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Escherichia coli K-12 substr. MG1655 Polypeptide: 30S ribosomal subunit protein S22



Gene: sra Accession Numbers: EG11508 (EcoCyc), b1480, ECK1474

Synonyms: rpsV, Protein D

Regulation Summary Diagram: ?

Component of:
30S ribosomal subunit (summary available)
ribosome (summary available)

Summary:
Sra is a sub-stoichiometric component of the 30S ribosomal subunit that is more abundant at stationary phase than during log phase growth [Wada86a, Izutsu01]. The amino-terminal methionine residue is not cleaved [Arnold99].

Transcription is induced [Selinger00, Izutsu01] and protein abundance increases [Izutsu01] under stationary phase conditions. σS, cAMP, ppGpp, Fis, and Ihf may be involved in the transcription of sra during stationary phase [Izutsu01]. sra is also cotranscribed with the bdm gene from a promoter upstream of bdm which is activated by osmotic shock and dependent on the RcsCDB phosphorelay system [FrancezCharlot05].

An sra deletion mutant does not have an obvious growth defect [Izutsu01].

Sra: "stationary-phase-induced ribosome-associated" [Izutsu01]

Locations: cytosol, ribosome

Map Position: [1,553,850 <- 1,553,987] (33.49 centisomes)
Length: 138 bp / 45 aa

Molecular Weight of Polypeptide: 5.096 kD (from nucleotide sequence)

Unification Links: ASAP:ABE-0004935 , CGSC:32198 , DIP:DIP-48175N , EchoBASE:EB1471 , EcoGene:EG11508 , EcoliWiki:b1480 , Mint:MINT-1322613 , OU-Microarray:b1480 , PortEco:sra , PR:PRO_000023982 , Pride:P68191 , Protein Model Portal:P68191 , RefSeq:NP_415997 , RegulonDB:EG11508 , String:511145.b1480 , UniProt:P68191

Relationship Links: InterPro:IN-FAMILY:IPR012607 , Pfam:IN-FAMILY:PF08136 , ProDom:IN-FAMILY:PD049510

Gene-Reaction Schematic: ?

Genetic Regulation Schematic: ?

GO Terms:

Biological Process: GO:0006412 - translation Inferred by computational analysis [GOA01]
Molecular Function: GO:0003735 - structural constituent of ribosome Inferred by computational analysis [GOA01]
Cellular Component: GO:0005829 - cytosol Inferred from experiment Inferred by computational analysis [DiazMejia09, Ishihama08]
GO:0005840 - ribosome Inferred by computational analysis [GOA01]

MultiFun Terms: cell structure ribosomes
information transfer protein related ribosomal proteins
information transfer protein related translation

Essentiality data for sra 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]

Credits:
Last-Curated ? 28-Mar-2006 by Keseler I , SRI International


Subunit of: 30S ribosomal subunit

Synonyms: ribosome, small subunit

Subunit composition of 30S ribosomal subunit = [RrsA][RpsA][RpsB][RpsC][RpsD][RpsE][RpsF][RpsG][RpsH][RpsI][RpsJ][RpsK][RpsL][RpsM][RpsN][RpsO][RpsP][RpsQ][RpsR][RpsS][RpsT][RpsU][Sra]
         16S ribosomal RNA (rrsA) = RrsA (extended summary available)
         30S ribosomal subunit protein S1 = RpsA (extended summary available)
         30S ribosomal subunit protein S2 = RpsB (summary available)
         30S ribosomal subunit protein S3 = RpsC (summary available)
         30S ribosomal subunit protein S4 = RpsD (extended summary available)
         30S ribosomal subunit protein S5 = RpsE (extended summary available)
         30S ribosomal subunit protein S6 = RpsF (extended summary available)
         30S ribosomal subunit protein S7 = RpsG (extended summary available)
         30S ribosomal subunit protein S8 = RpsH (extended summary available)
         30S ribosomal subunit protein S9 = RpsI (extended summary available)
         30S ribosomal subunit protein S10 = RpsJ (extended summary available)
         30S ribosomal subunit protein S11 = RpsK (summary available)
         30S ribosomal subunit protein S12 = RpsL (extended summary available)
         30S ribosomal subunit protein S13 = RpsM (extended summary available)
         30S ribosomal subunit protein S14 = RpsN (summary available)
         30S ribosomal subunit protein S15 = RpsO (extended summary available)
         30S ribosomal subunit protein S16 = RpsP (summary available)
         30S ribosomal subunit protein S17 = RpsQ (summary available)
         30S ribosomal subunit protein S18 = RpsR (extended summary available)
         30S ribosomal subunit protein S19 = RpsS (summary available)
         30S ribosomal subunit protein S20 = RpsT (extended summary available)
         30S ribosomal subunit protein S21 = RpsU (summary available)
         30S ribosomal subunit protein S22 = Sra (summary available)

Component of: ribosome (summary available)

Summary:
Assembly of the 30S ribosomal subunit has been studied in real time. Initial assembly is linked to the formation of structured 16S rRNA regions, while later steps involve induced fit between ribosomal proteins and the rRNA [Adilakshmi08]. Discovery single-particle profiling was used to visualize assembly of the 30S ribosomal subunit by indentifying and following changes among 14 subunit assembly intermediates over time [Mulder10]. The kinetically favored assembly pathway of the 30S preinitiation complex has been determined [Milon12].

