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MetaCyc Polypeptide: 30S ribosomal subunit protein S18

Gene: rpsR Accession Numbers: EG10917 (MetaCyc), b4202, ECK4198

Species: Escherichia coli K-12 substr. MG1655

Component of:
30S ribosomal subunit
ribosome

Summary:
The S18 protein is a component of the 30S subunit of the ribosome.

The N-terminal alanine residue of S18 is acetylated by the RimI enzyme [Isono80, Arnold99]. N-terminal acetylation of S18 and S5 correlates with correct folding of the platform and central pseudoknot domains of 16S rRNA [Clatterbuck13].

S18 interacts with the central domain of 16S rRNA; the interaction is dependent on S8 and S15 [Gregory84, Moine88, Stern88]. S18 may be involved in binding of aminoacyl-tRNA to the P site of the ribosome [Ginzburg73]. S18 is photoaffinity labeled by puromycin, an analog of the 3' end of aminoacylated tRNA [Bischof94].

S18 was also shown to crosslink to IF3 [MacKeen80, Cooperman81], IF1 [Boileau83] and 4.5S RNA [Gu05].

Expression analysis of rpsFp indicates that it may be autoregulated by one or more of its operon components [Nakayashiki13]. Coexpressed S6:S18 were found to bind to the rpsF 5'-UTR in a region with structural similarity to their binding site in 16S rRNA. S6 together with S18 may thus be responsible for autoregulation of the rpsF-priB-rpsR-rplI operon [Matelska13].

Review: [Nesterchuk11]

Locations: cytosol, ribosome

Map Position: [4,423,862 -> 4,424,089]

Unification Links: ASAP:ABE-0013744 , CGSC:214 , DIP:DIP-47889N , DisProt:DP00146 , EchoBASE:EB0910 , EcoGene:EG10917 , EcoliWiki:b4202 , Mint:MINT-1247424 , ModBase:P0A7T7 , OU-Microarray:b4202 , PortEco:b4202 , PR:PRO_000023871 , Pride:P0A7T7 , Protein Model Portal:P0A7T7 , RefSeq:NP_418623 , RegulonDB:EG10917 , SMR:P0A7T7 , String:511145.b4202 , UniProt:P0A7T7

Relationship Links: InterPro:IN-FAMILY:IPR001648 , InterPro:IN-FAMILY:IPR018275 , Panther:IN-FAMILY:PTHR13479 , PDB:Structure:1M5G , PDB:Structure:1P6G , PDB:Structure:1P87 , PDB:Structure:1VS5 , PDB:Structure:1VS7 , PDB:Structure:2AVY , PDB:Structure:2AW7 , PDB:Structure:2GY9 , PDB:Structure:2GYB , PDB:Structure:2I2P , PDB:Structure:2I2U , PDB:Structure:2QAL , PDB:Structure:2QAN , PDB:Structure:2QB9 , PDB:Structure:2QBB , PDB:Structure:2QBD , PDB:Structure:2QBF , PDB:Structure:2QBH , PDB:Structure:2QBJ , PDB:Structure:2QOU , PDB:Structure:2QOW , PDB:Structure:2QOY , PDB:Structure:2QP0 , PDB:Structure:2VHO , PDB:Structure:2VHP , PDB:Structure:2WWL , PDB:Structure:2YKR , PDB:Structure:2Z4K , PDB:Structure:2Z4M , PDB:Structure:3DF1 , PDB:Structure:3DF3 , PDB:Structure:3E1A , PDB:Structure:3E1C , PDB:Structure:3FIH , PDB:Structure:3I1M , PDB:Structure:3I1O , PDB:Structure:3I1Q , PDB:Structure:3I1S , PDB:Structure:3I1Z , PDB:Structure:3I21 , PDB:Structure:3IZV , PDB:Structure:3IZW , PDB:Structure:3J00 , PDB:Structure:3J0U , PDB:Structure:3J0V , PDB:Structure:3J0X , PDB:Structure:3J0Z , PDB:Structure:3J10 , PDB:Structure:3J13 , PDB:Structure:3J18 , PDB:Structure:3J36 , PDB:Structure:3KC4 , PDB:Structure:3OAQ , PDB:Structure:3OAR , PDB:Structure:3OFA , PDB:Structure:3OFB , PDB:Structure:3OFO , PDB:Structure:3OFP , PDB:Structure:3OFX , PDB:Structure:3OFY , PDB:Structure:3OR9 , PDB:Structure:3ORA , PDB:Structure:3SFS , PDB:Structure:3UOQ , PDB:Structure:4A2I , PDB:Structure:4ADV , PDB:Structure:4GAQ , PDB:Structure:4GAS , PDB:Structure:4GD1 , PDB:Structure:4GD2 , PDB:Structure:4KIY , PDB:Structure:4KJ0 , PDB:Structure:4KJ2 , PDB:Structure:4KJ4 , PDB:Structure:4KJ6 , PDB:Structure:4KJ8 , PDB:Structure:4KJA , PDB:Structure:4KJC , Pfam:IN-FAMILY:PF01084 , Prints:IN-FAMILY:PR00974 , ProDom:IN-FAMILY:PD002239 , Prosite:IN-FAMILY:PS00057

Ortholog Links: Ecol199310Cyc (Escherichia coli CFT073):C5292 , EcoO157Cyc (Escherichia coli O157:H7 str. EDL933):RPSR , ShigellaCyc (Shigella flexneri 2a str. 2457T):RPSR

Gene-Reaction Schematic: ?

