Q9ZEA5 (RS18_RICPR) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
30S ribosomal protein S18

Gene names

Name:	rpsR
Ordered Locus Names:	RP040

Organism

Rickettsia prowazekii (strain Madrid E)

Taxonomic identifier

272947 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Rickettsiales › Rickettsiaceae › Rickettsieae › Rickettsia › typhus group

Protein attributes

Sequence length	95 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Binds as a heterodimer with protein S6 to the central domain of the 16S rRNA, where it helps stabilize the platform of the 30S subunit By similarity. HAMAP MF_00270
Subunit structure	Part of the 30S ribosomal subunit. Forms a tight heterodimer with protein S6 By similarity.
Sequence similarities	Belongs to the ribosomal protein S18P family.

Ontologies

Keywords
Ligand	RNA-binding rRNA-binding
Molecular function	Ribonucleoprotein Ribosomal protein
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological process	translation Inferred from electronic annotation. Source: InterPro
Cellular component	ribosome Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	rRNA binding Inferred from electronic annotation. Source: UniProtKB-KW structural constituent of ribosome Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 95	95	30S ribosomal protein S18 HAMAP MF_00270		PRO_0000111218

Sequences

	Sequence		Length	Mass (Da)
	Q9ZEA5 [UniParc]. Last modified May 1, 1999. Version 1. Checksum: 902C519871F4B45A	FASTA	95	10,557
	10 20 30 40 50 60 MLKSNNASET ATSKGVDKAA KKVFFRRRKG CPLSVPNAPV IDYKNPELLI KFVSEGGRML 70 80 90 PSRITNVCAK KQRKLNNAIK IARILALLPF VFQAK

References

[1]	"The genome sequence of Rickettsia prowazekii and the origin of mitochondria." Andersson S.G.E., Zomorodipour A., Andersson J.O., Sicheritz-Ponten T., Alsmark U.C.M., Podowski R.M., Naeslund A.K., Eriksson A.-S., Winkler H.H., Kurland C.G. Nature 396:133-140(1998) [PubMed: 9823893] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Madrid E.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AJ235270 Genomic DNA. Translation: CAA14511.1.
PIR	H71711.
RefSeq	NP_220434.1. NC_000963.1.
3D structure databases
ProteinModelPortal	Q9ZEA5.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	883576.
GenomeReviews	Gene locus RP040 in contig AJ235269_GR.
KEGG	rpr:RP040.
PATRIC	17900814. VBIRicPro72556_0041.
Phylogenomic databases
HOGENOM	HBG608793.
OMA	YRRRKSC.
ProtClustDB	PRK00391.
Enzyme and pathway databases
BioCyc	RPRO272947:RP040-MONOMER.
Family and domain databases
HAMAP	MF_00270. Ribosomal_S18. [Tree]
InterPro	IPR001648. Ribosomal_S18. IPR018275. Ribosomal_S18_CS. [Graphical view]
Gene3D	G3DSA:4.10.640.10. Ribosomal_S18. 1 hit.
KO	K02963.
Pfam	PF01084. Ribosomal_S18. 1 hit. [Graphical view]
PRINTS	PR00974. RIBOSOMALS18.
ProDom	PD002239. Ribosomal_S18. 1 hit. [Graphical view] [Entries sharing at least one domain]
SUPFAM	SSF46911. Ribosomal_S18. 1 hit.
TIGRFAMs	TIGR00165. S18. 1 hit.
PROSITE	PS00057. RIBOSOMAL_S18. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

RS18_RICPR

Accession

Primary (citable) accession number: Q9ZEA5

Entry history

Integrated into UniProtKB/Swiss-Prot:	May 30, 2000
Last sequence update:	May 1, 1999
Last modified:	January 25, 2012
This is version 58 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program