ID A0A1E3QNQ2_9ASCO Unreviewed; 385 AA.
AC A0A1E3QNQ2;
DT 18-JAN-2017, integrated into UniProtKB/TrEMBL.
DT 18-JAN-2017, sequence version 1.
DT 27-MAR-2024, entry version 33.
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=BABINDRAFT_162144 {ECO:0000313|EMBL:ODQ79074.1};
OS Babjeviella inositovora NRRL Y-12698.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; CUG-Ser1 clade incertae sedis; Babjeviella.
OX NCBI_TaxID=984486 {ECO:0000313|EMBL:ODQ79074.1, ECO:0000313|Proteomes:UP000094336};
RN [1] {ECO:0000313|Proteomes:UP000094336}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NRRL Y-12698 {ECO:0000313|Proteomes:UP000094336};
RG DOE Joint Genome Institute;
RA Riley R., Haridas S., Wolfe K.H., Lopes M.R., Hittinger C.T., Goker M.,
RA Salamov A., Wisecaver J., Long T.M., Aerts A.L., Barry K., Choi C.,
RA Clum A., Coughlan A.Y., Deshpande S., Douglass A.P., Hanson S.J.,
RA Klenk H.-P., Labutti K., Lapidus A., Lindquist E., Lipzen A.,
RA Meier-Kolthoff J.P., Ohm R.A., Otillar R.P., Pangilinan J., Peng Y.,
RA Rokas A., Rosa C.A., Scheuner C., Sibirny A.A., Slot J.C., Stielow J.B.,
RA Sun H., Kurtzman C.P., Blackwell M., Grigoriev I.V., Jeffries T.W.;
RT "Comparative genomics of biotechnologically important yeasts.";
RL Submitted (MAY-2016) to the EMBL/GenBank/DDBJ databases.
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; KV454433; ODQ79074.1; -; Genomic_DNA.
DR RefSeq; XP_018984402.1; XM_019129195.1.
DR AlphaFoldDB; A0A1E3QNQ2; -.
DR STRING; 984486.A0A1E3QNQ2; -.
DR GeneID; 30147048; -.
DR OrthoDB; 5479162at2759; -.
DR Proteomes; UP000094336; 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|ARBA:ARBA00023242, ECO:0000256|HAMAP-Rule:MF_03140};
KW Phosphoprotein {ECO:0000256|ARBA:ARBA00022553, ECO:0000256|HAMAP-
KW Rule:MF_03140}; Reference proteome {ECO:0000313|Proteomes:UP000094336}.
FT DOMAIN 1..108
FT /note="XPG N-terminal"
FT /evidence="ECO:0000259|SMART:SM00485"
FT DOMAIN 147..219
FT /note="XPG-I"
FT /evidence="ECO:0000259|SMART:SM00484"
FT REGION 358..385
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 358..372
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 385 AA; 43129 MW; 47DF0757717B893E CRC64;
MGIKGLNRLI ADNAPTAIRA AEIKSFFGRK VAIHASMCLY QFLIAVRQQD GQQLTNEDGQ
TTSHLMGMFY RTLRMVDNGI KPCYVFDGKP PLMKGGELEK RTAKREHASK QIEELKEAGT
LEEVGKFERR LVRVTKEQND EAKHLLSLMG IPYVEAPCEA EAQCAALAKA GKVFAAASED
MDTLCFETPY LLRNLTFSEA RKLPINEIKY ETVAEELGMD RAMFVDLCIL LGCDYCETIR
GVGPVTALKL IKEHGSLEAI VEAIESNPKS KYVVPEDWPY KQARELFLNP EVKDASEIEL
KWSEPNEEKL IEYMVQRNGF SEERIKAGIE KLKKGLKGGV QGRLDGFFSV IPKTKEQLEA
AKKKRSDSSA ASKNKKAKSA AKKRK
//