ID   RNH2_CLOBL              Reviewed;         269 AA.
AC   A7GG29;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   11-SEP-2007, sequence version 1.
DT   03-AUG-2022, entry version 72.
DE   RecName: Full=Ribonuclease HII {ECO:0000255|HAMAP-Rule:MF_00052};
DE            Short=RNase HII {ECO:0000255|HAMAP-Rule:MF_00052};
DE            EC=3.1.26.4 {ECO:0000255|HAMAP-Rule:MF_00052};
GN   Name=rnhB {ECO:0000255|HAMAP-Rule:MF_00052}; OrderedLocusNames=CLI_2497;
OS   Clostridium botulinum (strain Langeland / NCTC 10281 / Type F).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Clostridiaceae;
OC   Clostridium.
OX   NCBI_TaxID=441772;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Langeland / NCTC 10281 / Type F;
RA   Brinkac L.M., Daugherty S., Dodson R.J., Madupu R., Brown J.L., Bruce D.,
RA   Detter C., Munk C., Smith L.A., Smith T.J., White O., Brettin T.S.;
RL   Submitted (JUN-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Endonuclease that specifically degrades the RNA of RNA-DNA
CC       hybrids. {ECO:0000255|HAMAP-Rule:MF_00052}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00052};
CC   -!- COFACTOR:
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00052};
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00052};
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_00052};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00052}.
CC   -!- SIMILARITY: Belongs to the RNase HII family. {ECO:0000255|HAMAP-
CC       Rule:MF_00052}.
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DR   EMBL; CP000728; ABS41974.1; -; Genomic_DNA.
DR   RefSeq; WP_004451019.1; NC_009699.1.
DR   AlphaFoldDB; A7GG29; -.
DR   SMR; A7GG29; -.
DR   EnsemblBacteria; ABS41974; ABS41974; CLI_2497.
DR   KEGG; cbf:CLI_2497; -.
DR   HOGENOM; CLU_036532_2_1_9; -.
DR   OMA; YPTKLHL; -.
DR   Proteomes; UP000002410; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0030145; F:manganese 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; cd07182; RNase_HII_bacteria_HII_like; 1.
DR   Gene3D; 3.30.420.10; -; 1.
DR   HAMAP; MF_00052_B; RNase_HII_B; 1.
DR   InterPro; IPR022898; RNase_HII.
DR   InterPro; IPR001352; RNase_HII/HIII.
DR   InterPro; IPR024567; RNase_HII/HIII_dom.
DR   InterPro; IPR012337; RNaseH-like_sf.
DR   InterPro; IPR036397; RNaseH_sf.
DR   PANTHER; PTHR10954; PTHR10954; 1.
DR   PANTHER; PTHR10954:SF18; PTHR10954:SF18; 1.
DR   Pfam; PF01351; RNase_HII; 1.
DR   SUPFAM; SSF53098; SSF53098; 1.
DR   PROSITE; PS51975; RNASE_H_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Endonuclease; Hydrolase; Manganese; Metal-binding; Nuclease.
FT   CHAIN           1..269
FT                   /note="Ribonuclease HII"
FT                   /id="PRO_0000334879"
FT   DOMAIN          83..269
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_00052"
FT   BINDING         90
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         185
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
SQ   SEQUENCE   269 AA;  31052 MW;  BC5431B03BBF70FB CRC64;
     MNLNNLENIR YNEIKEFSDK IKKEFTFFQK KQVMDIIEKL NKDPRKNVIK LGQALEKFLN
     KYEEELKRTN NMYNFDRRYG NNYLIAGVDE VGRGPLAGPI VAAAVVLDLN VEEMQRIFNI
     KDSKKLSEKK REELDIIIRE KAISYNIALV DNKTIDERGI SWSNNEVLKR AVEGLKVKPD
     LVLSDGYAVK NLNIRNEFII KGDSKSISIA SSSIIAKVYR DNMMKEYSKG LNMYGFNHNA
     GYGTEEHVQA IKKYGPSKIH RMSFLTNIL