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RNH3_STRPC
ID   RNH3_STRPC              Reviewed;         300 AA.
AC   Q1JK67;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2006, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Ribonuclease HIII {ECO:0000255|HAMAP-Rule:MF_00053};
DE            Short=RNase HIII {ECO:0000255|HAMAP-Rule:MF_00053};
DE            EC=3.1.26.4 {ECO:0000255|HAMAP-Rule:MF_00053};
GN   Name=rnhC {ECO:0000255|HAMAP-Rule:MF_00053};
GN   OrderedLocusNames=MGAS9429_Spy1569;
OS   Streptococcus pyogenes serotype M12 (strain MGAS9429).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=370551;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MGAS9429;
RX   PubMed=16636287; DOI=10.1073/pnas.0510279103;
RA   Beres S.B., Richter E.W., Nagiec M.J., Sumby P., Porcella S.F., DeLeo F.R.,
RA   Musser J.M.;
RT   "Molecular genetic anatomy of inter- and intraserotype variation in the
RT   human bacterial pathogen group A Streptococcus.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:7059-7064(2006).
CC   -!- FUNCTION: Endonuclease that specifically degrades the RNA of RNA-DNA
CC       hybrids. {ECO:0000255|HAMAP-Rule:MF_00053}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00053};
CC   -!- COFACTOR:
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00053};
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00053};
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:0000255|HAMAP-Rule:MF_00053};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00053}.
CC   -!- SIMILARITY: Belongs to the RNase HII family. RnhC subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00053}.
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DR   EMBL; CP000259; ABF32756.1; -; Genomic_DNA.
DR   RefSeq; WP_002988245.1; NC_008021.1.
DR   AlphaFoldDB; Q1JK67; -.
DR   SMR; Q1JK67; -.
DR   EnsemblBacteria; ABF32756; ABF32756; MGAS9429_Spy1569.
DR   KEGG; spk:MGAS9429_Spy1569; -.
DR   HOGENOM; CLU_059546_1_0_9; -.
DR   OMA; TGDYFGP; -.
DR   Proteomes; UP000002433; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003723; F:RNA binding; IEA:InterPro.
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; cd14796; RNAse_HIII_N; 1.
DR   Gene3D; 3.30.310.10; -; 1.
DR   Gene3D; 3.30.420.10; -; 1.
DR   HAMAP; MF_00053; RNase_HIII; 1.
DR   InterPro; IPR001352; RNase_HII/HIII.
DR   InterPro; IPR024567; RNase_HII/HIII_dom.
DR   InterPro; IPR004641; RNase_HIII.
DR   InterPro; IPR024568; RNase_HIII_N.
DR   InterPro; IPR012337; RNaseH-like_sf.
DR   InterPro; IPR036397; RNaseH_sf.
DR   InterPro; IPR012295; TBP_dom_sf.
DR   PANTHER; PTHR10954; PTHR10954; 1.
DR   Pfam; PF11858; DUF3378; 1.
DR   Pfam; PF01351; RNase_HII; 1.
DR   PIRSF; PIRSF037748; RnhC; 1.
DR   SUPFAM; SSF53098; SSF53098; 1.
DR   TIGRFAMs; TIGR00716; rnhC; 1.
DR   PROSITE; PS51975; RNASE_H_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Endonuclease; Hydrolase; Magnesium; Metal-binding; Nuclease.
FT   CHAIN           1..300
FT                   /note="Ribonuclease HIII"
FT                   /id="PRO_1000031244"
FT   DOMAIN          83..300
FT                   /note="RNase H type-2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT   BINDING         89
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00053"
FT   BINDING         90
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00053"
FT   BINDING         194
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00053"
SQ   SEQUENCE   300 AA;  32645 MW;  937565CA54DB5039 CRC64;
     MNTLVLKIDA ILSKHLKKQL ASYTISSQNT YVAFAAKKNG VTVLLYKSGK LVLQGNGANA
     LAQELNLPVA KTVFEASNNS QDIPIIGSDE VGNGSYFGGI AVVASFVDPK DHSFLKKLGV
     DDSKKLSDKT IQQIAPLLEK QIPHQSLLLS PKKYNELVGK SKPYNAISIK VALHNQAIFL
     LLQKGIQPKQ IVIDAFTSQS NYEKHLKKEK NHFPNPLTFQ EKAESHYLAV AVSSIIARNL
     FLDNLDQLGQ DLGYQLPSGA GSASDKVASQ LLAAYGMSSL EYSAKLHFAN THKAQALLTK
 
 
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