RS21_ECOLI
ID RS21_ECOLI Reviewed; 71 AA.
AC P68679; P02379; Q2M9E0; Q8ZI69;
DT 21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 2.
DT 03-AUG-2022, entry version 158.
DE RecName: Full=30S ribosomal protein S21;
DE AltName: Full=Small ribosomal subunit protein bS21 {ECO:0000303|PubMed:24524803};
GN Name=rpsU; OrderedLocusNames=b3065, JW3037;
OS Escherichia coli (strain K12).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=83333;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=K12;
RX PubMed=6186393; DOI=10.1016/0092-8674(83)90453-1;
RA Burton Z.F., Gross C.A., Watanabe K.K., Burgess R.R.;
RT "The operon that encodes the sigma subunit of RNA polymerase also encodes
RT ribosomal protein S21 and DNA primase in E. coli K12.";
RL Cell 32:335-349(1983).
RN [2]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=K12;
RX PubMed=6222240; DOI=10.1007/bf00326054;
RA Lupski J.R., Smiley B.L., Godson G.N.;
RT "Regulation of the rpsU-dnaG-rpoD macromolecular synthesis operon and the
RT initiation of DNA replication in Escherichia coli K-12.";
RL Mol. Gen. Genet. 189:48-57(1983).
RN [3]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=K12 / MG1655 / ATCC 47076;
RX PubMed=9278503; DOI=10.1126/science.277.5331.1453;
RA Blattner F.R., Plunkett G. III, Bloch C.A., Perna N.T., Burland V.,
RA Riley M., Collado-Vides J., Glasner J.D., Rode C.K., Mayhew G.F.,
RA Gregor J., Davis N.W., Kirkpatrick H.A., Goeden M.A., Rose D.J., Mau B.,
RA Shao Y.;
RT "The complete genome sequence of Escherichia coli K-12.";
RL Science 277:1453-1462(1997).
RN [4]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=K12 / W3110 / ATCC 27325 / DSM 5911;
RX PubMed=16738553; DOI=10.1038/msb4100049;
RA Hayashi K., Morooka N., Yamamoto Y., Fujita K., Isono K., Choi S.,
RA Ohtsubo E., Baba T., Wanner B.L., Mori H., Horiuchi T.;
RT "Highly accurate genome sequences of Escherichia coli K-12 strains MG1655
RT and W3110.";
RL Mol. Syst. Biol. 2:E1-E5(2006).
RN [5]
RP PROTEIN SEQUENCE OF 2-71, AND SUBUNIT.
RC STRAIN=K;
RX PubMed=765257; DOI=10.1515/bchm2.1975.356.2.1955;
RA Vandekerckhove J., Rombauts W., Peeters B., Wittmann-Liebold B.;
RT "Determination of the complete amino acid sequence of protein S21 from
RT Escherichia coli ribosomes.";
RL Hoppe-Seyler's Z. Physiol. Chem. 356:1955-1976(1975).
RN [6]
RP PROTEIN SEQUENCE OF 26-35, SUBUNIT, AND CROSS-LINKING TO RRNA.
RC STRAIN=MRE-600;
RX PubMed=7556101; DOI=10.1002/j.1460-2075.1995.tb00137.x;
RA Urlaub H., Kruft V., Bischof O., Mueller E.-C., Wittmann-Liebold B.;
RT "Protein-rRNA binding features and their structural and functional
RT implications in ribosomes as determined by cross-linking studies.";
RL EMBO J. 14:4578-4588(1995).
RN [7]
RP MASS SPECTROMETRY, AND SUBUNIT.
RC STRAIN=K12 / ATCC 25404 / DSM 5698 / NCIMB 11290;
RX PubMed=10094780; DOI=10.1006/abio.1998.3077;
RA Arnold R.J., Reilly J.P.;
RT "Observation of Escherichia coli ribosomal proteins and their
RT posttranslational modifications by mass spectrometry.";
RL Anal. Biochem. 269:105-112(1999).
RN [8]
RP NOMENCLATURE.
RX PubMed=24524803; DOI=10.1016/j.sbi.2014.01.002;
RA Ban N., Beckmann R., Cate J.H.D., Dinman J.D., Dragon F., Ellis S.R.,
RA Lafontaine D.L.J., Lindahl L., Liljas A., Lipton J.M., McAlear M.A.,
RA Moore P.B., Noller H.F., Ortega J., Panse V.G., Ramakrishnan V.,
RA Spahn C.M.T., Steitz T.A., Tchorzewski M., Tollervey D., Warren A.J.,
RA Williamson J.R., Wilson D., Yonath A., Yusupov M.;
RT "A new system for naming ribosomal proteins.";
RL Curr. Opin. Struct. Biol. 24:165-169(2014).
RN [9]
RP X-RAY CRYSTALLOGRAPHY (3.46 ANGSTROMS) OF 2 DIFFERENT RIBOSOME STRUCTURES,
RP AND SUBUNIT.
