ID A0A091QXR7_MERNU Unreviewed; 315 AA.
AC A0A091QXR7;
DT 26-NOV-2014, integrated into UniProtKB/TrEMBL.
DT 26-NOV-2014, sequence version 1.
DT 27-MAR-2024, entry version 33.
DE RecName: Full=DNA polymerase {ECO:0000256|RuleBase:RU366014};
DE EC=2.7.7.7 {ECO:0000256|RuleBase:RU366014};
DE Flags: Fragment;
GN ORFNames=N331_01489 {ECO:0000313|EMBL:KFQ31749.1};
OS Merops nubicus (Northern carmine bee-eater).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda;
OC Coelurosauria; Aves; Neognathae; Coraciiformes; Meropidae; Merops.
OX NCBI_TaxID=57421 {ECO:0000313|EMBL:KFQ31749.1, ECO:0000313|Proteomes:UP000052967};
RN [1] {ECO:0000313|EMBL:KFQ31749.1, ECO:0000313|Proteomes:UP000052967}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BGI_N331 {ECO:0000313|EMBL:KFQ31749.1};
RA Zhang G., Li C.;
RT "Genome evolution of avian class.";
RL Submitted (APR-2014) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: DNA polymerase that functions in several pathways of DNA
CC repair. Involved in base excision repair (BER) responsible for repair
CC of lesions that give rise to abasic (AP) sites in DNA. Also contributes
CC to DNA double-strand break repair by non-homologous end joining and
CC homologous recombination. Has both template-dependent and template-
CC independent (terminal transferase) DNA polymerase activities. Has also
CC a 5'-deoxyribose-5-phosphate lyase (dRP lyase) activity.
CC {ECO:0000256|RuleBase:RU366014}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2'-deoxyribonucleotide-(2'-deoxyribose 5'-phosphate)-2'-
CC deoxyribonucleotide-DNA = a 3'-end 2'-deoxyribonucleotide-(2,3-
CC dehydro-2,3-deoxyribose 5'-phosphate)-DNA + a 5'-end 5'-monophospho-
CC 2'-deoxyribonucleoside-DNA + H(+); Xref=Rhea:RHEA:66592, Rhea:RHEA-
CC COMP:13180, Rhea:RHEA-COMP:16897, Rhea:RHEA-COMP:17067,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:136412, ChEBI:CHEBI:157695,
CC ChEBI:CHEBI:167181; EC=4.2.99.18;
CC Evidence={ECO:0000256|ARBA:ARBA00024490};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 2'-deoxyribonucleoside 5'-triphosphate + DNA(n) =
CC diphosphate + DNA(n+1); Xref=Rhea:RHEA:22508, Rhea:RHEA-COMP:17339,
CC Rhea:RHEA-COMP:17340, ChEBI:CHEBI:33019, ChEBI:CHEBI:61560,
CC ChEBI:CHEBI:173112; EC=2.7.7.7;
CC Evidence={ECO:0000256|ARBA:ARBA00024632,
CC ECO:0000256|RuleBase:RU366014};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 5'-end 2'-deoxyribose-2'-deoxyribonucleotide-DNA = (2E,4S)-
CC 4-hydroxypenten-2-al-5-phosphate + a 5'-end 5'-monophospho-2'-
CC deoxyribonucleoside-DNA + H(+); Xref=Rhea:RHEA:76255, Rhea:RHEA-
CC COMP:13180, Rhea:RHEA-COMP:18657, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:136412, ChEBI:CHEBI:195194, ChEBI:CHEBI:195195;
CC Evidence={ECO:0000256|ARBA:ARBA00035582};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496}.
CC Nucleus {ECO:0000256|ARBA:ARBA00004123, ECO:0000256|RuleBase:RU366014}.
CC -!- SIMILARITY: Belongs to the DNA polymerase type-X family.
CC {ECO:0000256|ARBA:ARBA00008323, ECO:0000256|RuleBase:RU366014}.
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DR EMBL; KK708342; KFQ31749.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A091QXR7; -.
DR Proteomes; UP000052967; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0140078; F:class I DNA-(apurinic or apyrimidinic site) endonuclease activity; IEA:RHEA.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003887; F:DNA-directed DNA polymerase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006281; P:DNA repair; IEA:UniProtKB-KW.
DR GO; GO:0006260; P:DNA replication; IEA:UniProtKB-KW.
DR CDD; cd00141; NT_POLXc; 1.
DR Gene3D; 1.10.150.20; 5' to 3' exonuclease, C-terminal subdomain; 1.
DR Gene3D; 3.30.460.10; Beta Polymerase, domain 2; 1.
DR Gene3D; 1.10.150.110; DNA polymerase beta, N-terminal domain-like; 1.
DR Gene3D; 3.30.210.10; DNA polymerase, thumb domain; 1.
