ID A0A183KKN3_9TREM Unreviewed; 353 AA.
AC A0A183KKN3;
DT 07-SEP-2016, integrated into UniProtKB/TrEMBL.
DT 07-SEP-2016, 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};
GN ORFNames=SCUD_LOCUS15595 {ECO:0000313|EMBL:VDP59637.1};
OS Schistosoma curassoni.
OC Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Platyhelminthes; Trematoda;
OC Digenea; Strigeidida; Schistosomatoidea; Schistosomatidae; Schistosoma.
OX NCBI_TaxID=6186 {ECO:0000313|Proteomes:UP000050789, ECO:0000313|WBParaSite:SCUD_0001559801-mRNA-1};
RN [1] {ECO:0000313|WBParaSite:SCUD_0001559801-mRNA-1}
RP IDENTIFICATION.
RG WormBaseParasite;
RL Submitted (JUN-2016) to UniProtKB.
RN [2] {ECO:0000313|EMBL:VDP59637.1, ECO:0000313|Proteomes:UP000279833}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Dakar {ECO:0000313|EMBL:VDP59637.1}, and Dakar, Senegal
RC {ECO:0000313|Proteomes:UP000279833};
RG Pathogen Informatics;
RL Submitted (NOV-2018) to the EMBL/GenBank/DDBJ databases.
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 EMBL; UZAK01037766; VDP59637.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A183KKN3; -.
DR STRING; 6186.A0A183KKN3; -.
DR WBParaSite; SCUD_0001559801-mRNA-1; SCUD_0001559801-mRNA-1; SCUD_0001559801.
DR Proteomes; UP000050789; Unplaced.
DR Proteomes; UP000279833; 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:UP000279833}.
FT DOMAIN 62..286
FT /note="RNase H type-2"
FT /evidence="ECO:0000259|PROSITE:PS51975"
FT REGION 1..23
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 8..23
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 68
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01319"
FT BINDING 69
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01319"
FT BINDING 176
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01319"
SQ SEQUENCE 353 AA; 39108 MW; 3F80C25E7C9212AA CRC64;
METSDTEFSD EPLLNSNDSA SGSLPKAVAR YETSLSEAAL NCRKNYKFDL LDLLTTSTKS
NQCMLGIDEA GRGPVLGPMV YACALSPISR LNELKTIGLA DSKTLNENQR DKLLKEMLDK
CDWISAVVHV ISPVYITEKM LDKSKTSLNA ISHDSAIQLI QSVLDSGVNL VEVYVDTVGK
AEHYQTKLQN LFPQLKIRVE SKADDIYPIV SAASIFAKVT RDRVLQMWPK EERGSVPEGT
GLGSGYPGDP VTKSYLRACM DPIFGFPSLV RSSWSTASSL LDQHGVSVRW EDDETHEEVI
QAKKLARKRE HSKGTCKLSN YFNNAQSRSS TPDALQRQPF FVRTGLVHVQ TIT
//
