ID S7WB01_SPRLO Unreviewed; 343 AA.
AC S7WB01;
DT 16-OCT-2013, integrated into UniProtKB/TrEMBL.
DT 16-OCT-2013, sequence version 1.
DT 27-MAR-2024, entry version 53.
DE RecName: Full=Flap endonuclease 1 {ECO:0000256|HAMAP-Rule:MF_03140};
DE Short=FEN-1 {ECO:0000256|HAMAP-Rule:MF_03140};
DE EC=3.1.-.- {ECO:0000256|HAMAP-Rule:MF_03140};
DE AltName: Full=Flap structure-specific endonuclease 1 {ECO:0000256|HAMAP-Rule:MF_03140};
GN ORFNames=SLOPH_2215 {ECO:0000313|EMBL:EPR80140.1};
OS Spraguea lophii (strain 42_110) (Microsporidian parasite).
OC Eukaryota; Fungi; Fungi incertae sedis; Microsporidia; Spraguidae;
OC Spraguea.
OX NCBI_TaxID=1358809 {ECO:0000313|EMBL:EPR80140.1, ECO:0000313|Proteomes:UP000014978};
RN [1] {ECO:0000313|Proteomes:UP000014978}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=42_110 {ECO:0000313|Proteomes:UP000014978};
RX PubMed=23990793; DOI=10.1371/journal.pgen.1003676;
RA Campbell S.E., Williams T.A., Yousuf A., Soanes D.M., Paszkiewicz K.H.,
RA Williams B.A.P.;
RT "The genome of Spraguea lophii and the basis of host-microsporidian
RT interactions.";
RL PLoS Genet. 9:E1003676-E1003676(2013).
CC -!- FUNCTION: Structure-specific nuclease with 5'-flap endonuclease and 5'-
CC 3' exonuclease activities involved in DNA replication and repair.
CC During DNA replication, cleaves the 5'-overhanging flap structure that
CC is generated by displacement synthesis when DNA polymerase encounters
CC the 5'-end of a downstream Okazaki fragment. It enters the flap from
CC the 5'-end and then tracks to cleave the flap base, leaving a nick for
CC ligation. Also involved in the long patch base excision repair (LP-BER)
CC pathway, by cleaving within the apurinic/apyrimidinic (AP) site-
CC terminated flap. Acts as a genome stabilization factor that prevents
CC flaps from equilibrating into structures that lead to duplications and
CC deletions. Also possesses 5'-3' exonuclease activity on nicked or
CC gapped double-stranded DNA, and exhibits RNase H activity. Also
CC involved in replication and repair of rDNA and in repairing
CC mitochondrial DNA. {ECO:0000256|HAMAP-Rule:MF_03140}.
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03140};
CC Note=Binds 2 magnesium ions per subunit. They probably participate in
CC the reaction catalyzed by the enzyme. May bind an additional third
CC magnesium ion after substrate binding. {ECO:0000256|HAMAP-
CC Rule:MF_03140};
CC -!- SUBCELLULAR LOCATION: Nucleus, nucleolus {ECO:0000256|HAMAP-
CC Rule:MF_03140}. Nucleus, nucleoplasm {ECO:0000256|HAMAP-Rule:MF_03140}.
CC Mitochondrion {ECO:0000256|HAMAP-Rule:MF_03140}. Note=Resides mostly in
CC the nucleoli and relocalizes to the nucleoplasm upon DNA damage.
CC {ECO:0000256|HAMAP-Rule:MF_03140}.
CC -!- SIMILARITY: Belongs to the XPG/RAD2 endonuclease family. FEN1
CC subfamily. {ECO:0000256|HAMAP-Rule:MF_03140}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EPR80140.1}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; ATCN01000003; EPR80140.1; -; Genomic_DNA.
DR AlphaFoldDB; S7WB01; -.
DR STRING; 1358809.S7WB01; -.
DR VEuPathDB; MicrosporidiaDB:SLOPH_2215; -.
DR HOGENOM; CLU_032444_2_0_1; -.
DR InParanoid; S7WB01; -.
DR OMA; GSQDYDS; -.
DR OrthoDB; 5479162at2759; -.
DR Proteomes; UP000014978; Unassembled WGS sequence.
DR GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
DR GO; GO:0005730; C:nucleolus; IEA:UniProtKB-SubCell.
DR GO; GO:0005654; C:nucleoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008409; F:5'-3' exonuclease activity; IEA:UniProtKB-UniRule.