RC STRAIN=MRE-600;
RX PubMed=16272117; DOI=10.1126/science.1117230;
RA Schuwirth B.S., Borovinskaya M.A., Hau C.W., Zhang W., Vila-Sanjurjo A.,
RA Holton J.M., Cate J.H.D.;
RT "Structures of the bacterial ribosome at 3.5 A resolution.";
RL Science 310:827-834(2005).
RN [10]
RP STRUCTURE BY ELECTRON MICROSCOPY (3.0 ANGSTROMS) OF 70S RIBOSOME IN COMPLEX
RP WITH ARFA AND RF2, AND SUBUNIT.
RX PubMed=27906160; DOI=10.1038/nature20822;
RA Ma C., Kurita D., Li N., Chen Y., Himeno H., Gao N.;
RT "Mechanistic insights into the alternative translation termination by ArfA
RT and RF2.";
RL Nature 541:550-553(2017).
RN [11]
RP STRUCTURE BY ELECTRON MICROSCOPY (3.1 ANGSTROMS) OF 70S RIBOSOME IN COMPLEX
RP WITH ARFA AND RF2, AND SUBUNIT.
RX PubMed=27906161; DOI=10.1038/nature20821;
RA Huter P., Mueller C., Beckert B., Arenz S., Berninghausen O., Beckmann R.,
RA Wilson D.N.;
RT "Structural basis for ArfA-RF2-mediated translation termination on mRNAs
RT lacking stop codons.";
RL Nature 541:546-549(2017).
RN [12]
RP STRUCTURE BY ELECTRON MICROSCOPY (2.97 ANGSTROMS) OF 70S RIBOSOME IN
RP COMPLEX WITH ARFA AND RF2, AND SUBUNIT.
RX PubMed=27934701; DOI=10.1126/science.aai9127;
RA James N.R., Brown A., Gordiyenko Y., Ramakrishnan V.;
RT "Translational termination without a stop codon.";
RL Science 354:1437-1440(2016).
RN [13]
RP STRUCTURE BY ELECTRON MICROSCOPY (3.52 ANGSTROMS) OF 70S RIBOSOME IN
RP COMPLEX WITH ARFA AND RF2, AND SUBUNIT.
RX PubMed=28077875; DOI=10.1038/nature21053;
RA Zeng F., Chen Y., Remis J., Shekhar M., Phillips J.C., Tajkhorshid E.,
RA Jin H.;
RT "Structural basis of co-translational quality control by ArfA and RF2 bound
RT to ribosome.";
RL Nature 541:554-557(2017).
CC -!- SUBUNIT: Part of the 30S ribosomal subunit (PubMed:765257,
CC PubMed:10094780, PubMed:7556101, PubMed:16272117, PubMed:27934701,
CC PubMed:27906160, PubMed:27906161). {ECO:0000269|PubMed:10094780,
CC ECO:0000269|PubMed:16272117, ECO:0000269|PubMed:27906160,
CC ECO:0000269|PubMed:27906161, ECO:0000269|PubMed:27934701,
CC ECO:0000269|PubMed:7556101, ECO:0000269|PubMed:765257}.
CC -!- MASS SPECTROMETRY: Mass=8368.8; Method=MALDI;
CC Evidence={ECO:0000269|PubMed:10094780};
CC -!- SIMILARITY: Belongs to the bacterial ribosomal protein bS21 family.
CC {ECO:0000305}.
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DR EMBL; J01687; AAA24599.1; -; Genomic_DNA.
DR EMBL; V00346; CAA23635.1; -; Genomic_DNA.
DR EMBL; U28379; AAA89145.1; -; Genomic_DNA.
DR EMBL; U00096; AAC76101.1; -; Genomic_DNA.
DR EMBL; AP009048; BAE77116.1; -; Genomic_DNA.
DR PIR; A02749; R3EC21.
DR RefSeq; NP_417537.1; NC_000913.3.
DR RefSeq; WP_001144069.1; NZ_STEB01000001.1.
DR PDB; 2YKR; EM; 9.80 A; U=4-54.
DR PDB; 3J9Y; EM; 3.90 A; u=1-71.
DR PDB; 3J9Z; EM; 3.60 A; SU=2-71.
DR PDB; 3JA1; EM; 3.60 A; SU=2-71.
DR PDB; 3JBU; EM; 3.64 A; U=1-71.
DR PDB; 3JBV; EM; 3.32 A; U=1-71.
DR PDB; 3JCD; EM; 3.70 A; u=1-71.
DR PDB; 3JCE; EM; 3.20 A; u=1-71.
DR PDB; 3JCJ; EM; 3.70 A; 2=1-71.
DR PDB; 3JCN; EM; 4.60 A; w=1-71.
DR PDB; 4A2I; EM; 16.50 A; U=4-54.
DR PDB; 4ADV; EM; 13.50 A; U=1-71.
DR PDB; 4U1U; X-ray; 2.95 A; AU/CU=4-54.
DR PDB; 4U1V; X-ray; 3.00 A; AU/CU=4-54.
DR PDB; 4U20; X-ray; 2.90 A; AU/CU=4-54.
DR PDB; 4U24; X-ray; 2.90 A; AU/CU=4-54.
