Intelligent Design, the best explanation of Origins

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Intelligent Design, the best explanation of Origins » Molecular biology of the cell » aminoacyl-tRNA synthetases.

aminoacyl-tRNA synthetases.

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1 aminoacyl-tRNA synthetases. on Thu Jan 21, 2016 4:11 pm

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aminoacyl-tRNA synthetases.

The synthetases have several active sites that enable them to:

(1) recognize a specific amino acid,
(2) recognize a specific corresponding tRNA(with a specific anticodon),
(3) react the amino acid with ATP (adenosine triphosphate) to form an AMP (adenosine monophosphate) derivative, and then, finally,
(4) link the specific tRNA molecule in question to its corresponding amino acid. Current research suggests that the synthetases recognize particular three-dimensional or chemical features (such as methylated bases) of the tRNA molecule. In virtue of the specificity of the features they must recognize, individual synthetases have highly distinctive shapes that
derive from specifically arranged amino-acid sequences. In other words, the synthetases are themselves marvels of specificity.37

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