ID M7NMN5_PNEMU Unreviewed; 379 AA.
AC M7NMN5;
DT 29-MAY-2013, integrated into UniProtKB/TrEMBL.
DT 29-MAY-2013, sequence version 1.
DT 27-MAR-2024, entry version 63.
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=PNEG_03228 {ECO:0000313|EMBL:EMR08391.1};
OS Pneumocystis murina (strain B123) (Mouse pneumocystis pneumonia agent)
OS (Pneumocystis carinii f. sp. muris).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Taphrinomycotina;
OC Pneumocystomycetes; Pneumocystaceae; Pneumocystis.
OX NCBI_TaxID=1069680 {ECO:0000313|EMBL:EMR08391.1, ECO:0000313|Proteomes:UP000011958};
RN [1] {ECO:0000313|Proteomes:UP000011958}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=B123 {ECO:0000313|Proteomes:UP000011958};
RX PubMed=26899007; DOI=10.1038/ncomms10740;
RA Ma L., Chen Z., Huang D.W., Kutty G., Ishihara M., Wang H., Abouelleil A.,
RA Bishop L., Davey E., Deng R., Deng X., Fan L., Fantoni G., Fitzgerald M.,
RA Gogineni E., Goldberg J.M., Handley G., Hu X., Huber C., Jiao X., Jones K.,
RA Levin J.Z., Liu Y., Macdonald P., Melnikov A., Raley C., Sassi M.,
RA Sherman B.T., Song X., Sykes S., Tran B., Walsh L., Xia Y., Yang J.,
RA Young S., Zeng Q., Zheng X., Stephens R., Nusbaum C., Birren B.W.,
RA Azadi P., Lempicki R.A., Cuomo C.A., Kovacs J.A.;
RT "Genome analysis of three Pneumocystis species reveals adaptation
RT mechanisms to life exclusively in mammalian hosts.";
RL Nat. Commun. 7:10740-10740(2016).
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:EMR08391.1}.
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DR EMBL; AFWA02000010; EMR08391.1; -; Genomic_DNA.
DR RefSeq; XP_007875294.1; XM_007877103.1.
DR AlphaFoldDB; M7NMN5; -.
DR STRING; 1069680.M7NMN5; -.
DR GeneID; 19896915; -.
DR VEuPathDB; FungiDB:PNEG_03228; -.
DR eggNOG; KOG2519; Eukaryota.
DR HOGENOM; CLU_032444_2_0_1; -.
DR OMA; GSQDYDS; -.
DR OrthoDB; 5479162at2759; -.
DR Proteomes; UP000011958; 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:UP000011958}.
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..379
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 379 AA; 43327 MW; 19591A365714B473 CRC64;
MGIKHLRQLL EEHASSCIKL NNIDHYFGRK VAIDASMSIY QFLIAVRQQD GQQLMTETGE
TTSHLMGIFY RTLRMCDNGI KPCYVFDGSP PKLKSGELAK RLERREEAVK LHSEAKEIGS
IEDINKFSKR IIRVTREHNE ECKKLLKLMG IPCINAPCEA EAQCAALAKS GKVYAAASED
MDTLCFSTPI LLRHLTFSEQ KKEPISEVNL EKALKELYMP LEQFVDLCIL LGCDYCEPIK
GIGPKRALEL IREYKSLDTF ISSADGSKYQ IPENWPYKDA RDLFLNPDIT NPETLELKWE
SPDAKGLLEF LVKEKGFNEE RVNNGILRLE KALKSSQQVR LDSFFKVIPK LHEATSVEKR
KTEENTHANK KNRTNKKKK
//
