ID   MRNC_STAA8              Reviewed;         134 AA.
AC   Q2G2M4;
DT   21-MAR-2012, integrated into UniProtKB/Swiss-Prot.
DT   21-MAR-2006, sequence version 1.
DT   25-MAY-2022, entry version 81.
DE   RecName: Full=Mini-ribonuclease 3 {ECO:0000255|HAMAP-Rule:MF_01468};
DE            Short=Mini-3 {ECO:0000255|HAMAP-Rule:MF_01468};
DE            Short=Mini-RNase 3 {ECO:0000255|HAMAP-Rule:MF_01468};
DE            EC=3.1.26.- {ECO:0000255|HAMAP-Rule:MF_01468};
DE   AltName: Full=Mini-RNase III {ECO:0000255|HAMAP-Rule:MF_01468};
DE            Short=Mini-III {ECO:0000255|HAMAP-Rule:MF_01468};
GN   Name=mrnC {ECO:0000255|HAMAP-Rule:MF_01468};
GN   OrderedLocusNames=SAOUHSC_00512;
OS   Staphylococcus aureus (strain NCTC 8325 / PS 47).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=93061;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NCTC 8325 / PS 47;
RA   Gillaspy A.F., Worrell V., Orvis J., Roe B.A., Dyer D.W., Iandolo J.J.;
RT   "The Staphylococcus aureus NCTC 8325 genome.";
RL   (In) Fischetti V., Novick R., Ferretti J., Portnoy D., Rood J. (eds.);
RL   Gram positive pathogens, 2nd edition, pp.381-412, ASM Press, Washington
RL   D.C. (2006).
CC   -!- FUNCTION: Involved in correct processing of both the 5' and 3' ends of
CC       23S rRNA precursor. Processes 30S rRNA precursor transcript even in
CC       absence of ribonuclease 3 (Rnc); Rnc processes 30S rRNA into smaller
CC       rRNA precursors. {ECO:0000255|HAMAP-Rule:MF_01468}.
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01468};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01468}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01468}.
CC   -!- SIMILARITY: Belongs to the MrnC RNase family. {ECO:0000255|HAMAP-
CC       Rule:MF_01468}.
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; CP000253; ABD29661.1; -; Genomic_DNA.
DR   RefSeq; WP_000370182.1; NZ_LS483365.1.
DR   RefSeq; YP_499085.1; NC_007795.1.
DR   AlphaFoldDB; Q2G2M4; -.
DR   SMR; Q2G2M4; -.
DR   STRING; 1280.SAXN108_0584; -.
DR   PRIDE; Q2G2M4; -.
DR   EnsemblBacteria; ABD29661; ABD29661; SAOUHSC_00512.
DR   GeneID; 3920424; -.
DR   KEGG; sao:SAOUHSC_00512; -.
DR   PATRIC; fig|93061.5.peg.458; -.
DR   eggNOG; COG1939; Bacteria.
DR   HOGENOM; CLU_091169_2_0_9; -.
DR   OMA; AYMGDAI; -.
DR   Proteomes; UP000008816; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004525; F:ribonuclease III activity; IEA:InterPro.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006364; P:rRNA processing; IEA:UniProtKB-UniRule.
DR   CDD; cd00593; RIBOc; 1.
DR   Gene3D; 1.10.1520.10; -; 1.
DR   HAMAP; MF_01468; RNase_Mini_III; 1.
DR   InterPro; IPR008226; Mini3_fam.
DR   InterPro; IPR000999; RNase_III_dom.
DR   InterPro; IPR036389; RNase_III_sf.
DR   Pfam; PF00636; Ribonuclease_3; 1.
DR   PIRSF; PIRSF005520; UCP005520; 1.
DR   SMART; SM00535; RIBOc; 1.
DR   SUPFAM; SSF69065; SSF69065; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Endonuclease; Hydrolase; Magnesium; Nuclease;
KW   Reference proteome; Ribosome biogenesis; RNA-binding; rRNA processing;
KW   rRNA-binding.
FT   CHAIN           1..134
FT                   /note="Mini-ribonuclease 3"
FT                   /id="PRO_0000415991"
FT   ACT_SITE        22
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01468"
SQ   SEQUENCE   134 AA;  15721 MW;  4F271AF30E5BD6C2 CRC64;
     MDNQQDNHIK LLNPLTLAYM GDAVLDQYVR TYIVLKLKSK PNKLHQMSKK YVSAKSQAQT
     LEYLMEQEWF TDEEMDILKR GRNAKSHTKA KNTDVQTYRK SSAIEAVIGF LYLEKREERL
     EALLNKIITI VNER