RNC_RICPR
ID RNC_RICPR Reviewed; 225 AA.
AC Q9ZE31;
DT 30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT 01-MAY-1999, sequence version 1.
DT 03-AUG-2022, entry version 115.
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=RP117;
OS Rickettsia prowazekii (strain Madrid E).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC Rickettsiaceae; Rickettsieae; Rickettsia; typhus group.
OX NCBI_TaxID=272947;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Madrid E;
RX PubMed=9823893; DOI=10.1038/24094;
RA Andersson S.G.E., Zomorodipour A., Andersson J.O., Sicheritz-Ponten T.,
RA Alsmark U.C.M., Podowski R.M., Naeslund A.K., Eriksson A.-S., Winkler H.H.,
RA Kurland C.G.;
RT "The genome sequence of Rickettsia prowazekii and the origin of
RT mitochondria.";
RL Nature 396:133-140(1998).
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; AJ235270; CAA14586.1; -; Genomic_DNA.
DR PIR; C71721; C71721.
DR RefSeq; NP_220509.1; NC_000963.1.
DR RefSeq; WP_004597150.1; NC_000963.1.
DR AlphaFoldDB; Q9ZE31; -.
DR SMR; Q9ZE31; -.
DR STRING; 272947.RP117; -.
DR EnsemblBacteria; CAA14586; CAA14586; CAA14586.
DR GeneID; 57569245; -.
DR KEGG; rpr:RP117; -.
DR PATRIC; fig|272947.5.peg.119; -.
DR eggNOG; COG0571; Bacteria.
DR HOGENOM; CLU_000907_1_3_5; -.
DR OMA; LTHKSCK; -.
DR Proteomes; UP000002480; 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 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; Reference proteome; RNA-binding;
KW rRNA processing; rRNA-binding; tRNA processing.
FT CHAIN 1..225
FT /note="Ribonuclease 3"
FT /id="PRO_0000180426"
FT DOMAIN 4..133
FT /note="RNase III"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT DOMAIN 158..225
FT /note="DRBM"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT ACT_SITE 50
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT ACT_SITE 122
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 46
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 119
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 122
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
SQ SEQUENCE 225 AA; 26006 MW; E8BE2BB2AF5646FB CRC64;
MESFEKLETL LGYSFKNKEL LIEALSHPSL RQYHEYKYDK DYERLEFLGD AVLNLLITEI
LFKNFENYKE GNLAKIRSYL VCKETICIVG TKLALKDYII MTHGEEVAGG RDNPNNIENA
TEALIAAIYL DSNIEITHNI IEKLWAEFMK VQNLTDYDPK TALQEWAQAN SHHLPIYRLI
KREGAAHSSI FTVLVKVKDY EQTCTGYSIK EAEKKAARSL LHRLK
