RNC_CERS5
ID RNC_CERS5 Reviewed; 229 AA.
AC A4WVP5;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 29-MAY-2007, sequence version 1.
DT 03-AUG-2022, entry version 85.
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=Rsph17025_2571;
OS Cereibacter sphaeroides (strain ATCC 17025 / ATH 2.4.3) (Rhodobacter
OS sphaeroides).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC Rhodobacteraceae; Cereibacter.
OX NCBI_TaxID=349102;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 17025 / ATH 2.4.3;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Chertkov O., Brettin T., Bruce D., Han C., Schmutz J., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Kim E., Richardson P., Mackenzie C., Choudhary M.,
RA Donohue T.J., Kaplan S.;
RT "Complete sequence of chromosome of Rhodobacter sphaeroides ATCC 17025.";
RL Submitted (APR-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000661; ABP71459.1; -; Genomic_DNA.
DR AlphaFoldDB; A4WVP5; -.
DR SMR; A4WVP5; -.
DR STRING; 349102.Rsph17025_2571; -.
DR EnsemblBacteria; ABP71459; ABP71459; Rsph17025_2571.
DR KEGG; rsq:Rsph17025_2571; -.
DR eggNOG; COG0571; Bacteria.
DR HOGENOM; CLU_000907_1_1_5; -.
DR OMA; LTHKSCK; -.
DR OrthoDB; 1890943at2; -.
DR BioCyc; RSPH349102:G1G8M-2650-MON; -.
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..229
FT /note="Ribonuclease 3"
FT /id="PRO_1000075799"
FT DOMAIN 7..132
FT /note="RNase III"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT DOMAIN 157..226
FT /note="DRBM"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT ACT_SITE 49
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT ACT_SITE 121
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 45
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 118
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 121
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
SQ SEQUENCE 229 AA; 24826 MW; 21975C4741EFEC43 CRC64;
MKLSTDLRAF ESRIGHAFRE PDRLLRAVTH ASLSSATRPD NQRLEFLGDR VLGLVMAEAL
LAADKAATEG QLAPRFNALV RKETCAAVAR EVGLGDVLKL GRSEMMSGGR RKEALLGDAL
EAVIAAVYLD AGFEAARRLV LRLWGERIAQ VEADARDAKT ALQEWAQARG LPPPCYEAVD
RSGPDHAPIF TVEVRLGNGE TERSAAGTKR VAEQAAARAL LARMEARDD
