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Protein

Ribonuclease 3

Gene

rnc

Organism
Spiroplasma citri
Status
Reviewed-Annotation score: Annotation score: 3 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). Processes some mRNAs, and tRNAs when they are encoded in the rRNA operon. Processes pre-crRNA and tracrRNA of type II CRISPR loci if present in the organism.UniRule annotation

Catalytic activityi

Endonucleolytic cleavage to 5'-phosphomonoester.UniRule annotation

Cofactori

Mg2+UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi55 – 551MagnesiumUniRule annotation
Active sitei59 – 591UniRule annotation
Metal bindingi128 – 1281MagnesiumUniRule annotation
Active sitei131 – 1311UniRule annotation
Metal bindingi131 – 1311MagnesiumUniRule annotation

GO - Molecular functioni

  1. metal ion binding Source: UniProtKB-KW
  2. ribonuclease III activity Source: UniProtKB-HAMAP
  3. rRNA binding Source: UniProtKB-KW

GO - Biological processi

  1. mRNA processing Source: UniProtKB-HAMAP
  2. rRNA catabolic process Source: InterPro
  3. rRNA processing Source: UniProtKB-HAMAP
  4. tRNA processing Source: UniProtKB-KW
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
OrganismiSpiroplasma citri
Taxonomic identifieri2133 [NCBI]
Taxonomic lineageiBacteriaTenericutesMollicutesEntomoplasmatalesSpiroplasmataceaeSpiroplasma

Subcellular locationi

Cytoplasm UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 248248Ribonuclease 3PRO_0000180431Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini15 – 142128RNase IIIUniRule annotationAdd
BLAST
Domaini169 – 24072DRBMUniRule annotationAdd
BLAST

Sequence similaritiesi

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

Family and domain databases

Gene3Di1.10.1520.10. 1 hit.
3.30.160.20. 1 hit.
HAMAPiMF_00104. RNase_III.
InterProiIPR014720. dsRNA-bd_dom.
IPR011907. RNase_III.
IPR000999. RNase_III_dom.
[Graphical view]
PANTHERiPTHR11207. PTHR11207. 1 hit.
PfamiPF00035. dsrm. 1 hit.
PF00636. Ribonuclease_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.

Q53844-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MQFINKQSEQ LFIELKAFFK QYHVFIKERQ YYLEALTHNS YANEHNLSYT
60 70 80 90 100
YQRMEFLGDA ILAKEISLYL FLSFPDKNEG EITNLRSKIV REGTLAELVR
110 120 130 140 150
RMNWAPFLLL GKGEIKTKGY EKNRILADIY ESMIAALYLD LGEDVVRTFI
160 170 180 190 200
NNTLIRMVSN PGFFDKIRDY KTELQEFLQA GDARTLEYKL IKESQPLEGN
210 220 230 240
RVLYTVVAEI GGIRYGEGCG YTHKEAEQLA ARDALQKLAT KSKYHFEK
Length:248
Mass (Da):28,931
Last modified:October 31, 1996 - v1
Checksum:i1A5A02EA1AD95D82
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U28972 Genomic DNA. Translation: AAA84999.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U28972 Genomic DNA. Translation: AAA84999.1.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

Gene3Di1.10.1520.10. 1 hit.
3.30.160.20. 1 hit.
HAMAPiMF_00104. RNase_III.
InterProiIPR014720. dsRNA-bd_dom.
IPR011907. RNase_III.
IPR000999. RNase_III_dom.
[Graphical view]
PANTHERiPTHR11207. PTHR11207. 1 hit.
PfamiPF00035. dsrm. 1 hit.
PF00636. Ribonuclease_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...

Publicationsi

  1. "Spiroplasma citri virus SpV1: characterization of viral sequences present in the spiroplasmal host chromosome."
    Bebear C.-M., Aullo P., Bove J.-M., Renaudin J.
    Curr. Microbiol. 32:134-140(1995)
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: ATCC 27556 / NCPPB 2647 / R8A2.

Entry informationi

Entry nameiRNC_SPICI
AccessioniPrimary (citable) accession number: Q53844
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 31, 1997
Last sequence update: October 31, 1996
Last modified: March 31, 2015
This is version 81 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.