ID RNC_GEOSL Reviewed; 248 AA. AC Q74AX1; DT 21-MAR-2006, integrated into UniProtKB/Swiss-Prot. DT 05-JUL-2004, sequence version 1. DT 27-MAR-2024, entry version 105. 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=GSU2228; OS Geobacter sulfurreducens (strain ATCC 51573 / DSM 12127 / PCA). OC Bacteria; Thermodesulfobacteriota; Desulfuromonadia; Geobacterales; OC Geobacteraceae; Geobacter. OX NCBI_TaxID=243231; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 51573 / DSM 12127 / PCA; RX PubMed=14671304; DOI=10.1126/science.1088727; RA Methe B.A., Nelson K.E., Eisen J.A., Paulsen I.T., Nelson W.C., RA Heidelberg J.F., Wu D., Wu M., Ward N.L., Beanan M.J., Dodson R.J., RA Madupu R., Brinkac L.M., Daugherty S.C., DeBoy R.T., Durkin A.S., RA Gwinn M.L., Kolonay J.F., Sullivan S.A., Haft D.H., Selengut J., RA Davidsen T.M., Zafar N., White O., Tran B., Romero C., Forberger H.A., RA Weidman J.F., Khouri H.M., Feldblyum T.V., Utterback T.R., Van Aken S.E., RA Lovley D.R., Fraser C.M.; RT "Genome of Geobacter sulfurreducens: metal reduction in subsurface RT environments."; RL Science 302:1967-1969(2003). 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; AE017180; AAR35604.1; -; Genomic_DNA. DR RefSeq; NP_953277.1; NC_002939.5. DR RefSeq; WP_010942868.1; NC_002939.5. DR AlphaFoldDB; Q74AX1; -. DR SMR; Q74AX1; -. DR STRING; 243231.GSU2228; -. DR EnsemblBacteria; AAR35604; AAR35604; GSU2228. DR KEGG; gsu:GSU2228; -. DR PATRIC; fig|243231.5.peg.2259; -. DR eggNOG; COG0571; Bacteria. DR HOGENOM; CLU_000907_1_3_7; -. DR InParanoid; Q74AX1; -. DR OrthoDB; 9805026at2; -. DR Proteomes; UP000000577; Chromosome. DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell. DR GO; GO:0003725; F:double-stranded RNA binding; IBA:GO_Central. DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW. DR GO; GO:0004525; F:ribonuclease III activity; IBA:GO_Central. DR GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-KW. DR GO; GO:0006397; P:mRNA processing; IEA:UniProtKB-UniRule. DR GO; GO:0010468; P:regulation of gene expression; IBA:GO_Central. DR GO; GO:0006396; P:RNA processing; IBA:GO_Central. DR GO; GO:0006364; P:rRNA processing; IEA:UniProtKB-UniRule. DR GO; GO:0008033; P:tRNA processing; IEA:UniProtKB-KW. DR CDD; cd10845; DSRM_RNAse_III_family; 1. DR CDD; cd00593; RIBOc; 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; 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..248 FT /note="Ribonuclease 3" FT /id="PRO_0000228535" FT DOMAIN 16..145 FT /note="RNase III" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104" FT DOMAIN 172..241 FT /note="DRBM" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104" FT ACT_SITE 62 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104" FT ACT_SITE 134 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104" FT BINDING 58 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104" FT BINDING 131 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" SQ SEQUENCE 248 AA; 27017 MW; EC1068B65CD1E9ED CRC64; MRETDEQPVA GGAASTEGLE TSIGYRFTDR RFLDEALTHR SWLNEVRSPT VPDNERLEFF GDAILGFCIG KMLLRHYPES REGALARMKS ALVGEETLAD LAAAVELGSY LRLGRGEERS GGRHRRSLLA NALEALLAAM YLDGGMAPVE RLVDAWFGPR LAGVAAGIKG RDFKTDFQEL AQAQYGGLPR YVLVDTSGPA HDLRFTVAAY VGERLLGQGT GRSKKEAEQA AARQCLERLE TGRCSAAP //