ID   RNC_ZYMMO               Reviewed;         246 AA.
AC   Q9Z5U2; Q5NMR1;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   23-MAR-2010, sequence version 3.
DT   27-MAR-2024, entry version 130.
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=ZMO1375;
OS   Zymomonas mobilis subsp. mobilis (strain ATCC 31821 / ZM4 / CP4).
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC   Zymomonadaceae; Zymomonas.
OX   NCBI_TaxID=264203;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC 31821 / ZM4 / CP4;
RA   Um H.W., Kang H.S.;
RL   Submitted (JAN-1999) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 31821 / ZM4 / CP4;
RX   PubMed=15592456; DOI=10.1038/nbt1045;
RA   Seo J.-S., Chong H., Park H.S., Yoon K.-O., Jung C., Kim J.J., Hong J.H.,
RA   Kim H., Kim J.-H., Kil J.-I., Park C.J., Oh H.-M., Lee J.-S., Jin S.-J.,
RA   Um H.-W., Lee H.-J., Oh S.-J., Kim J.Y., Kang H.L., Lee S.Y., Lee K.J.,
RA   Kang H.S.;
RT   "The genome sequence of the ethanologenic bacterium Zymomonas mobilis
RT   ZM4.";
RL   Nat. Biotechnol. 23:63-68(2005).
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   -!- SEQUENCE CAUTION:
CC       Sequence=AAD19719.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; AF124349; AAD19719.1; ALT_INIT; Genomic_DNA.
DR   EMBL; AE008692; AAV89999.2; -; Genomic_DNA.
DR   RefSeq; WP_011241161.1; NZ_CP035711.1.
DR   AlphaFoldDB; Q9Z5U2; -.
DR   SMR; Q9Z5U2; -.
DR   STRING; 264203.ZMO1375; -.
DR   GeneID; 79905258; -.
DR   KEGG; zmo:ZMO1375; -.
DR   eggNOG; COG0571; Bacteria.
DR   HOGENOM; CLU_000907_1_1_5; -.
DR   Proteomes; UP000001173; 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; 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; PTHR14950; DICER-RELATED; 1.
DR   PANTHER; PTHR14950:SF37; ENDORIBONUCLEASE DICER; 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; 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..246
FT                   /note="Ribonuclease 3"
FT                   /id="PRO_0000180463"
FT   DOMAIN          30..152
FT                   /note="RNase III"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   DOMAIN          177..246
FT                   /note="DRBM"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   ACT_SITE        69
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   ACT_SITE        141
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   BINDING         65
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   BINDING         138
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   BINDING         141
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00104"
FT   CONFLICT        36..41
FT                   /note="NLGHRP -> FRPSA (in Ref. 1; AAD19719)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   246 AA;  26850 MW;  BB4F14A6DFD145B0 CRC64;
     MADKRFFGTK TFPNQEKALK AKIMNNDAFI SWIEKNLGHR PKDPALFLRA MTHPSHGNSD
     YQRLEFLGDR VLGLVIANWL YDLFPREPEG KLSRRLNSLV SGASCASIAR IVGLPQWLRL
     GKQARDDGAA ASDNVLGDVM EAMIGAIFLE SGIEAAGKLI HKYWAPLVTG QESAPKHPKS
     ALQEWAAAHN RRPPVYEIVS RTGPQHNPCF TIQVSIAGVG EASAEGSSKQ EAQTAAAQAL
     LDILAQ
//