RNC_BACCQ
ID RNC_BACCQ Reviewed; 245 AA.
AC B9IVD8;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 24-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 72.
DE RecName: Full=Ribonuclease 3 {ECO:0000255|HAMAP-Rule:MF_00104};
DE EC=3.1.26.3 {ECO:0000255|HAMAP-Rule:MF_00104};
DE AltName: Full=Ribonuclease III {ECO:0000255|HAMAP-Rule:MF_00104};
DE Short=RNase III {ECO:0000255|HAMAP-Rule:MF_00104};
GN Name=rnc {ECO:0000255|HAMAP-Rule:MF_00104}; OrderedLocusNames=BCQ_3634;
OS Bacillus cereus (strain Q1).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC Bacillus cereus group.
OX NCBI_TaxID=361100;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Q1;
RX PubMed=19060151; DOI=10.1128/jb.01629-08;
RA Xiong Z., Jiang Y., Qi D., Lu H., Yang F., Yang J., Chen L., Sun L., Xu X.,
RA Xue Y., Zhu Y., Jin Q.;
RT "Complete genome sequence of the extremophilic Bacillus cereus strain Q1
RT with industrial applications.";
RL J. Bacteriol. 191:1120-1121(2009).
CC -!- FUNCTION: Digests double-stranded RNA. Involved in the processing of
CC primary rRNA transcript to yield the immediate precursors to the large
CC and small rRNAs (23S and 16S). Processes some mRNAs, and tRNAs when
CC they are encoded in the rRNA operon. Processes pre-crRNA and tracrRNA
CC of type II CRISPR loci if present in the organism. {ECO:0000255|HAMAP-
CC Rule:MF_00104}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.3;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00104};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00104};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00104}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00104}.
CC -!- SIMILARITY: Belongs to the ribonuclease III family. {ECO:0000255|HAMAP-
CC Rule:MF_00104}.
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DR EMBL; CP000227; ACM14062.1; -; Genomic_DNA.
DR RefSeq; WP_001146876.1; NC_011969.1.
DR AlphaFoldDB; B9IVD8; -.
DR SMR; B9IVD8; -.
DR EnsemblBacteria; ACM14062; ACM14062; BCQ_3634.
DR GeneID; 59155654; -.
DR GeneID; 64199188; -.
DR KEGG; bcq:BCQ_3634; -.
DR HOGENOM; CLU_000907_1_3_9; -.
DR OMA; LTHKSCK; -.
DR Proteomes; UP000000441; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004525; F:ribonuclease III activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-KW.
DR GO; GO:0006397; P:mRNA processing; IEA:UniProtKB-UniRule.
DR GO; GO:0006364; P:rRNA processing; IEA:UniProtKB-UniRule.
DR GO; GO:0008033; P:tRNA processing; IEA:UniProtKB-KW.
DR CDD; cd00593; RIBOc; 1.
DR Gene3D; 1.10.1520.10; -; 1.
DR HAMAP; MF_00104; RNase_III; 1.
DR InterPro; IPR014720; dsRBD_dom.
DR InterPro; IPR011907; RNase_III.
DR InterPro; IPR000999; RNase_III_dom.
DR InterPro; IPR036389; RNase_III_sf.
DR PANTHER; PTHR11207; PTHR11207; 1.
DR Pfam; PF00035; dsrm; 1.
DR Pfam; PF14622; Ribonucleas_3_3; 1.
DR SMART; SM00358; DSRM; 1.
DR SMART; SM00535; RIBOc; 1.
DR SUPFAM; SSF69065; SSF69065; 1.
DR TIGRFAMs; TIGR02191; RNaseIII; 1.
DR PROSITE; PS50137; DS_RBD; 1.
DR PROSITE; PS00517; RNASE_3_1; 1.
DR PROSITE; PS50142; RNASE_3_2; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Endonuclease; Hydrolase; Magnesium; Metal-binding;
KW mRNA processing; Nuclease; RNA-binding; rRNA processing; rRNA-binding;
KW tRNA processing.
FT CHAIN 1..245
FT /note="Ribonuclease 3"
FT /id="PRO_1000194412"
FT DOMAIN 19..148
FT /note="RNase III"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT DOMAIN 174..243
FT /note="DRBM"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT ACT_SITE 65
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT ACT_SITE 137
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 61
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 134
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 137
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
SQ SEQUENCE 245 AA; 27979 MW; 052D89D9506EB8D6 CRC64;
MPYRKYREKK YETKYREAFK VFQEKIGITF TDEKLLIQAF THSSYVNEHR KKPHEDNERL
EFLGDAVLEL TVSQYLFQKY PTMSEGELTK LRAAIVCEPS LVRFANELSF GSLVLLGKGE
EMTGGRERPA LLADVFEAFI GALYLDQGLE TVWGFLKEIV YPKINEGAFS HVMDYKSQLQ
ELIQRDGSGN IEYQILQEKG PAHNREFVSR VTLNNVALGL GSGKSKKEAE QQAAAEALKK
LKEQL