DR PDB; 4U25; X-ray; 2.90 A; AU/CU=4-54.
DR PDB; 4U26; X-ray; 2.80 A; AU/CU=4-54.
DR PDB; 4U27; X-ray; 2.80 A; AU/CU=4-54.
DR PDB; 4V4H; X-ray; 3.46 A; AU/CU=1-71.
DR PDB; 4V4Q; X-ray; 3.46 A; AU/CU=1-71.
DR PDB; 4V50; X-ray; 3.22 A; AU/CU=2-71.
DR PDB; 4V52; X-ray; 3.21 A; AU/CU=2-71.
DR PDB; 4V53; X-ray; 3.54 A; AU/CU=2-71.
DR PDB; 4V54; X-ray; 3.30 A; AU/CU=2-71.
DR PDB; 4V55; X-ray; 4.00 A; AU/CU=2-71.
DR PDB; 4V56; X-ray; 3.93 A; AU/CU=2-71.
DR PDB; 4V57; X-ray; 3.50 A; AU/CU=2-71.
DR PDB; 4V5B; X-ray; 3.74 A; BU/DU=1-71.
DR PDB; 4V5H; EM; 5.80 A; AU=4-54.
DR PDB; 4V5Y; X-ray; 4.45 A; AU/CU=2-71.
DR PDB; 4V64; X-ray; 3.50 A; AU/CU=1-71.
DR PDB; 4V65; EM; 9.00 A; AQ=1-71.
DR PDB; 4V66; EM; 9.00 A; AQ=1-71.
DR PDB; 4V69; EM; 6.70 A; AU=4-54.
DR PDB; 4V6C; X-ray; 3.19 A; AU/CU=1-71.
DR PDB; 4V6D; X-ray; 3.81 A; AU/CU=1-71.
DR PDB; 4V6E; X-ray; 3.71 A; AU/CU=1-71.
DR PDB; 4V6K; EM; 8.25 A; BY=1-71.
DR PDB; 4V6L; EM; 13.20 A; AY=1-71.
DR PDB; 4V6M; EM; 7.10 A; AU=2-71.
DR PDB; 4V6N; EM; 12.10 A; BX=2-71.
DR PDB; 4V6O; EM; 14.70 A; AX=2-71.
DR PDB; 4V6P; EM; 13.50 A; AX=2-71.
DR PDB; 4V6Q; EM; 11.50 A; AX=2-71.
DR PDB; 4V6R; EM; 11.50 A; AX=2-71.
DR PDB; 4V6S; EM; 13.10 A; BW=2-71.
DR PDB; 4V6T; EM; 8.30 A; AU=4-54.
DR PDB; 4V6V; EM; 9.80 A; AU=2-71.
DR PDB; 4V6Y; EM; 12.00 A; AU=4-54.
DR PDB; 4V6Z; EM; 12.00 A; AU=4-54.
DR PDB; 4V70; EM; 17.00 A; AU=4-54.
DR PDB; 4V71; EM; 20.00 A; AU=4-54.
DR PDB; 4V72; EM; 13.00 A; AU=4-54.
DR PDB; 4V73; EM; 15.00 A; AU=4-54.
DR PDB; 4V74; EM; 17.00 A; AU=4-54.
DR PDB; 4V75; EM; 12.00 A; AU=4-54.
DR PDB; 4V76; EM; 17.00 A; AU=4-54.
DR PDB; 4V77; EM; 17.00 A; AU=4-54.
DR PDB; 4V78; EM; 20.00 A; AU=4-54.
DR PDB; 4V79; EM; 15.00 A; AU=4-54.
DR PDB; 4V7A; EM; 9.00 A; AU=4-54.
DR PDB; 4V7B; EM; 6.80 A; AU=1-71.
DR PDB; 4V7C; EM; 7.60 A; AU=2-71.
DR PDB; 4V7D; EM; 7.60 A; BU=2-71.
DR PDB; 4V7I; EM; 9.60 A; BU=1-71.
DR PDB; 4V7S; X-ray; 3.25 A; AU/CU=4-54.
DR PDB; 4V7T; X-ray; 3.19 A; AU/CU=4-54.
DR PDB; 4V7U; X-ray; 3.10 A; AU/CU=4-54.
DR PDB; 4V7V; X-ray; 3.29 A; AU/CU=4-54.
DR PDB; 4V85; X-ray; 3.20 A; AU=1-71.
DR PDB; 4V89; X-ray; 3.70 A; AU=1-71.
DR PDB; 4V9C; X-ray; 3.30 A; AU/CU=1-71.
DR PDB; 4V9D; X-ray; 3.00 A; AU/BU=4-54.
DR PDB; 4V9O; X-ray; 2.90 A; BU/DU/FU/HU=1-71.
DR PDB; 4V9P; X-ray; 2.90 A; BU/DU/FU/HU=1-71.
DR PDB; 4WF1; X-ray; 3.09 A; AU/CU=4-54.
DR PDB; 4WOI; X-ray; 3.00 A; AU/DU=1-71.
DR PDB; 4WWW; X-ray; 3.10 A; QU/XU=4-54.