DR GO; GO:0017108; F:5'-flap endonuclease activity; IEA:UniProtKB-UniRule.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006284; P:base-excision repair; IEA:UniProtKB-UniRule.
DR GO; GO:0043137; P:DNA replication, removal of RNA primer; IEA:UniProtKB-UniRule.
DR CDD; cd09907; H3TH_FEN1-Euk; 1.
DR CDD; cd09867; PIN_FEN1; 1.
DR Gene3D; 1.10.150.20; 5' to 3' exonuclease, C-terminal subdomain; 1.
DR Gene3D; 3.40.50.1010; 5'-nuclease; 1.
DR HAMAP; MF_00614; Fen; 1.
DR InterPro; IPR036279; 5-3_exonuclease_C_sf.
DR InterPro; IPR023426; Flap_endonuc.
DR InterPro; IPR008918; HhH2.
DR InterPro; IPR029060; PIN-like_dom_sf.
DR InterPro; IPR006086; XPG-I_dom.
DR InterPro; IPR006084; XPG/Rad2.
DR InterPro; IPR006085; XPG_DNA_repair_N.
DR PANTHER; PTHR11081:SF9; FLAP ENDONUCLEASE 1; 1.
DR PANTHER; PTHR11081; FLAP ENDONUCLEASE FAMILY MEMBER; 1.
DR Pfam; PF00867; XPG_I; 1.
DR Pfam; PF00752; XPG_N; 1.
DR PRINTS; PR00853; XPGRADSUPER.
DR SMART; SM00279; HhH2; 1.
DR SMART; SM00484; XPGI; 1.
DR SMART; SM00485; XPGN; 1.
DR SUPFAM; SSF47807; 5' to 3' exonuclease, C-terminal subdomain; 1.
DR SUPFAM; SSF88723; PIN domain-like; 1.
PE 3: Inferred from homology;
KW Coiled coil {ECO:0000256|SAM:Coils};
KW DNA damage {ECO:0000256|HAMAP-Rule:MF_03140};
KW DNA repair {ECO:0000256|HAMAP-Rule:MF_03140};
KW DNA replication {ECO:0000256|ARBA:ARBA00022705, ECO:0000256|HAMAP-
KW Rule:MF_03140};
KW Endonuclease {ECO:0000256|ARBA:ARBA00022759, ECO:0000256|HAMAP-
KW Rule:MF_03140};
KW Exonuclease {ECO:0000256|ARBA:ARBA00022839, ECO:0000256|HAMAP-
KW Rule:MF_03140};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_03140};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_03140};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_03140}; Mitochondrion {ECO:0000256|HAMAP-Rule:MF_03140};
KW Nuclease {ECO:0000256|ARBA:ARBA00022722, ECO:0000256|HAMAP-Rule:MF_03140};
KW Nucleus {ECO:0000256|HAMAP-Rule:MF_03140};
KW Phosphoprotein {ECO:0000256|HAMAP-Rule:MF_03140};
KW Reference proteome {ECO:0000313|Proteomes:UP000014978}.
FT DOMAIN 1..105
FT /note="XPG N-terminal"
FT /evidence="ECO:0000259|SMART:SM00485"
FT DOMAIN 144..216
FT /note="XPG-I"
FT /evidence="ECO:0000259|SMART:SM00484"
FT COILED 95..122
FT /evidence="ECO:0000256|SAM:Coils"
SQ SEQUENCE 343 AA; 39459 MW; 64CFD0AC21644EB6 CRC64;
MGILQLSKVI KKHASNAIVL RPMEYFNGKT IAIDASMSIY QFLIAIRSDG VMLSGGETTS
HLVGMFYRTI RLVEKGIKIL YVFDGKPPEI KIQEIEKRNI RRAEAEEKYK EAEKDGDKEL
MAKFDKRKVK VGKIHVDECK KLLTLMGIPF VTAPSEAEAF CAYLAHKNIV YGVGTEDMDA
LTFGAPRLLR NLNAAESKKL PVEEYNLDKI LSQLDMKMEE FIDMCIILGC DYTQSLKGVG
PQKAVTFIRK YKKIEEILKH EKYTAVENWE YKNARLIFNT LGKEDAPLPN LDIRWNEINL
QNINEYLVKE KQFDEERVKK GIERLFKGKK KAKQGSLDDF FRK
//
