FEN1_BRUMA
ID FEN1_BRUMA Reviewed; 378 AA.
AC A8QCH0;
DT 11-JAN-2011, integrated into UniProtKB/Swiss-Prot.
DT 15-JAN-2008, sequence version 1.
DT 03-AUG-2022, entry version 70.
DE RecName: Full=Flap endonuclease 1 {ECO:0000255|HAMAP-Rule:MF_03140};
DE Short=FEN-1 {ECO:0000255|HAMAP-Rule:MF_03140};
DE EC=3.1.-.- {ECO:0000255|HAMAP-Rule:MF_03140};
DE AltName: Full=Flap structure-specific endonuclease 1 {ECO:0000255|HAMAP-Rule:MF_03140};
GN Name=FEN1 {ECO:0000255|HAMAP-Rule:MF_03140}; ORFNames=Bm1_49605;
OS Brugia malayi (Filarial nematode worm).
OC Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC Spirurina; Spiruromorpha; Filarioidea; Onchocercidae; Brugia.
OX NCBI_TaxID=6279;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=17885136; DOI=10.1126/science.1145406;
RA Ghedin E., Wang S., Spiro D., Caler E., Zhao Q., Crabtree J., Allen J.E.,
RA Delcher A.L., Guiliano D.B., Miranda-Saavedra D., Angiuoli S.V., Creasy T.,
RA Amedeo P., Haas B., El-Sayed N.M., Wortman J.R., Feldblyum T., Tallon L.,
RA Schatz M., Shumway M., Koo H., Salzberg S.L., Schobel S., Pertea M.,
RA Pop M., White O., Barton G.J., Carlow C.K.S., Crawford M.J., Daub J.,
RA Dimmic M.W., Estes C.F., Foster J.M., Ganatra M., Gregory W.F.,
RA Johnson N.M., Jin J., Komuniecki R., Korf I., Kumar S., Laney S., Li B.-W.,
RA Li W., Lindblom T.H., Lustigman S., Ma D., Maina C.V., Martin D.M.,
RA McCarter J.P., McReynolds L., Mitreva M., Nutman T.B., Parkinson J.,
RA Peregrin-Alvarez J.M., Poole C., Ren Q., Saunders L., Sluder A.E.,
RA Smith K., Stanke M., Unnasch T.R., Ware J., Wei A.D., Weil G.,
RA Williams D.J., Zhang Y., Williams S.A., Fraser-Liggett C., Slatko B.,
RA Blaxter M.L., Scott A.L.;
RT "Draft genome of the filarial nematode parasite Brugia malayi.";
RL Science 317:1756-1760(2007).
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:0000255|HAMAP-Rule:MF_03140}.
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|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:0000255|HAMAP-
CC Rule:MF_03140};
CC -!- SUBUNIT: Interacts with PCNA. Three molecules of FEN1 bind to one PCNA
CC trimer with each molecule binding to one PCNA monomer. PCNA stimulates
CC the nuclease activity without altering cleavage specificity.
CC {ECO:0000255|HAMAP-Rule:MF_03140}.
CC -!- SUBCELLULAR LOCATION: Nucleus, nucleolus {ECO:0000255|HAMAP-
CC Rule:MF_03140}. Nucleus, nucleoplasm {ECO:0000255|HAMAP-Rule:MF_03140}.
CC Mitochondrion {ECO:0000255|HAMAP-Rule:MF_03140}. Note=Resides mostly in
CC the nucleoli and relocalizes to the nucleoplasm upon DNA damage.
CC {ECO:0000255|HAMAP-Rule:MF_03140}.
CC -!- PTM: Phosphorylated. Phosphorylation upon DNA damage induces
CC relocalization to the nuclear plasma. {ECO:0000255|HAMAP-
CC Rule:MF_03140}.
CC -!- SIMILARITY: Belongs to the XPG/RAD2 endonuclease family. FEN1
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_03140}.
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; DS239429; EDP30068.1; -; Genomic_DNA.
DR RefSeq; XP_001901388.1; XM_001901353.1.
DR AlphaFoldDB; A8QCH0; -.
DR SMR; A8QCH0; -.
DR STRING; 6279.A8QCH0; -.
DR PRIDE; A8QCH0; -.
DR EnsemblMetazoa; Bm13951a.1; Bm13951a.1; WBGene00234212.
DR GeneID; 6104806; -.
DR KEGG; bmy:BM_BM13951; -.
DR WBParaSite; Bm13951a.1; Bm13951a.1; WBGene00234212.
DR CTD; 6104806; -.
DR HOGENOM; CLU_032444_2_0_1; -.
DR InParanoid; A8QCH0; -.
DR OMA; GSQDYDS; -.
DR OrthoDB; 1094524at2759; -.
DR Proteomes; UP000006672; 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 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; PTHR11081; 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; SSF47807; 1.
DR SUPFAM; SSF88723; SSF88723; 1.
DR PROSITE; PS00841; XPG_1; 1.
DR PROSITE; PS00842; XPG_2; 1.
PE 3: Inferred from homology;
KW DNA damage; DNA repair; DNA replication; Endonuclease; Exonuclease;
KW Hydrolase; Magnesium; Metal-binding; Mitochondrion; Nuclease; Nucleus;
KW Phosphoprotein; Reference proteome.
FT CHAIN 1..378
FT /note="Flap endonuclease 1"
FT /id="PRO_0000403511"
FT REGION 1..104
FT /note="N-domain"
FT REGION 90..113
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 122..253
FT /note="I-domain"
FT REGION 336..344
FT /note="Interaction with PCNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT REGION 348..378
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 92..113
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 353..368
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 34
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 47
FT /ligand="DNA"
FT /ligand_id="ChEBI:CHEBI:16991"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 70
FT /ligand="DNA"
FT /ligand_id="ChEBI:CHEBI:16991"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 86
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 158
FT /ligand="DNA"
FT /ligand_id="ChEBI:CHEBI:16991"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 158
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 160
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 179
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 181
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 231
FT /ligand="DNA"
FT /ligand_id="ChEBI:CHEBI:16991"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 233
FT /ligand="DNA"
FT /ligand_id="ChEBI:CHEBI:16991"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
FT BINDING 233
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03140"
SQ SEQUENCE 378 AA; 42844 MW; 8E9DAD594F202030 CRC64;
MGVKDLSKVI GDHSPNSIRL KEFKGYFGRK VAVDASMCLY QFLIAVRQDG SQLQTESGET
TSHLLGMFYR TIRMIDNGIK PVYVFDGKPP QMKTSELEKR TERRTEAEKQ RNDAVELGDE
TSVNKFEKRL VKVTKEQSEE AKRLVTLMGI PVLDAPCEAE AQCAALAKAG KVFATVSEDM
DALTFGSPIL LRQMIASEAK KLPVKEMNLN QVLKDFGMNM GQFVDLCILL GCDYVSTIRG
IGPKKAFELI KKYECIENVL ETINQTKYPI PQDWQYKEAR RLFLEPDVMN CENLELVWKE
PDVEGIVQFL CVEKSFNEDR VRGSLTRMQK GRQAAQQARI DSFFSVSKVV TSETTKRKNE
EKNNLKKRGP SLGKKAKK