DR PDB; 4YBB; X-ray; 2.10 A; AU/BU=2-57.
DR PDB; 5AFI; EM; 2.90 A; u=1-71.
DR PDB; 5H5U; EM; 3.00 A; 2=2-71.
DR PDB; 5IQR; EM; 3.00 A; z=1-71.
DR PDB; 5J5B; X-ray; 2.80 A; AU/BU=2-57.
DR PDB; 5J7L; X-ray; 3.00 A; AU/BU=2-57.
DR PDB; 5J88; X-ray; 3.32 A; AU/BU=2-57.
DR PDB; 5J8A; X-ray; 3.10 A; AU/BU=2-57.
DR PDB; 5J91; X-ray; 2.96 A; AU/BU=2-57.
DR PDB; 5JC9; X-ray; 3.03 A; AU/BU=2-57.
DR PDB; 5JTE; EM; 3.60 A; AU=1-71.
DR PDB; 5JU8; EM; 3.60 A; AU=1-71.
DR PDB; 5KCR; EM; 3.60 A; 1u=1-71.
DR PDB; 5KCS; EM; 3.90 A; 1u=1-71.
DR PDB; 5KPS; EM; 3.90 A; 26=1-71.
DR PDB; 5KPV; EM; 4.10 A; 25=1-71.
DR PDB; 5KPW; EM; 3.90 A; 25=1-71.
DR PDB; 5KPX; EM; 3.90 A; 25=1-71.
DR PDB; 5L3P; EM; 3.70 A; u=1-71.
DR PDB; 5LZA; EM; 3.60 A; u=4-68.
DR PDB; 5LZB; EM; 5.30 A; u=4-68.
DR PDB; 5LZC; EM; 4.80 A; u=4-68.
DR PDB; 5LZD; EM; 3.40 A; u=4-68.
DR PDB; 5LZE; EM; 3.50 A; u=4-68.
DR PDB; 5LZF; EM; 4.60 A; u=4-68.
DR PDB; 5MDV; EM; 2.97 A; z=1-71.
DR PDB; 5MDW; EM; 3.06 A; z=1-71.
DR PDB; 5MDY; EM; 3.35 A; z=1-71.
DR PDB; 5MDZ; EM; 3.10 A; z=1-71.
DR PDB; 5ME0; EM; 13.50 A; U=1-71.
DR PDB; 5ME1; EM; 13.50 A; U=1-71.
DR PDB; 5MGP; EM; 3.10 A; u=4-68.
DR PDB; 5MY1; EM; 7.60 A; U=1-71.
DR PDB; 5NP6; EM; 3.60 A; X=4-68.
DR PDB; 5NWY; EM; 2.93 A; K=1-71.
DR PDB; 5O2R; EM; 3.40 A; u=4-68.
DR PDB; 5U4I; EM; 3.50 A; u=1-71.
DR PDB; 5U9F; EM; 3.20 A; U=1-71.
DR PDB; 5U9G; EM; 3.20 A; U=1-71.
DR PDB; 5UYK; EM; 3.90 A; U=4-68.
DR PDB; 5UYL; EM; 3.60 A; U=4-68.
DR PDB; 5UYM; EM; 3.20 A; U=4-68.
DR PDB; 5UYN; EM; 4.00 A; U=4-68.
DR PDB; 5UYP; EM; 3.90 A; U=4-68.
DR PDB; 5UYQ; EM; 3.80 A; U=4-68.
DR PDB; 5WDT; EM; 3.00 A; u=4-68.
DR PDB; 5WE4; EM; 3.10 A; u=4-68.
DR PDB; 5WE6; EM; 3.40 A; u=4-68.
DR PDB; 5WFK; EM; 3.40 A; u=4-68.
DR PDB; 6BU8; EM; 3.50 A; U=4-68.
DR PDB; 6C4I; EM; 3.24 A; u=1-71.
DR PDB; 6DNC; EM; 3.70 A; HB=1-71.
DR PDB; 6ENF; EM; 3.20 A; u=4-68.
DR PDB; 6ENJ; EM; 3.70 A; u=4-68.
DR PDB; 6ENU; EM; 3.10 A; u=4-68.
DR PDB; 6GWT; EM; 3.80 A; u=4-68.
DR PDB; 6GXM; EM; 3.80 A; u=4-68.
DR PDB; 6GXN; EM; 3.90 A; u=4-68.
DR PDB; 6GXO; EM; 3.90 A; u=4-68.
DR PDB; 6GXP; EM; 4.40 A; u=4-68.
DR PDB; 6H4N; EM; 3.00 A; u=4-68.
DR PDB; 6H58; EM; 7.90 A; u/uu=4-68.
DR PDB; 6HRM; EM; 2.96 A; z=2-71.
DR PDB; 6I7V; X-ray; 2.90 A; AU/BU=4-57.
DR PDB; 6O9J; EM; 3.90 A; u=4-54.
DR PDB; 6O9K; EM; 4.00 A; u=4-54.
DR PDB; 6OFX; EM; 3.30 A; Z=4-68.