The function of the ribosomal P site has been reviewed [Noller05].

Relationship Links: PDB:Structure:1P6G , PDB:Structure:1P87 , PDB:Structure:2AVY

Enzymes activated by 30S ribosomal subunit, sorted by the type of activation, are:

Activator (Mechanism unknown) of: GTPase [Daigle04, Himeno04]

Credits:
Created 28-Mar-2006 by Keseler I , SRI International


Subunit of: ribosome

Subunit composition of ribosome = [(RrsA)(RpsA)(RpsB)(RpsC)(RpsD)(RpsE)(RpsF)(RpsG)(RpsH)(RpsI)(RpsJ)(RpsK)(RpsL)(RpsM)(RpsN)(RpsO)(RpsP)(RpsQ)(RpsR)(RpsS)(RpsT)(RpsU)(Sra)][(RrlA)(RrfA)(RplA)(RplB)(RplC)(RplD)(RplE)(RplF)([RplJ][(RplL)2]2)(RplI)(RplK)(RplM)(RplN)(RplO)(RplP)(RplQ)(RplR)(RplS)(RplT)(RplU)(RplV)(RplW)(RplX)(RplY)(RpmA)(RpmB)(RpmC)(RpmD)(RpmE)(RpmF)(RpmG)(RpmH)(RpmI)(RpmJ)]
         30S ribosomal subunit = (RrsA)(RpsA)(RpsB)(RpsC)(RpsD)(RpsE)(RpsF)(RpsG)(RpsH)(RpsI)(RpsJ)(RpsK)(RpsL)(RpsM)(RpsN)(RpsO)(RpsP)(RpsQ)(RpsR)(RpsS)(RpsT)(RpsU)(Sra) (summary available)
                 16S ribosomal RNA (rrsA) = RrsA (extended summary available)
                 30S ribosomal subunit protein S1 = RpsA (extended summary available)
                 30S ribosomal subunit protein S2 = RpsB (summary available)
                 30S ribosomal subunit protein S3 = RpsC (summary available)
                 30S ribosomal subunit protein S4 = RpsD (extended summary available)
                 30S ribosomal subunit protein S5 = RpsE (extended summary available)
                 30S ribosomal subunit protein S6 = RpsF (extended summary available)
                 30S ribosomal subunit protein S7 = RpsG (extended summary available)
                 30S ribosomal subunit protein S8 = RpsH (extended summary available)
                 30S ribosomal subunit protein S9 = RpsI (extended summary available)
                 30S ribosomal subunit protein S10 = RpsJ (extended summary available)
                 30S ribosomal subunit protein S11 = RpsK (summary available)
                 30S ribosomal subunit protein S12 = RpsL (extended summary available)
                 30S ribosomal subunit protein S13 = RpsM (extended summary available)
                 30S ribosomal subunit protein S14 = RpsN (summary available)
                 30S ribosomal subunit protein S15 = RpsO (extended summary available)
                 30S ribosomal subunit protein S16 = RpsP (summary available)
                 30S ribosomal subunit protein S17 = RpsQ (summary available)
                 30S ribosomal subunit protein S18 = RpsR (extended summary available)
                 30S ribosomal subunit protein S19 = RpsS (summary available)
                 30S ribosomal subunit protein S20 = RpsT (extended summary available)
                 30S ribosomal subunit protein S21 = RpsU (summary available)
                 30S ribosomal subunit protein S22 = Sra (summary available)
         50S ribosomal subunit = (RrlA)(RrfA)(RplA)(RplB)(RplC)(RplD)(RplE)(RplF)([RplJ][(RplL)2]2)(RplI)(RplK)(RplM)(RplN)(RplO)(RplP)(RplQ)(RplR)(RplS)(RplT)(RplU)(RplV)(RplW)(RplX)(RplY)(RpmA)(RpmB)(RpmC)(RpmD)(RpmE)(RpmF)(RpmG)(RpmH)(RpmI)(RpmJ)
                 23S ribosomal RNA (rrlA) = RrlA (extended summary available)
                 5S ribosomal RNA (rrfA) = RrfA (extended summary available)
                 50S ribosomal subunit protein L1 = RplA (extended summary available)
                 50S ribosomal subunit protein L2 = RplB (summary available)
                 50S ribosomal subunit protein L3 = RplC (summary available)
                 50S ribosomal subunit protein L4 = RplD (extended summary available)
                 50S ribosomal subunit protein L5 = RplE (summary available)
                 50S ribosomal subunit protein L6 = RplF (summary available)
                 50S ribosomal protein complex L8 = (RplJ)([RplL]2)2 (summary available)
                         50S ribosomal subunit protein L10 = RplJ (extended summary available)
                         50S ribosomal subunit protein L7/L12 dimer = (RplL)2
                                 50S ribosomal subunit protein L12 = RplL
                 50S ribosomal subunit protein L9 = RplI (summary available)
                 50S ribosomal subunit protein L11 = RplK (extended summary available)
                 50S ribosomal subunit protein L13 = RplM (extended summary available)
                 50S ribosomal subunit protein L14 = RplN (extended summary available)
                 50S ribosomal subunit protein L15 = RplO (summary available)
                 50S ribosomal subunit protein L16 = RplP (extended summary available)
                 50S ribosomal subunit protein L17 = RplQ (summary available)
                 50S ribosomal subunit protein L18 = RplR (extended summary available)
                 50S ribosomal subunit protein L19 = RplS (extended summary available)
                 50S ribosomal subunit protein L20 = RplT (extended summary available)
                 50S ribosomal subunit protein L21 = RplU (summary available)
                 50S ribosomal subunit protein L22 = RplV (extended summary available)
                 50S ribosomal subunit protein L23 = RplW (extended summary available)
                 50S ribosomal subunit protein L24 = RplX (summary available)
                 50S ribosomal subunit protein L25 = RplY (summary available)
                 50S ribosomal subunit protein L27 = RpmA (extended summary available)
                 50S ribosomal subunit protein L28 = RpmB (summary available)
                 50S ribosomal subunit protein L29 = RpmC (summary available)
                 50S ribosomal subunit protein L30 = RpmD (summary available)
                 50S ribosomal subunit protein L31 = RpmE (summary available)
                 50S ribosomal subunit protein L32 = RpmF (summary available)
                 50S ribosomal subunit protein L33 = RpmG (summary available)
                 50S ribosomal subunit protein L34 = RpmH (summary available)
                 50S ribosomal subunit protein L35 = RpmI (summary available)
                 50S ribosomal subunit protein L36 = RpmJ (summary available)

