IPR010663 Znf_FPG/IleRS
PfamiView protein in Pfam
PF01149 Fapy_DNA_glyco, 1 hit
PF06831 H2TH, 1 hit
PF06827 zf-FPG_IleRS, 1 hit
SMARTiView protein in SMART
SM00898 Fapy_DNA_glyco, 1 hit
SM01232 H2TH, 1 hit
SUPFAMiSSF46946 SSF46946, 1 hit
SSF81624 SSF81624, 1 hit
TIGRFAMsiTIGR00577 fpg, 1 hit
PROSITEiView protein in PROSITE
PS51068 FPG_CAT, 1 hit
PS01242 ZF_FPG_1, 1 hit
PS51066 ZF_FPG_2, 1 hit

Sequencei

Sequence statusi: Complete.

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

B1YKA0-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPELPEVETV RRSLERTVSG KTISSVKVFH PKMIRGMEVA PFVDALKQER
60 70 80 90 100
IERVERRGKF LLFTFDRFYL VSHLRMEGKY FPYPQAIEKD KHTHVIFRFT
110 120 130 140 150
DGSELHYNDV RKFGTMELRE KETAMSVPPL AQLEREPFDP TFTAEVLAEN
160 170 180 190 200
LIRKKRSPIK TSLLDQSIFL GLGNIYVDET LFAARVHPLT KAGALTLDDI
210 220 230 240 250
SRIHAAGVDV LAKAVESGGS TIRSYVSPTG KGEFQLQLAV YGQTGAPCPR
260 270
CGTAIEKIKV GGRGTHFCPT CQQVAL
Length:276
Mass (Da):30,969
Last modified:May 20, 2008 - v1
Checksum:i19E866B2976CB51A
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001022 Genomic DNA Translation: ACB61653.1
RefSeqiWP_012371070.1, NC_010556.1

Genome annotation databases

EnsemblBacteriaiACB61653; ACB61653; Exig_2201
GeneIDi31770321
KEGGiesi:Exig_2201

Similar proteinsi

Entry informationi

Entry nameiFPG_EXIS2
AccessioniPrimary (citable) accession number: B1YKA0
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 24, 2009
Last sequence update: May 20, 2008
Last modified: May 23, 2018
This is version 66 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, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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