DR PDB; 6OG7; EM; 3.30 A; Z=4-68.
DR PDB; 6ORE; EM; 2.90 A; z=2-71.
DR PDB; 6ORL; EM; 3.50 A; z=2-71.
DR PDB; 6OST; EM; 4.20 A; z=2-71.
DR PDB; 6OT3; EM; 3.90 A; z=2-71.
DR PDB; 6OUO; EM; 3.70 A; z=2-71.
DR PDB; 6Q97; EM; 3.90 A; z=2-71.
DR PDB; 6Q98; EM; 4.30 A; z=1-71.
DR PDB; 6Q9A; EM; 3.70 A; z=2-71.
DR PDB; 6SZS; EM; 3.06 A; u=1-71.
DR PDB; 6TBV; EM; 2.70 A; S211=1-71.
DR PDB; 6TC3; EM; 2.70 A; S211=1-71.
DR PDB; 6VWL; EM; 3.10 A; t=1-71.
DR PDB; 6VWM; EM; 3.40 A; t=1-71.
DR PDB; 6VWN; EM; 3.40 A; t=1-71.
DR PDB; 6WD6; EM; 3.70 A; Z=4-68.
DR PDB; 6WDB; EM; 4.00 A; Z=4-68.
DR PDB; 6WDC; EM; 4.20 A; Z=4-68.
DR PDB; 6WDD; EM; 3.20 A; Z=4-68.
DR PDB; 6WDE; EM; 3.00 A; Z=4-68.
DR PDB; 6WDF; EM; 3.30 A; Z=4-68.
DR PDB; 6WDG; EM; 3.30 A; Z=4-68.
DR PDB; 6WDH; EM; 4.30 A; Z=4-68.
DR PDB; 6WDI; EM; 4.00 A; Z=4-68.
DR PDB; 6WDJ; EM; 3.70 A; Z=4-68.
DR PDB; 6WDK; EM; 3.60 A; Z=4-68.
DR PDB; 6WDL; EM; 3.70 A; Z=4-68.
DR PDB; 6WDM; EM; 3.60 A; Z=4-68.
DR PDB; 6WNV; EM; 3.50 A; Z=4-68.
DR PDB; 6WNW; EM; 3.20 A; Z=4-68.
DR PDB; 6XE0; EM; 6.80 A; U=4-54.
DR PDB; 6XZA; EM; 2.66 A; U1=2-57.
DR PDB; 6XZB; EM; 2.54 A; U1=2-57.
DR PDB; 6Y69; EM; 2.86 A; u=4-68.
DR PDB; 6ZTL; EM; 3.50 A; AU=1-71.
DR PDB; 7ABZ; EM; 3.21 A; z=2-57.
DR PDB; 7AC7; EM; 3.08 A; z=2-71.
DR PDB; 7ACJ; EM; 3.20 A; z=2-71.
DR PDB; 7ACR; EM; 3.44 A; z=2-71.
DR PDB; 7AFO; EM; 3.93 A; U=1-71.
DR PDB; 7B5K; EM; 2.90 A; u=2-57.
DR PDB; 7BOD; EM; 2.88 A; U=1-71.
DR PDB; 7BOE; EM; 2.90 A; U=1-71.
DR PDB; 7BOI; EM; 2.98 A; U=1-71.
DR PDB; 7D6Z; EM; 3.40 A; 1=1-71.
DR PDB; 7D80; EM; 4.10 A; V=1-71.
DR PDB; 7JSS; EM; 3.70 A; Z=4-68.
DR PDB; 7JSW; EM; 3.80 A; Z=4-68.
DR PDB; 7JSZ; EM; 3.70 A; Z=4-68.
DR PDB; 7JT1; EM; 3.30 A; Z=4-68.
DR PDB; 7JT2; EM; 3.50 A; Z=4-68.
DR PDB; 7JT3; EM; 3.70 A; Z=4-68.
DR PDB; 7K50; EM; 3.40 A; Z=4-68.
DR PDB; 7K51; EM; 3.50 A; Z=4-68.
DR PDB; 7K52; EM; 3.40 A; Z=4-68.
DR PDB; 7K53; EM; 3.20 A; Z=4-68.
DR PDB; 7K54; EM; 3.20 A; Z=4-68.
DR PDB; 7K55; EM; 3.30 A; Z=4-68.
DR PDB; 7LV0; EM; 3.20 A; Z=4-68.
DR PDB; 7N1P; EM; 2.33 A; SU=1-71.
DR PDB; 7N2C; EM; 2.72 A; SU=1-71.
DR PDB; 7N2U; EM; 2.53 A; SU=1-71.
DR PDB; 7N2V; EM; 2.54 A; SU=1-71.
DR PDB; 7N30; EM; 2.66 A; SU=1-71.
DR PDB; 7N31; EM; 2.69 A; SU=1-71.
DR PDB; 7NAR; EM; 3.00 A; U=1-71.
DR PDB; 7NAS; EM; 3.31 A; U=1-71.
DR PDB; 7NAT; EM; 3.59 A; U=1-71.
