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Aminoacyl tRNA SynthetaseSomanna A. N.
Fig: 2 steps of aminoacyl tRNA charging. (a) Adenylylation of amino acid             (b) Transfer of adenylylated amino ac...
tRNA charging
Classes of Aminoacyl tRNA Synthetases
Structure of tRNA: Elements required for aminoacyl               synthetase recognition
Co-crystal structure of glutaminyl aminoacyl tRNA synthetase                          with tRNA-GluEnzyme is shown in grey...
Accuracy of Aminoacyl tRNA formation      Distinguishing features of similar amino acid
Proofreading
Editing of Aminoacyl-tRNA.The flexible arm of an aminoacyl-tRNA can move the amino acid between the activationsite and the...
Cysteinyl tRNA charged with Cysteine or Alanine
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Aminoacyl tRNA synthetase

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Transcript of "Aminoacyl tRNA synthetase"

  1. 1. Aminoacyl tRNA SynthetaseSomanna A. N.
  2. 2. Fig: 2 steps of aminoacyl tRNA charging. (a) Adenylylation of amino acid (b) Transfer of adenylylated amino acid to tRNA
  3. 3. tRNA charging
  4. 4. Classes of Aminoacyl tRNA Synthetases
  5. 5. Structure of tRNA: Elements required for aminoacyl synthetase recognition
  6. 6. Co-crystal structure of glutaminyl aminoacyl tRNA synthetase with tRNA-GluEnzyme is shown in grey and tRNA in purple. The yellow, red and green is Glutaminyl AMP
  7. 7. Accuracy of Aminoacyl tRNA formation Distinguishing features of similar amino acid
  8. 8. Proofreading
  9. 9. Editing of Aminoacyl-tRNA.The flexible arm of an aminoacyl-tRNA can move the amino acid between the activationsite and the editing site. If the amino acid fits well into the editing site, the amino acid isremoved by hydrolysis.
  10. 10. Cysteinyl tRNA charged with Cysteine or Alanine
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