ID K9S4Y3_9CYAN Unreviewed; 246 AA.
AC K9S4Y3;
DT 06-MAR-2013, integrated into UniProtKB/TrEMBL.
DT 06-MAR-2013, sequence version 1.
DT 24-JAN-2024, entry version 58.
DE RecName: Full=Ribonuclease 3 {ECO:0000256|HAMAP-Rule:MF_00104};
DE EC=3.1.26.3 {ECO:0000256|HAMAP-Rule:MF_00104};
DE AltName: Full=Ribonuclease III {ECO:0000256|HAMAP-Rule:MF_00104};
DE Short=RNase III {ECO:0000256|HAMAP-Rule:MF_00104};
GN Name=rnc {ECO:0000256|HAMAP-Rule:MF_00104};
GN ORFNames=GEI7407_0526 {ECO:0000313|EMBL:AFY65026.1};
OS Geitlerinema sp. PCC 7407.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Geitlerinematales;
OC Geitlerinemataceae; Geitlerinema.
OX NCBI_TaxID=1173025 {ECO:0000313|EMBL:AFY65026.1, ECO:0000313|Proteomes:UP000010383};
RN [1] {ECO:0000313|EMBL:AFY65026.1, ECO:0000313|Proteomes:UP000010383}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 7407 {ECO:0000313|EMBL:AFY65026.1,
RC ECO:0000313|Proteomes:UP000010383};
RG US DOE Joint Genome Institute;
RA Gugger M., Coursin T., Rippka R., Tandeau De Marsac N., Huntemann M.,
RA Wei C.-L., Han J., Detter J.C., Han C., Tapia R., Davenport K.,
RA Daligault H., Erkkila T., Gu W., Munk A.C.C., Teshima H., Xu Y., Chain P.,
RA Chen A., Krypides N., Mavromatis K., Markowitz V., Szeto E., Ivanova N.,
RA Mikhailova N., Ovchinnikova G., Pagani I., Pati A., Goodwin L., Peters L.,
RA Pitluck S., Woyke T., Kerfeld C.;
RT "Finished genome of Geitlerinema sp. PCC 7407.";
RL Submitted (MAY-2012) to the EMBL/GenBank/DDBJ databases.
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:0000256|HAMAP-
CC Rule:MF_00104}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.3;
CC Evidence={ECO:0000256|ARBA:ARBA00000109, ECO:0000256|HAMAP-
CC Rule:MF_00104};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00104};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00104}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00104}.
CC -!- SIMILARITY: Belongs to the ribonuclease III family.
CC {ECO:0000256|ARBA:ARBA00010183}.
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DR EMBL; CP003591; AFY65026.1; -; Genomic_DNA.
DR RefSeq; WP_015170594.1; NC_019703.1.
DR AlphaFoldDB; K9S4Y3; -.
DR STRING; 1173025.GEI7407_0526; -.
DR KEGG; gei:GEI7407_0526; -.
DR PATRIC; fig|1173025.3.peg.589; -.
DR eggNOG; COG0571; Bacteria.
DR HOGENOM; CLU_000907_1_3_3; -.
DR OrthoDB; 9805026at2; -.
DR Proteomes; UP000010383; 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; PTHR11207:SF0; RIBONUCLEASE 3; 1.
DR PANTHER; PTHR11207; RIBONUCLEASE III; 1.
DR Pfam; PF00035; dsrm; 1.
DR Pfam; PF00636; Ribonuclease_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 {ECO:0000256|HAMAP-Rule:MF_00104};
KW Endonuclease {ECO:0000256|ARBA:ARBA00022759, ECO:0000256|HAMAP-
KW Rule:MF_00104};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_00104};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_00104};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00104};
KW mRNA processing {ECO:0000256|ARBA:ARBA00022664, ECO:0000256|HAMAP-
KW Rule:MF_00104};
KW Nuclease {ECO:0000256|ARBA:ARBA00022722, ECO:0000256|HAMAP-Rule:MF_00104};
KW Reference proteome {ECO:0000313|Proteomes:UP000010383};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884, ECO:0000256|HAMAP-
KW Rule:MF_00104}; rRNA processing {ECO:0000256|HAMAP-Rule:MF_00104};
KW rRNA-binding {ECO:0000256|HAMAP-Rule:MF_00104};
KW tRNA processing {ECO:0000256|HAMAP-Rule:MF_00104}.
FT DOMAIN 12..137
FT /note="RNase III"
FT /evidence="ECO:0000259|PROSITE:PS50142"
FT DOMAIN 165..235
FT /note="DRBM"
FT /evidence="ECO:0000259|PROSITE:PS50137"
FT ACT_SITE 55
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00104"
FT ACT_SITE 126
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00104"
FT BINDING 51
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00104"
FT BINDING 123
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00104"
FT BINDING 126
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00104"
SQ SEQUENCE 246 AA; 28027 MW; AD8DCCFC25C6C4F3 CRC64;
MSLPDPRRQK QLMKLLERLE LPPDVSVRWD LLDLALTHST VSPTENYEQL EFMGDAVVRL
ATAEFLMETY PDWPVGEFAA LRSILVSDRR LAQIADRYGF DRFLLVGSSV AGNRAGQETR
LAESFEAVLG ALYLSTHDLS LVRPWLDTHL QEFAEEIRSD PARQNYKAAL QEWTQARYQC
RPEYQVQEVS QIYNDTKRFR AEVWVRDRHV GSGSGRSIKA AEQAAAQEAF LLLSQSSNPD
LDSHLA
//