DR PDB; 7NBU; EM; 3.11 A; U=2-71.
DR PDB; 7O19; EM; 2.90 A; AU=1-71.
DR PDB; 7O1A; EM; 2.40 A; AU=1-71.
DR PDB; 7O1C; EM; 2.60 A; AU=1-71.
DR PDB; 7O5H; EM; 3.10 A; U=2-57.
DR PDB; 7OE1; EM; 3.05 A; U=1-71.
DR PDB; 7OIZ; EM; 2.90 A; U=1-71.
DR PDB; 7OJ0; EM; 3.50 A; U=1-71.
DR PDB; 7P3K; EM; 2.90 A; U=1-71.
DR PDB; 7PJV; EM; 3.10 A; u=1-71.
DR PDB; 7PJY; EM; 3.10 A; u=1-71.
DR PDB; 7SS9; EM; 3.90 A; Z=4-68.
DR PDB; 7SSD; EM; 3.30 A; Z=4-68.
DR PDB; 7SSL; EM; 3.80 A; Z=4-68.
DR PDB; 7SSN; EM; 3.20 A; Z=4-68.
DR PDB; 7SSO; EM; 3.20 A; Z=4-68.
DR PDB; 7SSW; EM; 3.80 A; Z=4-68.
DR PDB; 7ST2; EM; 2.90 A; Z=4-68.
DR PDB; 7ST6; EM; 3.00 A; Z=4-68.
DR PDB; 7ST7; EM; 3.20 A; Z=4-68.
DR PDBsum; 2YKR; -.
DR PDBsum; 3J9Y; -.
DR PDBsum; 3J9Z; -.
DR PDBsum; 3JA1; -.
DR PDBsum; 3JBU; -.
DR PDBsum; 3JBV; -.
DR PDBsum; 3JCD; -.
DR PDBsum; 3JCE; -.
DR PDBsum; 3JCJ; -.
DR PDBsum; 3JCN; -.
DR PDBsum; 4A2I; -.
DR PDBsum; 4ADV; -.
DR PDBsum; 4U1U; -.
DR PDBsum; 4U1V; -.
DR PDBsum; 4U20; -.
DR PDBsum; 4U24; -.
DR PDBsum; 4U25; -.
DR PDBsum; 4U26; -.
DR PDBsum; 4U27; -.
DR PDBsum; 4V4H; -.
DR PDBsum; 4V4Q; -.
DR PDBsum; 4V50; -.
DR PDBsum; 4V52; -.
DR PDBsum; 4V53; -.
DR PDBsum; 4V54; -.
DR PDBsum; 4V55; -.
DR PDBsum; 4V56; -.
DR PDBsum; 4V57; -.
DR PDBsum; 4V5B; -.
DR PDBsum; 4V5H; -.
DR PDBsum; 4V5Y; -.
DR PDBsum; 4V64; -.
DR PDBsum; 4V65; -.
DR PDBsum; 4V66; -.
DR PDBsum; 4V69; -.
DR PDBsum; 4V6C; -.
DR PDBsum; 4V6D; -.
DR PDBsum; 4V6E; -.
DR PDBsum; 4V6K; -.
DR PDBsum; 4V6L; -.
DR PDBsum; 4V6M; -.
DR PDBsum; 4V6N; -.
DR PDBsum; 4V6O; -.
DR PDBsum; 4V6P; -.
DR PDBsum; 4V6Q; -.
DR PDBsum; 4V6R; -.
DR PDBsum; 4V6S; -.
DR PDBsum; 4V6T; -.
DR PDBsum; 4V6V; -.
DR PDBsum; 4V6Y; -.
DR PDBsum; 4V6Z; -.
DR PDBsum; 4V70; -.
DR PDBsum; 4V71; -.
DR PDBsum; 4V72; -.
DR PDBsum; 4V73; -.
DR PDBsum; 4V74; -.
DR PDBsum; 4V75; -.
DR PDBsum; 4V76; -.
DR PDBsum; 4V77; -.
DR PDBsum; 4V78; -.
DR PDBsum; 4V79; -.
DR PDBsum; 4V7A; -.
DR PDBsum; 4V7B; -.
DR PDBsum; 4V7C; -.
DR PDBsum; 4V7D; -.
DR PDBsum; 4V7I; -.
DR PDBsum; 4V7S; -.
DR PDBsum; 4V7T; -.
DR PDBsum; 4V7U; -.
DR PDBsum; 4V7V; -.
DR PDBsum; 4V85; -.
DR PDBsum; 4V89; -.
DR PDBsum; 4V9C; -.
DR PDBsum; 4V9D; -.
DR PDBsum; 4V9O; -.
DR PDBsum; 4V9P; -.
DR PDBsum; 4WF1; -.
DR PDBsum; 4WOI; -.
DR PDBsum; 4WWW; -.
DR PDBsum; 4YBB; -.
DR PDBsum; 5AFI; -.
DR PDBsum; 5H5U; -.
DR PDBsum; 5IQR; -.
DR PDBsum; 5J5B; -.
DR PDBsum; 5J7L; -.
