ID C4KZR6_EXISA Unreviewed; 134 AA.
AC C4KZR6;
DT 07-JUL-2009, integrated into UniProtKB/TrEMBL.
DT 07-JUL-2009, sequence version 1.
DT 27-MAR-2024, entry version 73.
DE RecName: Full=Mini-ribonuclease 3 {ECO:0000256|HAMAP-Rule:MF_01468};
DE Short=Mini-3 {ECO:0000256|HAMAP-Rule:MF_01468};
DE Short=Mini-RNase 3 {ECO:0000256|HAMAP-Rule:MF_01468};
DE EC=3.1.26.- {ECO:0000256|HAMAP-Rule:MF_01468};
DE AltName: Full=Mini-RNase III {ECO:0000256|HAMAP-Rule:MF_01468};
DE Short=Mini-III {ECO:0000256|HAMAP-Rule:MF_01468};
GN Name=mrnC {ECO:0000256|HAMAP-Rule:MF_01468};
GN OrderedLocusNames=EAT1b_1653 {ECO:0000313|EMBL:ACQ70579.1};
OS Exiguobacterium sp. (strain ATCC BAA-1283 / AT1b).
OC Bacteria; Bacillota; Bacilli; Bacillales;
OC Bacillales Family XII. Incertae Sedis; Exiguobacterium.
OX NCBI_TaxID=360911 {ECO:0000313|EMBL:ACQ70579.1, ECO:0000313|Proteomes:UP000000716};
RN [1] {ECO:0000313|EMBL:ACQ70579.1, ECO:0000313|Proteomes:UP000000716}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1283 / AT1b {ECO:0000313|Proteomes:UP000000716};
RX PubMed=21460088; DOI=10.1128/JB.00303-11;
RA Vishnivetskaya T.A., Lucas S., Copeland A., Lapidus A., Glavina Del Rio T.,
RA Dalin E., Tice H., Bruce D.C., Goodwin L.A., Pitluck S., Saunders E.,
RA Brettin T., Detter C., Han C., Larimer F., Land M.L., Hauser L.J.,
RA Kyrpides N.C., Ovchinnikova G., Kathariou S., Ramaley R.F., Rodrigues D.F.,
RA Hendrix C., Richardson P., Tiedje J.M.;
RT "Complete genome sequence of the Thermophilic Bacterium Exiguobacterium sp.
RT AT1b.";
RL J. Bacteriol. 193:2880-2881(2011).
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:0000256|HAMAP-Rule:MF_01468}.
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01468};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01468}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01468}.
CC -!- SIMILARITY: Belongs to the MrnC RNase family. {ECO:0000256|HAMAP-
CC Rule:MF_01468}.
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DR EMBL; CP001615; ACQ70579.1; -; Genomic_DNA.
DR RefSeq; WP_012727697.1; NC_012673.1.
DR AlphaFoldDB; C4KZR6; -.
DR STRING; 360911.EAT1b_1653; -.
DR KEGG; eat:EAT1b_1653; -.
DR eggNOG; COG1939; Bacteria.
DR HOGENOM; CLU_091169_2_0_9; -.
DR OrthoDB; 46571at2; -.
DR Proteomes; UP000000716; 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; Ribonuclease III domain; 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 PANTHER; PTHR34276; MINI-RIBONUCLEASE 3; 1.
DR PANTHER; PTHR34276:SF1; MINI-RIBONUCLEASE 3; 1.
DR Pfam; PF00636; Ribonuclease_3; 1.
DR PIRSF; PIRSF005520; UCP005520; 1.
DR SMART; SM00535; RIBOc; 1.
DR SUPFAM; SSF69065; RNase III domain-like; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01468};
KW Endonuclease {ECO:0000256|HAMAP-Rule:MF_01468};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_01468};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_01468};
KW Nuclease {ECO:0000256|HAMAP-Rule:MF_01468};
KW Ribosome biogenesis {ECO:0000256|HAMAP-Rule:MF_01468};
KW RNA-binding {ECO:0000256|HAMAP-Rule:MF_01468};
KW rRNA processing {ECO:0000256|ARBA:ARBA00022552, ECO:0000256|HAMAP-
KW Rule:MF_01468}; rRNA-binding {ECO:0000256|HAMAP-Rule:MF_01468}.
FT DOMAIN 1..131
FT /note="RNase III"
FT /evidence="ECO:0000259|SMART:SM00535"
FT ACT_SITE 17
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01468"
SQ SEQUENCE 134 AA; 15485 MW; 761E058B0C893C3A CRC64;
MMQPKQMNAL ALAYMGDVVY EMAVRRRLLE KGLTRPNDLH RGAVRYVNAR AQASVVTFWL
ETDVLTEEEQ AVVRRGKNAK SGSVPKRVDV HTYRYSTAFE ALIGYIYLTE RRDRLEELIK
QAFERLEAES TETT
//