Summary:
The ribosome is a complex machinery that translates the genetic code.

A crystal structure of the E. coli ribosome has been determined at 3.5 Å resolution [Schuwirth05]. Additional crystal structures of the ribosome with tRNA bound in two functionally distinct states reveal how a ratchet-like motion of the small and large subunits contributes to translocation, termination of translation, and ribosome recycling [Zhang09b, Dunkle11].

Approximately eight molecules of Zn2+ are bound to the ribosome; therefore, it appears that a large fraction of intracellular Zn2+ is ribosome-associated [Hensley11].

Selected reviews: [Ramakrishnan02, Yonath05, Ogle05, Kaczanowska07]

Citations: [Kuhlenkoetter11]

Relationship Links: PDB:Structure:3R8N , PDB:Structure:3R8O , PDB:Structure:3R8S , PDB:Structure:3R8T

Credits:
Created 15-Jun-2006 by Keseler I , SRI International


Gene Local Context (not to scale): ?

Transcription Units:

Notes:

History:
10/20/97 Gene b1480 from Blattner lab Genbank (v. M52) entry merged into EcoCyc gene EG11508; confirmed by SwissProt match.


References

Adilakshmi08: Adilakshmi T, Bellur DL, Woodson SA (2008). "Concurrent nucleation of 16S folding and induced fit in 30S ribosome assembly." Nature 455(7217);1268-72. PMID: 18784650

Arnold99: Arnold RJ, Reilly JP (1999). "Observation of Escherichia coli ribosomal proteins and their posttranslational modifications by mass spectrometry." Anal Biochem 269(1);105-12. PMID: 10094780

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

Daigle04: Daigle DM, Brown ED (2004). "Studies of the interaction of Escherichia coli YjeQ with the ribosome in vitro." J Bacteriol 186(5);1381-7. PMID: 14973029

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

Dunkle11: Dunkle JA, Wang L, Feldman MB, Pulk A, Chen VB, Kapral GJ, Noeske J, Richardson JS, Blanchard SC, Cate JH (2011). "Structures of the bacterial ribosome in classical and hybrid states of tRNA binding." Science 332(6032);981-4. PMID: 21596992

FrancezCharlot05: Francez-Charlot A, Castanie-Cornet MP, Gutierrez C, Cam K (2005). "Osmotic Regulation of the Escherichia coli bdm (Biofilm-Dependent Modulation) Gene by the RcsCDB His-Asp Phosphorelay." J Bacteriol 187(11);3873-7. PMID: 15901715

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

GOA01: GOA, DDB, FB, MGI, ZFIN (2001). "Gene Ontology annotation through association of InterPro records with GO terms."