DR PDBsum; 5J88; -.
DR PDBsum; 5J8A; -.
DR PDBsum; 5J91; -.
DR PDBsum; 5JC9; -.
DR PDBsum; 5JTE; -.
DR PDBsum; 5JU8; -.
DR PDBsum; 5KCR; -.
DR PDBsum; 5KCS; -.
DR PDBsum; 5KPS; -.
DR PDBsum; 5KPV; -.
DR PDBsum; 5KPW; -.
DR PDBsum; 5KPX; -.
DR PDBsum; 5L3P; -.
DR PDBsum; 5LZA; -.
DR PDBsum; 5LZB; -.
DR PDBsum; 5LZC; -.
DR PDBsum; 5LZD; -.
DR PDBsum; 5LZE; -.
DR PDBsum; 5LZF; -.
DR PDBsum; 5MDV; -.
DR PDBsum; 5MDW; -.
DR PDBsum; 5MDY; -.
DR PDBsum; 5MDZ; -.
DR PDBsum; 5ME0; -.
DR PDBsum; 5ME1; -.
DR PDBsum; 5MGP; -.
DR PDBsum; 5MY1; -.
DR PDBsum; 5NP6; -.
DR PDBsum; 5NWY; -.
DR PDBsum; 5O2R; -.
DR PDBsum; 5U4I; -.
DR PDBsum; 5U9F; -.
DR PDBsum; 5U9G; -.
DR PDBsum; 5UYK; -.
DR PDBsum; 5UYL; -.
DR PDBsum; 5UYM; -.
DR PDBsum; 5UYN; -.
DR PDBsum; 5UYP; -.
DR PDBsum; 5UYQ; -.
DR PDBsum; 5WDT; -.
DR PDBsum; 5WE4; -.
DR PDBsum; 5WE6; -.
DR PDBsum; 5WFK; -.
DR PDBsum; 6BU8; -.
DR PDBsum; 6C4I; -.
DR PDBsum; 6DNC; -.
DR PDBsum; 6ENF; -.
DR PDBsum; 6ENJ; -.
DR PDBsum; 6ENU; -.
DR PDBsum; 6GWT; -.
DR PDBsum; 6GXM; -.
DR PDBsum; 6GXN; -.
DR PDBsum; 6GXO; -.
DR PDBsum; 6GXP; -.
DR PDBsum; 6H4N; -.
DR PDBsum; 6H58; -.
DR PDBsum; 6HRM; -.
DR PDBsum; 6I7V; -.
DR PDBsum; 6O9J; -.
DR PDBsum; 6O9K; -.
DR PDBsum; 6OFX; -.
DR PDBsum; 6OG7; -.
DR PDBsum; 6ORE; -.
DR PDBsum; 6ORL; -.
DR PDBsum; 6OST; -.
DR PDBsum; 6OT3; -.
DR PDBsum; 6OUO; -.
DR PDBsum; 6Q97; -.
DR PDBsum; 6Q98; -.
DR PDBsum; 6Q9A; -.
DR PDBsum; 6SZS; -.
DR PDBsum; 6TBV; -.
DR PDBsum; 6TC3; -.
DR PDBsum; 6VWL; -.
DR PDBsum; 6VWM; -.
DR PDBsum; 6VWN; -.
DR PDBsum; 6WD6; -.
DR PDBsum; 6WDB; -.
DR PDBsum; 6WDC; -.
DR PDBsum; 6WDD; -.
DR PDBsum; 6WDE; -.
DR PDBsum; 6WDF; -.
DR PDBsum; 6WDG; -.
DR PDBsum; 6WDH; -.
DR PDBsum; 6WDI; -.
DR PDBsum; 6WDJ; -.
DR PDBsum; 6WDK; -.
DR PDBsum; 6WDL; -.
DR PDBsum; 6WDM; -.
DR PDBsum; 6WNV; -.
DR PDBsum; 6WNW; -.
DR PDBsum; 6XE0; -.
DR PDBsum; 6XZA; -.
DR PDBsum; 6XZB; -.
DR PDBsum; 6Y69; -.
DR PDBsum; 6ZTL; -.
DR PDBsum; 7ABZ; -.
DR PDBsum; 7AC7; -.
DR PDBsum; 7ACJ; -.
DR PDBsum; 7ACR; -.
DR PDBsum; 7AFO; -.
DR PDBsum; 7B5K; -.
DR PDBsum; 7BOD; -.
DR PDBsum; 7BOE; -.
DR PDBsum; 7BOI; -.
DR PDBsum; 7D6Z; -.
DR PDBsum; 7D80; -.
DR PDBsum; 7JSS; -.
DR PDBsum; 7JSW; -.
DR PDBsum; 7JSZ; -.
DR PDBsum; 7JT1; -.
DR PDBsum; 7JT2; -.
DR PDBsum; 7JT3; -.
DR PDBsum; 7K50; -.
DR PDBsum; 7K51; -.
DR PDBsum; 7K52; -.
DR PDBsum; 7K53; -.
DR PDBsum; 7K54; -.
DR PDBsum; 7K55; -.
