RNH2_BACC7
ID RNH2_BACC7 Reviewed; 257 AA.
AC B7HLH0;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-FEB-2009, sequence version 1.
DT 03-AUG-2022, entry version 62.
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};
GN OrderedLocusNames=BCAH187_A3884;
OS Bacillus cereus (strain AH187).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC Bacillus cereus group.
OX NCBI_TaxID=405534;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AH187;
RA Dodson R.J., Durkin A.S., Rosovitz M.J., Rasko D.A., Kolsto A.B.,
RA Okstad O.A., Ravel J., Sutton G.;
RT "Genome sequence of Bacillus cereus AH187.";
RL Submitted (OCT-2008) 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; CP001177; ACJ77220.1; -; Genomic_DNA.
DR RefSeq; WP_001174725.1; NC_011658.1.
DR AlphaFoldDB; B7HLH0; -.
DR SMR; B7HLH0; -.
DR EnsemblBacteria; ACJ77220; ACJ77220; BCAH187_A3884.
DR GeneID; 64199176; -.
DR KEGG; bcr:BCAH187_A3884; -.
DR HOGENOM; CLU_036532_2_1_9; -.
DR OMA; YPTKLHL; -.
DR OrthoDB; 1685277at2; -.
DR Proteomes; UP000002214; 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..257
FT /note="Ribonuclease HII"
FT /id="PRO_1000116841"
FT DOMAIN 72..257
FT /note="RNase H type-2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT BINDING 78
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT BINDING 79
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT BINDING 170
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
SQ SEQUENCE 257 AA; 28983 MW; FA25B569B0DA6ED8 CRC64;
MQKVTIQEAE HLLQEIMSEE DDRFQILMKD ERKGVQKLIS KWYKQKELAQ KEKEKFLEMS
KYENALREKG LTYIAGIDEV GRGPLAGPVV TAAVVLPKDF YIPGLNDSKK LSEAKRERFY
DEIKAQAIAI GVGIVSPQVI DEINIYQATK QAMLDAVANL SCTPQYLLID AMKLPTPIPQ
TSIIKGDAKS ISISAASIIA KVTRDRMMKE LGEKYPAYGF EQHMGYGTKQ HLEAIEAHGI
LEEHRKSFAP IKDMIQK
