B7MIQ2 (RNC_ECO45) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Ribonuclease 3
EC=3.1.26.3

Alternative name(s):
Ribonuclease III
Short name=RNase III

Gene names

Name:	rnc
Ordered Locus Names:	ECS88_2740

Organism

Escherichia coli O45:K1 (strain S88 / ExPEC) [Complete proteome] [HAMAP]

Taxonomic identifier

585035 [NCBI]

Taxonomic lineage

cellular organisms › Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Escherichia › Escherichia coli

Protein attributes

Sequence length	226 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	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. HAMAP-Rule MF_00104
Catalytic activity	Endonucleolytic cleavage to 5'-phosphomonoester. HAMAP-Rule MF_00104
Cofactor	Mg2+ By similarity.
Subunit structure	Homodimer By similarity.
Subcellular location	Cytoplasm By similarity.
Sequence similarities	Contains 1 DRBM (double-stranded RNA-binding) domain. Contains 1 RNase III domain.

Ontologies

Keywords
Biological process	mRNA processing rRNA processing tRNA processing
Cellular component	Cytoplasm
Ligand	Magnesium Metal-binding RNA-binding rRNA-binding
Molecular function	Endonuclease Hydrolase Nuclease
Technical term	Complete proteome
Gene Ontology (GO)
Biological_process	mRNA processing Inferred from electronic annotation. Source: HAMAP nucleic acid phosphodiester bond hydrolysis Inferred from electronic annotation. Source: GOC rRNA catabolic process Inferred from electronic annotation. Source: InterPro rRNA processing Inferred from electronic annotation. Source: HAMAP tRNA processing Inferred from electronic annotation. Source: UniProtKB-KW
Cellular_component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular_function	double-stranded RNA binding Inferred from electronic annotation. Source: InterPro metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW rRNA binding Inferred from electronic annotation. Source: UniProtKB-KW ribonuclease III activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 226	226	Ribonuclease 3 HAMAP-Rule MF_00104		PRO_1000194425
Regions
	Domain	6 – 128	123	RNase III
	Domain	155 – 225	71	DRBM
Sites
	Active site	45	1	Potential
	Active site	117	1	By similarity
	Metal binding	41	1	Magnesium By similarity
	Metal binding	114	1	Magnesium By similarity
	Metal binding	117	1	Magnesium By similarity

Sequences

	Sequence		Length	Mass (Da)
	B7MIQ2 [UniParc]. Last modified March 24, 2009. Version 1. Checksum: D9E2858F2E0AA3A5	FASTA	226	25,550
	10 20 30 40 50 60 MNPIVINRLQ RKLGYTFNHQ ELLQQALTHR SASSKHNERL EFLGDSILSY VIANALYHRF 70 80 90 100 110 120 PRVDEGDMSR MRATLVRGNT LAELAREFEL GECLRLGPGE LKSGGFRRES ILADTVEALI 130 140 150 160 170 180 GGVFLDSDIQ TVEKLILNWY QTRLDEISPG DKQKDPKTRL QEYLQGRHLP LPTYLVVQVR 190 200 210 220 GEAHDQEFTI HCQVSGLSEP VVGTGSSRRK AEQAAAEQAL KKLELE

References

[1]

"Organised genome dynamics in the Escherichia coli species results in highly diverse adaptive paths." Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P., Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H., Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E. , Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C., Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S., Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J., Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E. PLoS Genet. 5:E1000344-E1000344(2009) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: S88 / ExPEC.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CU928161 Genomic DNA. Translation: CAR04004.1.
RefSeq	YP_002392401.1. NC_011742.1.
3D structure databases
ProteinModelPortal	B7MIQ2.
SMR	B7MIQ2. Positions 5-224.
ModBase	Search...
Protein-protein interaction databases
STRING	585035.ECS88_2740.
Proteomic databases
PRIDE	B7MIQ2.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	CAR04004; CAR04004; ECS88_2740.
GeneID	7132415.
KEGG	ecz:ECS88_2740.
PATRIC	18413182. VBIEscCol91599_2707.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG0571.
HOGENOM	HOG000246809.
KO	K03685.
OMA	LTHKSCK.
ProtClustDB	PRK00102.
Enzyme and pathway databases
BioCyc	ECOL585035:GJWP-2733-MONOMER.
Family and domain databases
Gene3D	1.10.1520.10. 1 hit. 3.30.160.20. 1 hit.
HAMAP	MF_00104. RNase_III.
InterPro	IPR001159. Ds-RNA-bd. IPR014720. dsRNA-bd-like_dom. IPR011907. RNase_III. IPR000999. RNase_III_dom. [Graphical view]
PANTHER	PTHR11207. PTHR11207. 1 hit.
Pfam	PF00035. dsrm. 1 hit. PF00636. Ribonuclease_3. 1 hit. [Graphical view]
SMART	SM00358. DSRM. 1 hit. SM00535. RIBOc. 1 hit. [Graphical view]
SUPFAM	SSF69065. RNase_III. 1 hit.
TIGRFAMs	TIGR02191. RNaseIII. 1 hit.
PROSITE	PS50137. DS_RBD. 1 hit. PS00517. RNASE_3_1. 1 hit. PS50142. RNASE_3_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

RNC_ECO45

Accession

Primary (citable) accession number: B7MIQ2

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 14, 2009
Last sequence update:	March 24, 2009
Last modified:	May 1, 2013
This is version 32 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program