DR PDBsum; 7LV0; -.
DR PDBsum; 7N1P; -.
DR PDBsum; 7N2C; -.
DR PDBsum; 7N2U; -.
DR PDBsum; 7N2V; -.
DR PDBsum; 7N30; -.
DR PDBsum; 7N31; -.
DR PDBsum; 7NAR; -.
DR PDBsum; 7NAS; -.
DR PDBsum; 7NAT; -.
DR PDBsum; 7NBU; -.
DR PDBsum; 7O19; -.
DR PDBsum; 7O1A; -.
DR PDBsum; 7O1C; -.
DR PDBsum; 7O5H; -.
DR PDBsum; 7OE1; -.
DR PDBsum; 7OIZ; -.
DR PDBsum; 7OJ0; -.
DR PDBsum; 7P3K; -.
DR PDBsum; 7PJV; -.
DR PDBsum; 7PJY; -.
DR PDBsum; 7SS9; -.
DR PDBsum; 7SSD; -.
DR PDBsum; 7SSL; -.
DR PDBsum; 7SSN; -.
DR PDBsum; 7SSO; -.
DR PDBsum; 7SSW; -.
DR PDBsum; 7ST2; -.
DR PDBsum; 7ST6; -.
DR PDBsum; 7ST7; -.
DR AlphaFoldDB; P68679; -.
DR SMR; P68679; -.
DR BioGRID; 851893; 1.
DR ComplexPortal; CPX-3802; 30S small ribosomal subunit.
DR DIP; DIP-47839N; -.
DR IntAct; P68679; 41.
DR STRING; 511145.b3065; -.
DR jPOST; P68679; -.
DR PaxDb; P68679; -.
DR PRIDE; P68679; -.
DR EnsemblBacteria; AAC76101; AAC76101; b3065.
DR EnsemblBacteria; BAE77116; BAE77116; BAE77116.
DR GeneID; 947577; -.
DR GeneID; 9732014; -.
DR KEGG; ecj:JW3037; -.
DR KEGG; eco:b3065; -.
DR PATRIC; fig|1411691.4.peg.3665; -.
DR EchoBASE; EB0913; -.
DR eggNOG; COG0828; Bacteria.
DR HOGENOM; CLU_159258_1_0_6; -.
DR InParanoid; P68679; -.
DR OMA; FKRSCQK; -.
DR PhylomeDB; P68679; -.
DR BioCyc; EcoCyc:EG10920-MON; -.
DR BioCyc; MetaCyc:EG10920-MON; -.
DR EvolutionaryTrace; P68679; -.
DR PRO; PR:P68679; -.
DR Proteomes; UP000000318; Chromosome.
DR Proteomes; UP000000625; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IDA:ComplexPortal.
DR GO; GO:0005829; C:cytosol; IDA:EcoCyc.
DR GO; GO:0022627; C:cytosolic small ribosomal subunit; IDA:CAFA.
DR GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-KW.
DR GO; GO:0003735; F:structural constituent of ribosome; IDA:CAFA.
DR GO; GO:0002181; P:cytoplasmic translation; IC:ComplexPortal.
DR GO; GO:0000028; P:ribosomal small subunit assembly; IDA:CAFA.
DR Gene3D; 1.20.5.1150; -; 1.
DR HAMAP; MF_00358; Ribosomal_S21; 1.
DR InterPro; IPR001911; Ribosomal_S21.
DR InterPro; IPR018278; Ribosomal_S21_CS.
DR InterPro; IPR038380; S21_sf.
DR PANTHER; PTHR21109; PTHR21109; 1.
DR Pfam; PF01165; Ribosomal_S21; 1.
DR PRINTS; PR00976; RIBOSOMALS21.
DR TIGRFAMs; TIGR00030; S21p; 1.
DR PROSITE; PS01181; RIBOSOMAL_S21; 1.
PE 1: Evidence at protein level;
KW 3D-structure; Direct protein sequencing; Reference proteome;
KW Ribonucleoprotein; Ribosomal protein; RNA-binding; rRNA-binding.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000269|PubMed:765257"
FT CHAIN 2..71
FT /note="30S ribosomal protein S21"
FT /id="PRO_0000178332"
FT REGION 43..71
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 49..63
FT /note="Basic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT HELIX 13..16
FT /evidence="ECO:0007829|PDB:7BOD"
FT HELIX 19..25
FT /evidence="ECO:0007829|PDB:7BOD"
FT HELIX 28..34
FT /evidence="ECO:0007829|PDB:7BOD"
FT STRAND 36..38
FT /evidence="ECO:0007829|PDB:7O5H"
FT HELIX 41..57
FT /evidence="ECO:0007829|PDB:7BOD"
FT TURN 58..60
FT /evidence="ECO:0007829|PDB:7BOD"
SQ SEQUENCE 71 AA; 8500 MW; B2E8A18BFBB2F685 CRC64;
MPVIKVRENE PFDVALRRFK RSCEKAGVLA EVRRREFYEK PTTERKRAKA SAVKRHAKKL
ARENARRTRL Y
