ID T5AMY4_OPHSC Unreviewed; 396 AA.
AC T5AMY4;
DT 13-NOV-2013, integrated into UniProtKB/TrEMBL.
DT 13-NOV-2013, sequence version 1.
DT 24-JAN-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=OCS_00509 {ECO:0000313|EMBL:EQL03781.1};
OS Ophiocordyceps sinensis (strain Co18 / CGMCC 3.14243) (Yarsagumba
OS caterpillar fungus) (Hirsutella sinensis).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC Hypocreomycetidae; Hypocreales; Ophiocordycipitaceae; Ophiocordyceps.
OX NCBI_TaxID=911162 {ECO:0000313|EMBL:EQL03781.1, ECO:0000313|Proteomes:UP000019374};
RN [1] {ECO:0000313|EMBL:EQL03781.1, ECO:0000313|Proteomes:UP000019374}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Co18 / CGMCC 3.14243 {ECO:0000313|Proteomes:UP000019374};
RC TISSUE=Fruit-body {ECO:0000313|EMBL:EQL03781.1};
RX DOI=10.1007/s11434-013-5929-5;
RA Hu X., Zhang Y., Xiao G., Zheng P., Xia Y., Zhang X., St Leger R.J.,
RA Liu X., Wang C.;
RT "Genome survey uncovers the secrets of sex and lifestyle in caterpillar
RT fungus.";
RL Chin. Sci. Bull. 58:2846-2854(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}.
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DR EMBL; KE652193; EQL03781.1; -; Genomic_DNA.
DR AlphaFoldDB; T5AMY4; -.
DR eggNOG; KOG2519; Eukaryota.
DR HOGENOM; CLU_032444_1_1_1; -.
DR Proteomes; UP000019374; 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; IPR019974; XPG_CS.
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.
DR PROSITE; PS00841; XPG_1; 1.
DR PROSITE; PS00842; XPG_2; 1.
PE 3: Inferred from homology;
KW DNA damage {ECO:0000256|ARBA:ARBA00022763, ECO:0000256|HAMAP-
KW Rule:MF_03140};
KW DNA repair {ECO:0000256|ARBA:ARBA00023204, ECO:0000256|HAMAP-
KW 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|ARBA:ARBA00022553, ECO:0000256|HAMAP-
KW Rule:MF_03140}; Reference proteome {ECO:0000313|Proteomes:UP000019374}.
FT DOMAIN 1..107
FT /note="XPG N-terminal"
FT /evidence="ECO:0000259|SMART:SM00485"
FT DOMAIN 146..218
FT /note="XPG-I"
FT /evidence="ECO:0000259|SMART:SM00484"
FT REGION 356..396
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 356..389
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 396 AA; 44878 MW; 8925D10A4946563A CRC64;
MGIKQLFQII KEEAPDSIKE GEIKNHFGRK VAIDASMSIY SFLIAVRSDG QQLMNESGET
TSHLMGMFYR TLRMVDNGIK PLYVFDGAPP KLKSGELAKR FQRKQEATEG LEEAKETGTA
EDVEKFSRRT VRVTREHNEE CRRLLKLMGI PYIVAPTEAE AQCAALAQAG KVYAAASEDM
DTLCFNTPIL LRHLTFSEQR KEPILEIRLD KVLQGLNMER EQFVDLCILL GCDYLDPIPK
VGPTTALKLI REHGSLEKVV EAIEKDSKKK YTIPEDWPFK DARHLFFEPD VRNADDPLCD
FKWEKPDIEG LVTFLVTEKG FSEDRVRSGG ARLEKSLKSS QQARLQGFFK PVAKTDEETA
AHKRKLEAKN EEKKKKLKRD KKDKSTAKAK PRAGGA
//
