Escherichia coli K-12 substr. MG1655 Polypeptide: ribosomal silencing factor

Gene: rsfS Accession Numbers: EG11255 (EcoCyc), b0637, ECK0630

Synonyms: ybeB, rsfA

Regulation Summary Diagram: ?

Regulation summary diagram for rsfS

RsfS is a ribosomal silencing factor that inhibits assembly of the functional 70S ribosome. It interacts directly with the 50S ribosomal subunit protein L14 [Hauser12].

RsfS was found to associate with the 50S subunit of the ribosome [Jiang06a]. RsfS is similar to the Lojap protein of Zea mays, which is involved in the stability of chloroplast ribosomes [Walbot79].

A transposon insertion in rsfS has a synthetic lethal phenotype with minCDE; this is likely due to its effect on the expression of one of the downstream genes, mrdA or mrdB [Bernhardt04].

In a competitive growth experiment, an rsfS mutant has only a modest growth disadvantage under exponential growth conditions in rich medium. However, rsfS mutants adapt slowly to poor growth conditions, and viability in stationary phase is decreased [Hauser12]. An rsfS deletion mutant is more sensitive to ampicillin and kasugamycin than wild type [Skunca13].

RsfS (RsfA): "ribosomal silencing factor, Stationary phase" [Hauser12]

Locations: cytosol

Map Position: [667,942 <- 668,259] (14.4 centisomes, 52°)
Length: 318 bp / 105 aa

Molecular Weight of Polypeptide: 11.582 kD (from nucleotide sequence)

Unification Links: ASAP:ABE-0002183 , DIP:DIP-48141N , EchoBASE:EB1235 , EcoGene:EG11255 , EcoliWiki:b0637 , Mint:MINT-1226369 , OU-Microarray:b0637 , PortEco:ybeB , Pride:P0AAT6 , Protein Model Portal:P0AAT6 , RefSeq:NP_415170 , RegulonDB:EG11255 , SMR:P0AAT6 , String:511145.b0637 , UniProt:P0AAT6

Relationship Links: InterPro:IN-FAMILY:IPR004394 , InterPro:IN-FAMILY:IPR025656 , Panther:IN-FAMILY:PTHR21043 , Pfam:IN-FAMILY:PF02410

GO Terms:

Biological Process: GO:0017148 - negative regulation of translation Inferred from experiment Inferred by computational analysis [GOA06, Hauser12]
GO:0090071 - negative regulation of ribosome biogenesis Inferred from experiment Inferred by computational analysis [GOA06, Hauser12]
GO:0006417 - regulation of translation Inferred by computational analysis [UniProtGOA11a]
GO:0042256 - mature ribosome assembly Inferred by computational analysis [GOA06]
Molecular Function: GO:0005515 - protein binding Inferred from experiment [Hauser12]
GO:0043023 - ribosomal large subunit binding Inferred from experiment [Jiang06a]
Cellular Component: GO:0005829 - cytosol Inferred from experiment Inferred by computational analysis [DiazMejia09, Ishihama08]
GO:0005737 - cytoplasm Inferred by computational analysis [UniProtGOA11, UniProtGOA11a, GOA06]

MultiFun Terms: information transfer protein related translation
regulation type of regulation posttranscriptional translation attenuation and efficiency

Essentiality data for rsfS knockouts: ?

Growth Medium Growth? T (°C) O2 pH Osm/L Growth Observations
LB enriched Yes 37 Aerobic 6.95   Yes [Gerdes03, Comment 1]
LB Lennox Yes 37 Aerobic 7   Yes [Baba06, Comment 2]
M9 medium with 1% glycerol Yes 37 Aerobic 7.2 0.35 Yes [Joyce06, Comment 3]
MOPS medium with 0.4% glucose Yes 37 Aerobic 7.2 0.22 Yes [Baba06, Comment 2]

Last-Curated ? 15-Jan-2013 by Keseler I , SRI International

Gene Local Context (not to scale): ?

Gene local context diagram

Transcription Unit:

Transcription-unit diagram


Peter D. Karp on Wed Jan 18, 2006:
Gene right-end position adjusted based on analysis performed in the 2005 E. coli annotation update [Riley06 ].
Peter D. Karp on Thu Jan 16, 2003:
Predicted gene function revised as a result of E. coli genome reannotation by Serres et al. [Serres01 ].
10/20/97 Gene b0637 from Blattner lab Genbank (v. M52) entry merged into EcoCyc gene EG11255; confirmed by SwissProt match.