DR InterPro; IPR002054; DNA-dir_DNA_pol_X.
DR InterPro; IPR019843; DNA_pol-X_BS.
DR InterPro; IPR010996; DNA_pol_b-like_N.
DR InterPro; IPR028207; DNA_pol_B_palm_palm.
DR InterPro; IPR018944; DNA_pol_lambd_fingers_domain.
DR InterPro; IPR027421; DNA_pol_lamdba_lyase_dom_sf.
DR InterPro; IPR037160; DNA_Pol_thumb_sf.
DR InterPro; IPR022312; DNA_pol_X.
DR InterPro; IPR002008; DNA_pol_X_beta-like.
DR InterPro; IPR003583; Hlx-hairpin-Hlx_DNA-bd_motif.
DR InterPro; IPR043519; NT_sf.
DR InterPro; IPR029398; PolB_thumb.
DR PANTHER; PTHR11276:SF42; DNA POLYMERASE BETA; 1.
DR PANTHER; PTHR11276; DNA POLYMERASE TYPE-X FAMILY MEMBER; 1.
DR Pfam; PF14792; DNA_pol_B_palm; 1.
DR Pfam; PF14791; DNA_pol_B_thumb; 1.
DR Pfam; PF10391; DNA_pol_lambd_f; 1.
DR Pfam; PF14716; HHH_8; 1.
DR PRINTS; PR00869; DNAPOLX.
DR PRINTS; PR00870; DNAPOLXBETA.
DR SMART; SM00278; HhH1; 2.
DR SMART; SM00483; POLXc; 1.
DR SUPFAM; SSF47802; DNA polymerase beta, N-terminal domain-like; 1.
DR SUPFAM; SSF81301; Nucleotidyltransferase; 1.
DR SUPFAM; SSF81585; PsbU/PolX domain-like; 1.
DR PROSITE; PS00522; DNA_POLYMERASE_X; 1.
PE 3: Inferred from homology;
KW DNA damage {ECO:0000256|ARBA:ARBA00022763, ECO:0000256|RuleBase:RU366014};
KW DNA repair {ECO:0000256|ARBA:ARBA00023204, ECO:0000256|RuleBase:RU366014};
KW DNA replication {ECO:0000256|ARBA:ARBA00022705};
KW DNA synthesis {ECO:0000256|ARBA:ARBA00022634};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125};
KW DNA-directed DNA polymerase {ECO:0000256|ARBA:ARBA00022932,
KW ECO:0000256|RuleBase:RU366014}; Lyase {ECO:0000256|ARBA:ARBA00023239};
KW Methylation {ECO:0000256|ARBA:ARBA00022481};
KW Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695,
KW ECO:0000256|RuleBase:RU366014};
KW Nucleus {ECO:0000256|ARBA:ARBA00023242, ECO:0000256|RuleBase:RU366014};
KW Reference proteome {ECO:0000313|Proteomes:UP000052967};
KW Sodium {ECO:0000256|ARBA:ARBA00023053};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU366014};
KW Ubl conjugation {ECO:0000256|ARBA:ARBA00022843}.
FT DOMAIN 1..314
FT /note="DNA-directed DNA polymerase X"
FT /evidence="ECO:0000259|SMART:SM00483"
FT DOMAIN 37..56
FT /note="Helix-hairpin-helix DNA-binding motif class 1"
FT /evidence="ECO:0000259|SMART:SM00278"
FT DOMAIN 78..97
FT /note="Helix-hairpin-helix DNA-binding motif class 1"
FT /evidence="ECO:0000259|SMART:SM00278"
FT ACT_SITE 52
FT /note="Nucleophile; Schiff-base intermediate with DNA; for
FT 5'-dRP lyase activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR622312-50"
FT NON_TER 1
FT /evidence="ECO:0000313|EMBL:KFQ31749.1"
FT NON_TER 315
FT /evidence="ECO:0000313|EMBL:KFQ31749.1"
SQ SEQUENCE 315 AA; 36112 MW; 69B8F3E01DD4A613 CRC64;
ELANYERNVN RAIHKYNAYR KAASVISRYP SKIRSGAEAK KLDGVGAKIA EKIDEFLSTG
KLRKLEKIRQ DDTSASINLL TRVTGIGPAA ARKFVEEGIK TLEDLRKNEH KLTHHQRIGL
KYFEDFEKRI PREEMLQMQE IVLKEVKKLD PNYIATVCGS FRRGAESSGD MDVLLTHPSF
TSESSKQSKL LHQVVEQLEK VHFVTDMLSK GDTKFMGVCQ LPDKEDGTAY PHRRIDIRLI
PKDQYYCGVL YFTGSDIFNK NMRTHALEMG FTINEYTIRP LGVTGVAGEA LPVECEEDIF
DYIQWKYREP KDRSE
//
