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. 2020 Feb 17;39(9):e103788. doi: 10.15252/embj.2019103788

Figure EV2. Location of eS21 and molecular model of the T. celer 30S subunit.

Figure EV2

  1. T. celer 30S subunit contains 28 ribosomal proteins, including the large subunit protein eL41.
  2. Close‐up view on eS21 located at the solvent side between uS2, uS5, and uS8. Comparison with other species reveals that the respective position at the ribosome is not occupied in E. coli, but by eS21 in S. cerevisiae.
  3. Sequence alignment of T. celer eS21 and S. cerevisiae eS21a shows low homology, indicating that the two proteins are only weakly related.
  4. Cryo‐EM density for e21 and fit of the de novo model. The protein forms two zinc‐binding pockets, each coordinated by four cysteines.