Baba06: Baba T, Ara T, Hasegawa M, Takai Y, Okumura Y, Baba M, Datsenko KA, Tomita M, Wanner BL, Mori H (2006). "Construction of Escherichia coli K-12 in-frame, single-gene knockout mutants: the Keio collection." Mol Syst Biol 2;2006.0008. PMID: 16738554

Bernhardt04: Bernhardt TG, de Boer PA (2004). "Screening for synthetic lethal mutants in Escherichia coli and identification of EnvC (YibP) as a periplasmic septal ring factor with murein hydrolase activity." Mol Microbiol 52(5);1255-69. PMID: 15165230

DiazMejia09: Diaz-Mejia JJ, Babu M, Emili A (2009). "Computational and experimental approaches to chart the Escherichia coli cell-envelope-associated proteome and interactome." FEMS Microbiol Rev 33(1);66-97. PMID: 19054114

Gerdes03: Gerdes SY, Scholle MD, Campbell JW, Balazsi G, Ravasz E, Daugherty MD, Somera AL, Kyrpides NC, Anderson I, Gelfand MS, Bhattacharya A, Kapatral V, D'Souza M, Baev MV, Grechkin Y, Mseeh F, Fonstein MY, Overbeek R, Barabasi AL, Oltvai ZN, Osterman AL (2003). "Experimental determination and system level analysis of essential genes in Escherichia coli MG1655." J Bacteriol 185(19);5673-84. PMID: 13129938

GOA06: GOA, SIB (2006). "Electronic Gene Ontology annotations created by transferring manual GO annotations between orthologous microbial proteins."

Hauser12: Hauser R, Pech M, Kijek J, Yamamoto H, Titz B, Naeve F, Tovchigrechko A, Yamamoto K, Szaflarski W, Takeuchi N, Stellberger T, Diefenbacher ME, Nierhaus KH, Uetz P (2012). "RsfA (YbeB) Proteins Are Conserved Ribosomal Silencing Factors." PLoS Genet 8(7);e1002815. PMID: 22829778

Ishihama08: Ishihama Y, Schmidt T, Rappsilber J, Mann M, Hartl FU, Kerner MJ, Frishman D (2008). "Protein abundance profiling of the Escherichia coli cytosol." BMC Genomics 9;102. PMID: 18304323

Jiang06a: Jiang M, Datta K, Walker A, Strahler J, Bagamasbad P, Andrews PC, Maddock JR (2006). "The Escherichia coli GTPase CgtAE Is Involved in Late Steps of Large Ribosome Assembly." J Bacteriol 188(19);6757-70. PMID: 16980477

Joyce06: Joyce AR, Reed JL, White A, Edwards R, Osterman A, Baba T, Mori H, Lesely SA, Palsson BO, Agarwalla S (2006). "Experimental and computational assessment of conditionally essential genes in Escherichia coli." J Bacteriol 188(23);8259-71. PMID: 17012394

Riley06: Riley M, Abe T, Arnaud MB, Berlyn MK, Blattner FR, Chaudhuri RR, Glasner JD, Horiuchi T, Keseler IM, Kosuge T, Mori H, Perna NT, Plunkett G, Rudd KE, Serres MH, Thomas GH, Thomson NR, Wishart D, Wanner BL (2006). "Escherichia coli K-12: a cooperatively developed annotation snapshot--2005." Nucleic Acids Res 34(1);1-9. PMID: 16397293

Serres01: Serres MH, Gopal S, Nahum LA, Liang P, Gaasterland T, Riley M (2001). "A functional update of the Escherichia coli K-12 genome." Genome Biol 2(9);RESEARCH0035. PMID: 11574054

Skunca13: Skunca N, Bošnjak M, Kriško A, Panov P, Džeroski S, Smuc T, Supek F (2013). "Phyletic profiling with cliques of orthologs is enhanced by signatures of paralogy relationships." PLoS Comput Biol 9(1);e1002852. PMID: 23308060

UniProtGOA11: UniProt-GOA (2011). "Gene Ontology annotation based on the manual assignment of UniProtKB Subcellular Location terms in UniProtKB/Swiss-Prot entries."

UniProtGOA11a: UniProt-GOA (2011). "Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries."

Walbot79: Walbot V, Coe EH (1979). "Nuclear gene iojap conditions a programmed change to ribosome-less plastids in Zea mays." Proc Natl Acad Sci U S A 76(6);2760-2764. PMID: 16592664

Other References Related to Gene Regulation

MendozaVargas09: Mendoza-Vargas A, Olvera L, Olvera M, Grande R, Vega-Alvarado L, Taboada B, Jimenez-Jacinto V, Salgado H, Juarez K, Contreras-Moreira B, Huerta AM, Collado-Vides J, Morett E (2009). "Genome-wide identification of transcription start sites, promoters and transcription factor binding sites in E. coli." PLoS One 4(10);e7526. PMID: 19838305

Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of EcoCyc: Nucleic Acids Research 41:D605-12 2013
Page generated by SRI International Pathway Tools version 19.0 on Fri Oct 9, 2015, BIOCYC14B.