ID   RNC_PANAM               Reviewed;         226 AA.
AC   D4GKM1;
DT   18-APR-2012, integrated into UniProtKB/Swiss-Prot.
DT   18-APR-2012, sequence version 2.
DT   03-AUG-2022, entry version 58.
DE   RecName: Full=Ribonuclease 3;
DE            EC=3.1.26.3;
DE   AltName: Full=Ribonuclease III;
DE            Short=RNase III;
GN   Name=rnc; OrderedLocusNames=PANA_2893;
OS   Pantoea ananatis (strain LMG 20103).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Pantoea.
OX   NCBI_TaxID=706191;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LMG 20103;
RX   PubMed=20348253; DOI=10.1128/jb.00060-10;
RA   De Maayer P., Chan W.Y., Venter S.N., Toth I.K., Birch P.R., Joubert F.,
RA   Coutinho T.A.;
RT   "Genome sequence of Pantoea ananatis LMG20103, the causative agent of
RT   Eucalyptus blight and dieback.";
RL   J. Bacteriol. 192:2936-2937(2010).
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 (By similarity).
CC       {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.3;
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the ribonuclease III family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ADD78060.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; CP001875; ADD78060.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_014594336.1; NC_013956.2.
DR   AlphaFoldDB; D4GKM1; -.
DR   SMR; D4GKM1; -.
DR   STRING; 706191.PANA_2893; -.
DR   EnsemblBacteria; ADD78060; ADD78060; PANA_2893.
DR   GeneID; 57267207; -.
DR   GeneID; 65791797; -.
DR   KEGG; pam:PANA_2893; -.
DR   eggNOG; COG0571; Bacteria.
DR   HOGENOM; CLU_000907_1_1_6; -.
DR   OrthoDB; 1890943at2; -.
DR   Proteomes; UP000001702; 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..226
FT                   /note="Ribonuclease 3"
FT                   /id="PRO_0000416611"
FT   DOMAIN          6..128
FT                   /note="RNase III"
FT   DOMAIN          155..225
FT                   /note="DRBM"
FT   ACT_SITE        45
FT                   /evidence="ECO:0000255"
FT   ACT_SITE        117
FT                   /evidence="ECO:0000250"
FT   BINDING         41
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250"
FT   BINDING         114
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250"
FT   BINDING         117
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   226 AA;  25386 MW;  9283A0F3F8E33013 CRC64;
     MNPILINKLQ RKLGYTFTHS ELLQQALTHR SASSKHNERL EFLGDSILSY VIANALYHRF
     PRVDEGDMSR MRATLVRGNT LAEMAREFDL GECLRLGPGE LKSGGFRRES ILADTVEALI
     GGVFLDSDIQ TVEKLILDWY QTRLDEISPG DKQKDPKTRL QEYLQGRHLP LPSYLVVQVR
     GEAHDQEFTI HCQVSGMAEP VVGVGSSRRK AEQAAAEQAL IKLGLE