Proteopedia:Featured article archives
From Proteopedia
The following articles have been featured on Proteopedia's Main Page. The most recent is first in the list below, followed by the older ones.
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Featured from December 15, 2008 - May 2, 2009: (The Main Page was completely redesigned starting December 15, 2008.)
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Green links change the 3D image!
2q66 - Poly(A) polymerase
Poly(A) polymerase binds specifically to ATP and adds it the end of a mRNA chain. This structure contains an oligo(A) polynucleotide with 5 nucleotides, an ATP molecule, and a magnesium ion. … In the , the enzyme is shown as a blue backbone, the RNA chain in yellow, the ATP in red, the Mg++ in green, and ALA154 in magenta. Several mechanisms are used to achieve the specificity for ATP. The Mg++ is coordinated by , and the Mg++ coordinates with the phosphates of ATP, positioning the nucleotide in the active site. The adenine base is sandwiched between the . Read more... |
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(End of archived feature articles)
