ID H2IXL1_RAHAC Unreviewed; 250 AA.
AC H2IXL1;
DT 21-MAR-2012, integrated into UniProtKB/TrEMBL.
DT 21-MAR-2012, sequence version 1.
DT 27-MAR-2024, entry version 68.
DE RecName: Full=Flap endonuclease Xni {ECO:0000256|HAMAP-Rule:MF_01192};
DE Short=FEN {ECO:0000256|HAMAP-Rule:MF_01192};
DE EC=3.1.-.- {ECO:0000256|HAMAP-Rule:MF_01192};
GN Name=xni {ECO:0000256|HAMAP-Rule:MF_01192};
GN Synonyms=ygdG {ECO:0000256|HAMAP-Rule:MF_01192};
GN OrderedLocusNames=Rahaq2_0913 {ECO:0000313|EMBL:AEX50814.1};
OS Rahnella aquatilis (strain ATCC 33071 / DSM 4594 / JCM 1683 / NBRC 105701 /
OS NCIMB 13365 / CIP 78.65).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Yersiniaceae; Rahnella.
OX NCBI_TaxID=745277 {ECO:0000313|EMBL:AEX50814.1, ECO:0000313|Proteomes:UP000009010};
RN [1] {ECO:0000313|EMBL:AEX50814.1, ECO:0000313|Proteomes:UP000009010}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33071 / DSM 4594 / JCM 1683 / NBRC 105701 / NCIMB 13365 /
RC CIP 78.65 {ECO:0000313|Proteomes:UP000009010};
RX PubMed=22582378; DOI=10.1128/JB.00380-12;
RA Martinez R.J., Bruce D., Detter C., Goodwin L.A., Han J., Han C.S.,
RA Held B., Land M.L., Mikhailova N., Nolan M., Pennacchio L., Pitluck S.,
RA Tapia R., Woyke T., Sobecky P.A.;
RT "Complete Genome Sequence of Rahnella aquatilis CIP 78.65.";
RL J. Bacteriol. 194:3020-3021(2012).
RN [2] {ECO:0000313|Proteomes:UP000009010}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33071 / DSM 4594 / JCM 1683 / NBRC 105701 / NCIMB 13365 /
RC CIP 78.65 {ECO:0000313|Proteomes:UP000009010};
RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Peters L., Ovchinnikova G., Held B., Detter J.C., Han C., Tapia R.,
RA Land M., Hauser L., Kyrpides N., Ivanova N., Pagani I., Sobecky P.,
RA Martinez R., Woyke T.;
RT "Complete sequence of chromosome of Rahnella aquatilis CIP 78.65.";
RL Submitted (JAN-2012) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Has flap endonuclease activity. During DNA replication, flap
CC endonucleases cleave the 5'-overhanging flap structure that is
CC generated by displacement synthesis when DNA polymerase encounters the
CC 5'-end of a downstream Okazaki fragment. {ECO:0000256|HAMAP-
CC Rule:MF_01192}.
CC -!- COFACTOR:
CC Name=K(+); Xref=ChEBI:CHEBI:29103;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01192};
CC Note=Binds 1 K(+) per subunit. The potassium ion strongly increases the
CC affinity for DNA. {ECO:0000256|HAMAP-Rule:MF_01192};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01192};
CC Note=Binds 2 Mg(2+) per subunit. Only one magnesium ion has a direct
CC interaction with the protein, the other interactions are indirect.
CC {ECO:0000256|HAMAP-Rule:MF_01192};
CC -!- SIMILARITY: Belongs to the Xni family. {ECO:0000256|HAMAP-
CC Rule:MF_01192}.
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DR EMBL; CP003244; AEX50814.1; -; Genomic_DNA.
DR RefSeq; WP_015696081.1; NZ_JMPO01000130.1.
DR AlphaFoldDB; H2IXL1; -.
DR STRING; 745277.Rahaq2_0913; -.
DR GeneID; 61511026; -.
DR KEGG; raq:Rahaq2_0913; -.
DR PATRIC; fig|745277.3.peg.859; -.
DR eggNOG; COG0258; Bacteria.
DR HOGENOM; CLU_004675_1_2_6; -.
DR OrthoDB; 8070997at2; -.
DR Proteomes; UP000009010; Chromosome.
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:0004527; F:exonuclease activity; IEA:UniProtKB-KW.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0030955; F:potassium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0033567; P:DNA replication, Okazaki fragment processing; IEA:UniProtKB-UniRule.
DR CDD; cd09898; H3TH_53EXO; 1.
DR CDD; cd09859; PIN_53EXO; 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_01192; Xni; 1.
DR InterPro; IPR020046; 5-3_exonucl_a-hlix_arch_N.
DR InterPro; IPR002421; 5-3_exonuclease.
DR InterPro; IPR036279; 5-3_exonuclease_C_sf.
DR InterPro; IPR020045; DNA_polI_H3TH.
DR InterPro; IPR038969; FEN.
DR InterPro; IPR008918; HhH2.
DR InterPro; IPR029060; PIN-like_dom_sf.
DR InterPro; IPR022895; Xni.
DR PANTHER; PTHR42646:SF2; DNA-DIRECTED DNA POLYMERASE; 1.
DR PANTHER; PTHR42646; FLAP ENDONUCLEASE XNI; 1.
DR Pfam; PF01367; 5_3_exonuc; 1.
DR Pfam; PF02739; 5_3_exonuc_N; 1.
DR SMART; SM00475; 53EXOc; 1.
DR SMART; SM00279; HhH2; 1.
DR SUPFAM; SSF47807; 5' to 3' exonuclease, C-terminal subdomain; 1.
DR SUPFAM; SSF88723; PIN domain-like; 1.
PE 3: Inferred from homology;
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|HAMAP-
KW Rule:MF_01192};
KW Endonuclease {ECO:0000256|ARBA:ARBA00022759, ECO:0000256|HAMAP-
KW Rule:MF_01192}; Exonuclease {ECO:0000313|EMBL:AEX50814.1};
KW Hydrolase {ECO:0000256|HAMAP-Rule:MF_01192};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_01192};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01192};
KW Nuclease {ECO:0000256|HAMAP-Rule:MF_01192};
KW Potassium {ECO:0000256|ARBA:ARBA00022958, ECO:0000256|HAMAP-Rule:MF_01192};
KW Reference proteome {ECO:0000313|Proteomes:UP000009010}.
FT DOMAIN 3..250
FT /note="5'-3' exonuclease"
FT /evidence="ECO:0000259|SMART:SM00475"
FT REGION 184..189
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01192"
FT BINDING 104
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01192"
FT BINDING 171
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01192"
FT BINDING 172
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01192"
FT BINDING 180
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01192"
FT BINDING 182
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01192"
FT BINDING 185
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01192"
SQ SEQUENCE 250 AA; 27490 MW; 4F8DC3452EE81B24 CRC64;
MAIHLLIIDA LNLIRRIHAV QGSPCLVTCQ NAIGQLIQHT QPTHAVAVFD EDDRADSWRH
QCLPDYKAGR SPMPDNLFAE MPSLKAGFEA QGIACWHSAG NEADDLAATL AAKVSAGGHQ
VTIVSTDKGY CQLLAPNIQI RDYFQKRWLD MPFVQETFGV LPQQLTDYWG LAGISSSKIP
GVPGIGPKTA VTLLTQTGSL DALYDNLEGV PEKWRHKLEE HRELAYACKR VSTLQTDVAL
DGNLQQLRLP
//
