ID A0A0K0F8Q9_STRVS Unreviewed; 291 AA.
AC A0A0K0F8Q9;
DT 14-OCT-2015, integrated into UniProtKB/TrEMBL.
DT 14-OCT-2015, sequence version 1.
DT 13-SEP-2023, entry version 23.
DE RecName: Full=Ribonuclease {ECO:0000256|RuleBase:RU003515};
DE EC=3.1.26.4 {ECO:0000256|RuleBase:RU003515};
OS Strongyloides venezuelensis (Threadworm).
OC Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC Tylenchina; Panagrolaimomorpha; Strongyloidoidea; Strongyloididae;
OC Strongyloides.
OX NCBI_TaxID=75913 {ECO:0000313|Proteomes:UP000035680, ECO:0000313|WBParaSite:SVE_0520900.1};
RN [1] {ECO:0000313|Proteomes:UP000035680}
RP NUCLEOTIDE SEQUENCE.
RA Martin A.A, De Silva N.;
RL Submitted (JUL-2014) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|WBParaSite:SVE_0520900.1}
RP IDENTIFICATION.
RG WormBaseParasite;
RL Submitted (AUG-2015) to UniProtKB.
CC -!- FUNCTION: Catalytic subunit of RNase HII, an endonuclease that
CC specifically degrades the RNA of RNA:DNA hybrids. Participates in DNA
CC replication, possibly by mediating the removal of lagging-strand
CC Okazaki fragment RNA primers during DNA replication. Mediates the
CC excision of single ribonucleotides from DNA:RNA duplexes.
CC {ECO:0000256|ARBA:ARBA00024981}.
CC -!- FUNCTION: Endonuclease that specifically degrades the RNA of RNA-DNA
CC hybrids. {ECO:0000256|RuleBase:RU003515}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.4;
CC Evidence={ECO:0000256|ARBA:ARBA00000077, ECO:0000256|PROSITE-
CC ProRule:PRU01319, ECO:0000256|RuleBase:RU003515};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|PROSITE-ProRule:PRU01319};
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|PROSITE-ProRule:PRU01319};
CC Note=Manganese or magnesium. Binds 1 divalent metal ion per monomer in
CC the absence of substrate. May bind a second metal ion after substrate
CC binding. {ECO:0000256|PROSITE-ProRule:PRU01319};
CC -!- SIMILARITY: Belongs to the RNase HII family. Eukaryotic subfamily.
CC {ECO:0000256|ARBA:ARBA00007058}.
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DR AlphaFoldDB; A0A0K0F8Q9; -.
DR STRING; 75913.A0A0K0F8Q9; -.
DR WBParaSite; SVE_0520900.1; SVE_0520900.1; SVE_0520900.
DR Proteomes; UP000035680; Unassembled WGS sequence.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004523; F:RNA-DNA hybrid ribonuclease activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006401; P:RNA catabolic process; IEA:UniProtKB-UniRule.
DR CDD; cd07181; RNase_HII_eukaryota_like; 1.
DR Gene3D; 3.30.420.10; Ribonuclease H-like superfamily/Ribonuclease H; 1.
DR Gene3D; 1.10.10.460; Ribonuclease hii. Domain 2; 1.
DR InterPro; IPR004649; RNase_H2_suA.
DR InterPro; IPR001352; RNase_HII/HIII.
DR InterPro; IPR024567; RNase_HII/HIII_dom.
DR InterPro; IPR023160; RNase_HII_hlx-loop-hlx_cap_dom.
DR InterPro; IPR012337; RNaseH-like_sf.
DR InterPro; IPR036397; RNaseH_sf.
DR NCBIfam; TIGR00729; ribonuclease HII; 1.
DR PANTHER; PTHR10954; RIBONUCLEASE H2 SUBUNIT A; 1.
DR PANTHER; PTHR10954:SF7; RIBONUCLEASE H2 SUBUNIT A; 1.
DR Pfam; PF01351; RNase_HII; 1.
DR SUPFAM; SSF53098; Ribonuclease H-like; 1.
DR PROSITE; PS51975; RNASE_H_2; 1.
PE 3: Inferred from homology;
KW Endonuclease {ECO:0000256|ARBA:ARBA00022759, ECO:0000256|PROSITE-
KW ProRule:PRU01319};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|PROSITE-
KW ProRule:PRU01319};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|PROSITE-
KW ProRule:PRU01319};
KW Nuclease {ECO:0000256|ARBA:ARBA00022722, ECO:0000256|PROSITE-
KW ProRule:PRU01319}; Reference proteome {ECO:0000313|Proteomes:UP000035680}.
FT DOMAIN 28..254
FT /note="RNase H type-2"
FT /evidence="ECO:0000259|PROSITE:PS51975"
FT BINDING 34
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01319"
FT BINDING 35
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01319"
FT BINDING 145
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01319"
SQ SEQUENCE 291 AA; 32870 MW; 7806245522813C60 CRC64;
MENFDFPDFA KYEVILGEEF NKFASCGPCI LGVDEAGRGP VLGPMVYGLA VIKENKQKLL
KKLEVDDSKA LTEKKREKIF CEMNNDGEIK KNLTYRLHVI SPRMISCRML MDKKGVLNDI
SHTSCIDLIQ AALDVGINVK AVYVDTVGPK DKYQKKLQDI FKDISIVVSE KADSKYPIVS
AASIAAKVTR DNLISNWNYI EGDEYSTKII GSGYPGDMKT RQYLDDSCDK VFGFTSLVRF
SWDTAVTILQ KKCCKVNWDP YNVNRAKEKP GSKKRPAVTI LNYFNKVPKM E
//