GO Terms:

Biological Process: GO:0006412 - translation Inferred by computational analysis [GOA06, GOA01]
Molecular Function: GO:0005515 - protein binding Inferred from experiment [Hauser14, Rajagopala14]
GO:0048027 - mRNA 5'-UTR binding Inferred from experiment [Matelska13]
GO:0070181 - small ribosomal subunit rRNA binding Inferred from experiment [Gregory84]
GO:0003723 - RNA binding Inferred by computational analysis [UniProtGOA11]
GO:0003735 - structural constituent of ribosome Inferred by computational analysis [GOA01]
GO:0019843 - rRNA binding Inferred by computational analysis [UniProtGOA11, GOA06]
Cellular Component: GO:0005829 - cytosol Inferred from experiment Inferred by computational analysis [DiazMejia09, Ishihama08]
GO:0022627 - cytosolic small ribosomal subunit Inferred from experiment [Hindennach71a]
GO:0005840 - ribosome Inferred by computational analysis [UniProtGOA11, GOA01]
GO:0030529 - ribonucleoprotein complex Inferred by computational analysis [UniProtGOA11]

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

Credits:
Last-Curated ? 23-Mar-2006 by Keseler I , SRI International


Subunit of: 30S ribosomal subunit

Synonyms: ribosome, small subunit

Species: Escherichia coli K-12 substr. MG1655

Subunit composition of 30S ribosomal subunit = [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)]
         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

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

Species: Escherichia coli K-12 substr. MG1655

Subunit composition of ribosome = [(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))][(RplA)(RplB)(RplC)(RplD)(RplE)(RplF)([RplJ][(RplL)2]2)(RplI)(RplJ)(RplK)(RplM)(RplN)(RplO)(RplP)(RplQ)(RplR)(RplS)(RplT)(RplU)(RplV)(RplW)(RplX)(RplY)(RpmA)(RpmB)(RpmC)(RpmD)(RpmE)(RpmF)(RpmG)(RpmH)(RpmI)(RpmJ)(5S ribosomal RNA (rrfA))(23S ribosomal RNA (rrlA))]
         30S ribosomal subunit = (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))
                 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 = (RplA)(RplB)(RplC)(RplD)(RplE)(RplF)([RplJ][(RplL)2]2)(RplI)(RplJ)(RplK)(RplM)(RplN)(RplO)(RplP)(RplQ)(RplR)(RplS)(RplT)(RplU)(RplV)(RplW)(RplX)(RplY)(RpmA)(RpmB)(RpmC)(RpmD)(RpmE)(RpmF)(RpmG)(RpmH)(RpmI)(RpmJ)(5S ribosomal RNA (rrfA))(23S ribosomal RNA (rrlA))
                 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
                         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 L10 = RplJ (extended 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)

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


Sequence Features

Feature Class Location Citations Comment
Cleavage-of-Initial-Methionine 1
[Yaguchi75, UniProt11a]
UniProt: Removed.
Acetylation-Modification 2
[UniProt10a]
UniProt: N-acetylalanine;
Chain 2 -> 75
[UniProt09]
UniProt: 30S ribosomal protein S18;
Sequence-Conflict 24
[Yaguchi75, UniProt10a]
Alternate sequence: E; UniProt: (in Ref. 5; AA sequence);
Acetylation-Modification 30
[Yu08]
 

History:
10/20/97 Gene b4202 from Blattner lab Genbank (v. M52) entry merged into EcoCyc gene EG10917; confirmed by SwissProt match.


References

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

Bischof94: Bischof O, Kruft V, Wittmann-Liebold B (1994). "Analysis of the puromycin binding site in the 70 S ribosome of Escherichia coli at the peptide level." J Biol Chem 269(28);18315-9. PMID: 8034577

Boileau83: Boileau G, Butler P, Hershey JW, Traut RR (1983). "Direct cross-links between initiation factors 1, 2, and 3 and ribosomal proteins promoted by 2-iminothiolane." Biochemistry 22(13);3162-70. PMID: 6349681

Clatterbuck13: Clatterbuck Soper SF, Dator RP, Limbach PA, Woodson SA (2013). "In vivo X-ray footprinting of pre-30S ribosomes reveals chaperone-dependent remodeling of late assembly intermediates." Mol Cell 52(4);506-16. PMID: 24207057

Cooperman81: Cooperman BS, Expert-Bezancon A, Kahan L, Dondon J, Grunberg-Manago M (1981). "IF-3 crosslinking to Escherichia coli ribosomal 30 S subunits by three different light-dependent procedures: identification of 30 S proteins crosslinked to IF-3--utilization of a new two-stage crosslinking reagent, p-nitrobenzylmaleimide." Arch Biochem Biophys 208(2);554-62. PMID: 7020604

