Exempel på ribosome

• Concentric-whorled membranes, having a granular appearance resembling the ribosomes of rough endoplasmic reticulum, float in the pseudocoelom between somatic muscles, reproductive tract and intestine.

• Recent progress of structural, biochemical and computational approaches has provided a fairly detailed picture of the catalytic mechanisms employed by the ribosome.

• They also provided the first models of the shape of the ribosome and its subunits based on spherical harmonics.

• Recently, two new methods for rapid time-dependent footprinting have provided new insights into ribosome dynamics.

• The use of fluorescent techniques is adding to our knowledge of ribosome dynamics.

• Except immediately beneath the epidermal scales, ribosomes are not generally found within the outer epidermis.

• Note the presence of numerous mitochondria (m) and ribosomes (r) beneath the scale.

• The tegument is a syncytial stratum, laden with membrane-bound, electron-lucid and electron-dense vesicles, mitochondria, ribosomes and smooth endoplasmic reticulum.

• Compared to the reaction in solution, the ribosome accelerates peptide bond formation y107-fold.

• These findings suggest that general acid-base catalysis by ribosomal residues does not play a significant role in peptidyl transfer on the ribosome.

• When this helix is formed, ribosome binding is blocked, and protein synthesis cannot occur.

• Section 2 contains a brief overview of the structure of the ribosome.

• What are the roles of substrate-assisted catalysis and proximity effects in peptide bond formation by the ribosome?

• Finding known sub-structures in the ribosome helps one interpret the vast biochemical knowledge base available on the ribosome and its components.

• For an asymmetric particle like the ribosome, the asymmetric triangle covers the entire unit sphere.