RNC1_NOSS1
ID RNC1_NOSS1 Reviewed; 228 AA.
AC Q8Z023;
DT 30-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2002, sequence version 1.
DT 03-AUG-2022, entry version 105.
DE RecName: Full=Ribonuclease 3 1 {ECO:0000255|HAMAP-Rule:MF_00104};
DE EC=3.1.26.3 {ECO:0000255|HAMAP-Rule:MF_00104};
DE AltName: Full=Ribonuclease III 1 {ECO:0000255|HAMAP-Rule:MF_00104};
DE Short=RNase III 1 {ECO:0000255|HAMAP-Rule:MF_00104};
GN Name=rnc1 {ECO:0000255|HAMAP-Rule:MF_00104}; OrderedLocusNames=alr0280;
OS Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX NCBI_TaxID=103690;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT "Complete genomic sequence of the filamentous nitrogen-fixing
RT cyanobacterium Anabaena sp. strain PCC 7120.";
RL DNA Res. 8:205-213(2001).
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; BA000019; BAB77804.1; -; Genomic_DNA.
DR PIR; AH1841; AH1841.
DR RefSeq; WP_010994457.1; NZ_RSCN01000032.1.
DR AlphaFoldDB; Q8Z023; -.
DR SMR; Q8Z023; -.
DR STRING; 103690.17135258; -.
DR EnsemblBacteria; BAB77804; BAB77804; BAB77804.
DR KEGG; ana:alr0280; -.
DR eggNOG; COG0571; Bacteria.
DR OMA; THRSYVN; -.
DR OrthoDB; 1890943at2; -.
DR Proteomes; UP000002483; 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; Reference proteome; RNA-binding;
KW rRNA processing; rRNA-binding; tRNA processing.
FT CHAIN 1..228
FT /note="Ribonuclease 3 1"
FT /id="PRO_0000180370"
FT DOMAIN 1..124
FT /note="RNase III"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT DOMAIN 153..223
FT /note="DRBM"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT ACT_SITE 41
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT ACT_SITE 113
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 37
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 110
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT BINDING 113
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
SQ SEQUENCE 228 AA; 25872 MW; 692D8E6D79A4283F CRC64;
MYKLLMFRDD KLLRRALTHR SYVNENPEEG EHNERLEFLG DAILNFLSGE YLYRSHPDRG
EDELTRRRSA LVDEKQLAKF AIEVGLDFKM RLGKGAIRDG GYQNPNLLSS TFEAVIGAYY
LDNNSNIEAV RAIIEPLFES VPEQIVVVRS NVDSKNRFQE WVQRNIGPTP PKYLTEQIGG
FSHAPEFKAT VLVGEKEYGE GIGKNKKDAE KAAAENALAN LNKQELLP
