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Protein

Ribonuclease 3

Gene

rnc

Organism
Streptococcus mutans serotype c (strain ATCC 700610 / UA159)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Protein inferred from homologyi

Functioni

Digests double-stranded RNA. Involved in the processing of primary rRNA transcript to yield the immediate precursors to the large and small rRNAs (23S and 16S). Also processes some mRNAs, and tRNAs when they are encoded in the rRNA operon (By similarity).By similarity
CRISPR (clustered regularly interspaced short palindromic repeat) is an adaptive immune system that provides protection against mobile genetic elements (viruses, transposable elements and conjugative plasmids). CRISPR clusters contain spacers, sequences complementary to antecedent mobile elements, and target invading nucleic acids. CRISPR clusters are transcribed and processed into CRISPR RNA (crRNA). In this organism endogenous ribonuclease 3 and Cas9 are required for correct coprocessing of pre-crRNA and the trans-encoded small RNA (tracrRNA). Cas9, crRNA and tracrRNA are required for cleavage of invading DNA (Probable). Complements pre-crRNA and tracrRNA coprocessing defects in an rnc deletion in S.pyogenes strain 370 (PubMed:24270795).Curated1 Publication

Catalytic activityi

Endonucleolytic cleavage to 5'-phosphomonoester.UniRule annotation

Cofactori

Mg2+UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi47MagnesiumUniRule annotation1
Active sitei51UniRule annotation1
Metal bindingi120MagnesiumUniRule annotation1
Active sitei123UniRule annotation1
Metal bindingi123MagnesiumUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Endonuclease, Hydrolase, Nuclease

Keywords - Biological processi

mRNA processing, rRNA processing, tRNA processing

Keywords - Ligandi

Magnesium, Metal-binding, RNA-binding, rRNA-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Ribonuclease 3UniRule annotation (EC:3.1.26.3UniRule annotation)
Alternative name(s):
Ribonuclease IIIUniRule annotation
Short name:
RNase IIIUniRule annotation
Gene namesi
Name:rncUniRule annotation
Ordered Locus Names:SMU_1514
OrganismiStreptococcus mutans serotype c (strain ATCC 700610 / UA159)
Taxonomic identifieri210007 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus
Proteomesi
  • UP000002512 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002285901 – 231Ribonuclease 3Add BLAST231

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi210007.SMU_1514.

Structurei

3D structure databases

ProteinModelPortaliQ8DT66.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini1 – 134RNase IIIUniRule annotationAdd BLAST134
Domaini160 – 229DRBMUniRule annotationAdd BLAST70

Sequence similaritiesi

Contains 1 DRBM (double-stranded RNA-binding) domain.UniRule annotation
Contains 1 RNase III domain.UniRule annotation

Phylogenomic databases

eggNOGiENOG4108ZBM. Bacteria.
COG0571. LUCA.
KOiK03685.
OMAiLTHKSCK.
PhylomeDBiQ8DT66.

Family and domain databases

CDDicd00593. RIBOc. 1 hit.
Gene3Di1.10.1520.10. 1 hit.
3.30.160.20. 1 hit.
HAMAPiMF_00104. RNase_III. 1 hit.
InterProiIPR014720. dsRBD_dom.
IPR011907. RNase_III.
IPR000999. RNase_III_dom.
[Graphical view]
PfamiPF00035. dsrm. 1 hit.
PF14622. Ribonucleas_3_3. 1 hit.
[Graphical view]
SMARTiSM00358. DSRM. 1 hit.
SM00535. RIBOc. 1 hit.
[Graphical view]
SUPFAMiSSF69065. SSF69065. 1 hit.
TIGRFAMsiTIGR02191. RNaseIII. 1 hit.
PROSITEiPS50137. DS_RBD. 1 hit.
PS00517. RNASE_3_1. 1 hit.
PS50142. RNASE_3_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q8DT66-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKTLEKKLAE DFKIVFSDKE LLETAFTHTS YANEHRLLNI SHNERLEFLG
60 70 80 90 100
DAVLQLTISH YLFDKYPQKA EGDLSKMRSM IVREESLAGF SRNCHFDRYI
110 120 130 140 150
KLGKGEEKSG GRQRDTILGD LFEAFLGALL LDAGLKAVEA FLNQVVIPKV
160 170 180 190 200
ENNNYERVTD YKTALQELLQ VDGDVLIDYE VLKESGPAHA KCFEVAVSMN
210 220 230
HEKLSSGTGK SKKLAEQEAA KNALEKLQRG S
Length:231
Mass (Da):26,029
Last modified:March 1, 2003 - v1
Checksum:i2D8D6A8257791C0E
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE014133 Genomic DNA. Translation: AAN59165.1.
RefSeqiNP_721859.1. NC_004350.2.
WP_002262927.1. NC_004350.2.

Genome annotation databases

EnsemblBacteriaiAAN59165; AAN59165; SMU_1514.
GeneIDi1028756.
KEGGismu:SMU_1514.
PATRICi19665037. VBIStrMut61772_1347.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE014133 Genomic DNA. Translation: AAN59165.1.
RefSeqiNP_721859.1. NC_004350.2.
WP_002262927.1. NC_004350.2.

3D structure databases

ProteinModelPortaliQ8DT66.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi210007.SMU_1514.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAN59165; AAN59165; SMU_1514.
GeneIDi1028756.
KEGGismu:SMU_1514.
PATRICi19665037. VBIStrMut61772_1347.

Phylogenomic databases

eggNOGiENOG4108ZBM. Bacteria.
COG0571. LUCA.
KOiK03685.
OMAiLTHKSCK.
PhylomeDBiQ8DT66.

Family and domain databases

CDDicd00593. RIBOc. 1 hit.
Gene3Di1.10.1520.10. 1 hit.
3.30.160.20. 1 hit.
HAMAPiMF_00104. RNase_III. 1 hit.
InterProiIPR014720. dsRBD_dom.
IPR011907. RNase_III.
IPR000999. RNase_III_dom.
[Graphical view]
PfamiPF00035. dsrm. 1 hit.
PF14622. Ribonucleas_3_3. 1 hit.
[Graphical view]
SMARTiSM00358. DSRM. 1 hit.
SM00535. RIBOc. 1 hit.
[Graphical view]
SUPFAMiSSF69065. SSF69065. 1 hit.
TIGRFAMsiTIGR02191. RNaseIII. 1 hit.
PROSITEiPS50137. DS_RBD. 1 hit.
PS00517. RNASE_3_1. 1 hit.
PS50142. RNASE_3_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiRNC_STRMU
AccessioniPrimary (citable) accession number: Q8DT66
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 21, 2006
Last sequence update: March 1, 2003
Last modified: November 2, 2016
This is version 88 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.