ID   RNC_BORPD               Reviewed;         252 AA.
AC   A9IIJ2;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 1.
DT   04-NOV-2026, entry version 93.
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};
GN   OrderedLocusNames=Bpet1764;
OS   Bordetella petrii (strain ATCC BAA-461 / DSM 12804 / CCUG 43448 / CIP
OS   107267 / Se-1111R).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Betaproteobacteria;
OC   Burkholderiales; Alcaligenaceae; Bordetella.
OX   NCBI_TaxID=340100;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-461 / DSM 12804 / CCUG 43448 / CIP 107267 / Se-1111R;
RX   PubMed=18826580; DOI=10.1186/1471-2164-9-449;
RA   Gross R., Guzman C.A., Sebaihia M., Martin dos Santos V.A.P., Pieper D.H.,
RA   Koebnik R., Lechner M., Bartels D., Buhrmester J., Choudhuri J.V.,
RA   Ebensen T., Gaigalat L., Herrmann S., Khachane A.N., Larisch C., Link S.,
RA   Linke B., Meyer F., Mormann S., Nakunst D., Rueckert C.,
RA   Schneiker-Bekel S., Schulze K., Voerholter F.-J., Yevsa T., Engle J.T.,
RA   Goldman W.E., Puehler A., Goebel U.B., Goesmann A., Bloecker H., Kaiser O.,
RA   Martinez-Arias R.;
RT   "The missing link: Bordetella petrii is endowed with both the metabolic
RT   versatility of environmental bacteria and virulence traits of pathogenic
RT   Bordetellae.";
RL   BMC Genomics 9:449-449(2008).
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; Evidence={ECO:0000255|HAMAP-
CC         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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AM902716; CAP42103.1; -; Genomic_DNA.
DR   AlphaFoldDB; A9IIJ2; -.
DR   SMR; A9IIJ2; -.
DR   STRING; 94624.Bpet1764; -.
DR   KEGG; bpt:Bpet1764; -.
DR   eggNOG; COG0571; Bacteria.
DR   OMA; AAEVWFR; -.
DR   Proteomes; UP000001225; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003725; F:double-stranded RNA binding; IEA:TreeGrafter.
DR   GO; GO:0004525; F:ribonuclease III activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006397; P:mRNA processing; IEA:UniProtKB-UniRule.
DR   GO; GO:0010468; P:regulation of gene expression; IEA:TreeGrafter.
DR   GO; GO:0006364; P:rRNA processing; IEA:UniProtKB-UniRule.
DR   CDD; cd10845; DSRM_RNAse_III_family; 1.
DR   CDD; cd00593; RIBOc; 1.
DR   FunFam; 1.10.1520.10:FF:000001; Ribonuclease 3; 1.
DR   Gene3D; 3.30.160.20; -; 1.
DR   Gene3D; 1.10.1520.10; Ribonuclease III domain; 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   NCBIfam; TIGR02191; RNaseIII; 1.
DR   PANTHER; PTHR11207:SF0; RIBONUCLEASE 3; 1.
DR   PANTHER; PTHR11207; RIBONUCLEASE III; 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; SSF54768; dsRNA-binding domain-like; 1.
DR   SUPFAM; SSF69065; RNase III domain-like; 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..252
FT                   /note="Ribonuclease 3"
FT                   /id="PRO_1000094097"
FT   DOMAIN          3..125
FT                   /note="RNase III"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   DOMAIN          152..222
FT                   /note="DRBM"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   ACT_SITE        42
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   ACT_SITE        114
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   BINDING         38
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   BINDING         111
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   BINDING         114
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
SQ   SEQUENCE   252 AA;  27268 MW;  9B530AB6211CEE95 CRC64;
     MSLATLETRL DHRFGNAALL EQALTHRSHS ARHNERLEFL GDSVLNFVVA AMLFERFPKL
     DEGDLSRLRA NLVKQASLAD IGQRLELSQY LRLGEGELKS GGFRRPSILA DAVEAIFGAA
     FLDGGFDTAR KVIVRQYQPV LASVDPKTLG KDAKTLLQEF LQGRKLALPL YTVVATHGAA
     HSQQFEVECA IPALEIKVVA PGASRRAAEQ SAAKLALEAA QAASPARAVR KQGKARKAAQ
     LSLPVAVAQE VK
//