Crystal structure of the Thermus thermophilus (HB8) 30S ribosomal subunit with codon, near-cognate transfer RNA anticodon stem-loop mismatched at the first codon position and streptomycin bound

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A structural basis for streptomycin-induced misreading of the genetic code.

(2013) Nat Commun 4

PubMed: 23322043 | PubMedCentral: PMC3552334 | DOI: 10.1038/ncomms2346

Figure 4 Conformational flexibility in the 30S decoding site a. Comparison of decoding interactions for near-cognate ASL GAG Leu 2 (data set Leu, PDB accession code 4DR6, colored as before) with cogna... e decoding interactions (PDB accession code 1IBM colored in grey 9 ) b. Data set Leu colored as before compared to PDB accession code 1N32 (30S subunit in complex with near-cognate ASL GAG Leu 2 , mRNA, and paromomycin, colored in grey 13 ).

We generated complexes with streptomycin, hexa-uridine mRNA, and cognate ASL GAA Phe (data set Phe, Protein Data Bank (PDB) accession code 4DR5) or near-cognate ASLs ( ASL GAG Leu 2 , data set Leu, PDB accession code 4DR6, and ASL GGA Ser , data set Ser, PDB accession code 4DR7) by soaking these compounds into 30S subunit crystals.

Accession codes Coordinates and structure factors have been deposited in the Protein Data Base under accession codes 4DR1, 4DR2, 4DR3, 4DR4, 4DR5, 4DR6, and 4DR7 for data sets Apo, Par, Strep, MAP, Sm-ASL GAA Phe -mRNA, Sm-ASL GAG Leu 2 -mRNA, and Sm-ASL GGA Ser -mRNA, respectively.

Publication Year: 2013