Crystal structures of complexes of the small ribosomal subunit with tetracycline, edeine and IF3.

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Pioletti M, Schlunzen F, Harms J, Zarivach R, Gluhmann M, Avila H, Bashan A, Bartels H, Auerbach T, Jacobi C, Hartsch T, Yonath A, Franceschi F

Crystal structures of complexes of the small ribosomal subunit with tetracycline, edeine and IF3.

EMBO J. 2001 Apr 17;20(8):1829-39.

PubMed ID
11296217 [ View in PubMed
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Abstract

The small ribosomal subunit is responsible for the decoding of genetic information and plays a key role in the initiation of protein synthesis. We analyzed by X-ray crystallography the structures of three different complexes of the small ribosomal subunit of Thermus thermophilus with the A-site inhibitor tetracycline, the universal initiation inhibitor edeine and the C-terminal domain of the translation initiation factor IF3. The crystal structure analysis of the complex with tetracycline revealed the functionally important site responsible for the blockage of the A-site. Five additional tetracycline sites resolve most of the controversial biochemical data on the location of tetracycline. The interaction of edeine with the small subunit indicates its role in inhibiting initiation and shows its involvement with P-site tRNA. The location of the C-terminal domain of IF3, at the solvent side of the platform, sheds light on the formation of the initiation complex, and implies that the anti-association activity of IF3 is due to its influence on the conformational dynamics of the small ribosomal subunit.

DrugBank Data that Cites this Article

Polypeptides
NameUniProt ID
30S ribosomal protein S10Q5SHN7Details
30S ribosomal protein S12Q5SHN3Details
30S ribosomal protein S11P80376Details
30S ribosomal protein S13P80377Details
30S ribosomal protein S15Q5SJ76Details
30S ribosomal protein S16Q5SJH3Details
30S ribosomal protein S18Q5SLQ0Details
30S ribosomal protein S19Q5SHP2Details
30S ribosomal protein S20P80380Details
30S ribosomal protein S4P80373Details
30S ribosomal protein S5Q5SHQ5Details
30S ribosomal protein S6Q5SLP8Details
30S ribosomal protein S7P17291Details
30S ribosomal protein S9P80374Details
30S ribosomal protein ThxQ5SIH3Details
30S ribosomal protein S2P62662Details
30S ribosomal protein S3P62663Details
30S ribosomal protein S9P62669Details
30S ribosomal protein S2P80371Details
30S ribosomal protein S3P80372Details
30S ribosomal protein S14 type ZP0DOY6Details
30S ribosomal protein S17P0DOY7Details
30S ribosomal protein S8P0DOY9Details