Hensley11: Hensley MP, Tierney DL, Crowder MW (2011). "Zn(II) binding to Escherichia coli 70S ribosomes." Biochemistry 50(46);9937-9. PMID: 22026583

Himeno04: Himeno H, Hanawa-Suetsugu K, Kimura T, Takagi K, Sugiyama W, Shirata S, Mikami T, Odagiri F, Osanai Y, Watanabe D, Goto S, Kalachnyuk L, Ushida C, Muto A (2004). "A novel GTPase activated by the small subunit of ribosome." Nucleic Acids Res 32(17);5303-9. PMID: 15466596

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

Izutsu01: Izutsu K, Wada C, Komine Y, Sako T, Ueguchi C, Nakura S, Wada A (2001). "Escherichia coli ribosome-associated protein SRA, whose copy number increases during stationary phase." J Bacteriol 183(9);2765-73. PMID: 11292794

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

Kaczanowska07: Kaczanowska M, Ryden-Aulin M (2007). "Ribosome biogenesis and the translation process in Escherichia coli." Microbiol Mol Biol Rev 71(3);477-94. PMID: 17804668

Kuhlenkoetter11: Kuhlenkoetter S, Wintermeyer W, Rodnina MV (2011). "Different substrate-dependent transition states in the active site of the ribosome." Nature 476(7360);351-4. PMID: 21804565

Milon12: Milon P, Maracci C, Filonava L, Gualerzi CO, Rodnina MV (2012). "Real-time assembly landscape of bacterial 30S translation initiation complex." Nat Struct Mol Biol 19(6);609-15. PMID: 22562136

Mulder10: Mulder AM, Yoshioka C, Beck AH, Bunner AE, Milligan RA, Potter CS, Carragher B, Williamson JR (2010). "Visualizing ribosome biogenesis: parallel assembly pathways for the 30S subunit." Science 330(6004);673-7. PMID: 21030658

Noller05: Noller HF, Hoang L, Fredrick K (2005). "The 30S ribosomal P site: a function of 16S rRNA." FEBS Lett 579(4);855-8. PMID: 15680962

Ogle05: Ogle JM, Ramakrishnan V (2005). "Structural insights into translational fidelity." Annu Rev Biochem 74;129-77. PMID: 15952884

Ramakrishnan02: Ramakrishnan V (2002). "Ribosome structure and the mechanism of translation." Cell 108(4);557-72. PMID: 11909526

Schuwirth05: Schuwirth BS, Borovinskaya MA, Hau CW, Zhang W, Vila-Sanjurjo A, Holton JM, Cate JH (2005). "Structures of the bacterial ribosome at 3.5 A resolution." Science 310(5749);827-34. PMID: 16272117

Selinger00: Selinger DW, Cheung KJ, Mei R, Johansson EM, Richmond CS, Blattner FR, Lockhart DJ, Church GM (2000). "RNA expression analysis using a 30 base pair resolution Escherichia coli genome array." Nat Biotechnol 18(12);1262-8. PMID: 11101804

Wada86a: Wada A (1986). "Analysis of Escherichia coli ribosomal proteins by an improved two dimensional gel electrophoresis. II. Characterization of four new proteins." J Biochem (Tokyo) 100(6);1595-605. PMID: 3553169

Yonath05: Yonath A (2005). "Antibiotics targeting ribosomes: resistance, selectivity, synergism and cellular regulation." Annu Rev Biochem 74;649-79. PMID: 16180279

Zhang09b: Zhang W, Dunkle JA, Cate JH (2009). "Structures of the ribosome in intermediate states of ratcheting." Science 325(5943);1014-7. PMID: 19696352

Other References Related to Gene Regulation

Kamenšek13: Kamenšek S, Žgur-Bertok D (2013). "Global transcriptional responses to the bacteriocin colicin M in Escherichia coli." BMC Microbiol 13;42. PMID: 23421615

Lacour04: Lacour S, Landini P (2004). "SigmaS-dependent gene expression at the onset of stationary phase in Escherichia coli: function of sigmaS-dependent genes and identification of their promoter sequences." J Bacteriol 186(21);7186-95. PMID: 15489429


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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 18.5 on Sun Nov 23, 2014, biocyc14.