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

Ginzburg73: Ginzburg I, Miskin R, Zamir A (1973). "N-ethyl maleimide as a probe for the study of functional sites and conformations of 30 S ribosomal subunits." J Mol Biol 79(3);481-94. PMID: 4585975

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

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

Gregory84: Gregory RJ, Zeller ML, Thurlow DL, Gourse RL, Stark MJ, Dahlberg AE, Zimmermann RA (1984). "Interaction of ribosomal proteins S6, S8, S15 and S18 with the central domain of 16 S ribosomal RNA from Escherichia coli." J Mol Biol 178(2);287-302. PMID: 6208366

Gu05: Gu SQ, Jockel J, Beinker P, Warnecke J, Semenkov YP, Rodnina MV, Wintermeyer W (2005). "Conformation of 4.5S RNA in the signal recognition particle and on the 30S ribosomal subunit." RNA 11(9);1374-84. PMID: 16043501

Hauser14: Hauser R, Ceol A, Rajagopala SV, Mosca R, Siszler G, Wermke N, Sikorski P, Schwarz F, Schick M, Wuchty S, Aloy P, Uetz P (2014). "A Second-generation Protein-Protein Interaction Network of Helicobacter pylori." Mol Cell Proteomics 13(5);1318-29. PMID: 24627523

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

Hindennach71a: Hindennach I, Stoffler G, Wittmann HG (1971). "Ribosomal proteins. Isolation of the proteins from 30S ribosomal subunits of Escherichia coli." Eur J Biochem 23(1);7-11. PMID: 4942549

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

Isono80: Isono K, Isono S (1980). "Ribosomal protein modification in Escherichia coli. II. Studies of a mutant lacking the N-terminal acetylation of protein S18." Mol Gen Genet 177(4);645-51. PMID: 6991870

MacKeen80: MacKeen LA, Kahan L, Wahba AJ, Schwartz I (1980). "Photochemical cross-linking of initiation factor-3 to Escherichia coli 30 S ribosomal subunits." J Biol Chem 255(21);10526-31. PMID: 7000779

Matelska13: Matelska D, Purta E, Panek S, Boniecki MJ, Bujnicki JM, Dunin-Horkawicz S (2013). "S6:S18 ribosomal protein complex interacts with a structural motif present in its own mRNA." RNA 19(10);1341-8. PMID: 23980204

Moine88: Moine H, Bienaime C, Mougel M, Reinbolt J, Ebel JP, Ehresmann C, Ehresmann B (1988). "Crosslinking of ribosomal protein S18 to 16 S RNA in E.coli ribosomal 30 S subunits by the use of a reversible crosslinking agent: trans-diamminedichloroplatinum(II)." FEBS Lett 228(1);1-6. PMID: 2449359

Nakayashiki13: Nakayashiki T, Mori H (2013). "Genome-wide screening with hydroxyurea reveals a link between nonessential ribosomal proteins and reactive oxygen species production." J Bacteriol 195(6);1226-35. PMID: 23292777

Nesterchuk11: Nesterchuk MV, Sergiev PV, Dontsova OA (2011). "Posttranslational Modifications of Ribosomal Proteins in Escherichia coli." Acta Naturae 3(2);22-33. PMID: 22649682

Rajagopala14: Rajagopala SV, Sikorski P, Kumar A, Mosca R, Vlasblom J, Arnold R, Franca-Koh J, Pakala SB, Phanse S, Ceol A, Hauser R, Siszler G, Wuchty S, Emili A, Babu M, Aloy P, Pieper R, Uetz P (2014). "The binary protein-protein interaction landscape of Escherichia coli." Nat Biotechnol 32(3);285-90. PMID: 24561554

Stern88: Stern S, Powers T, Changchien LM, Noller HF (1988). "Interaction of ribosomal proteins S5, S6, S11, S12, S18 and S21 with 16 S rRNA." J Mol Biol 201(4);683-95. PMID: 2459389

UniProt09: UniProt Consortium (2009). "UniProt version 15.8 released on 2009-10-01 00:00:00." Database.

UniProt10a: UniProt Consortium (2010). "UniProt version 2010-11 released on 2010-11-02 00:00:00." Database.

UniProt11a: UniProt Consortium (2011). "UniProt version 2011-06 released on 2011-06-30 00:00:00." Database.

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

Yaguchi75: Yaguchi M (1975). "Primary structure of protein S18 from the small Escherichia coli ribosomal subunit." FEBS Lett 59(2);217-20. PMID: 776663

Yu08: Yu BJ, Kim JA, Moon JH, Ryu SE, Pan JG (2008). "The diversity of lysine-acetylated proteins in Escherichia coli." J Microbiol Biotechnol 18(9);1529-36. PMID: 18852508


Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
Page generated by SRI International Pathway Tools version 18.5 on Mon Nov 24, 2014, BIOCYC13B.