Absorption ratios 260/280 and 260/230 for RNA For the sake of completeness and relevant detail: The aromatic amino acids (Phe, Trp and Tyr) are the primary contributors to the ability of proteins to absorb at 280nm. Cysteine double bonds can also absorb but its both rare and the extinction coefficient is smaller in comparison to the aromatic residues.
Aug 4
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What is itching? I have seen two answers posted and then "disappear" after a couple of days.. Can someone tell me whats happening or was I dreaming? :-)
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