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Why do basic amino acids absorb basic dyes? Shouldn't they absorb acidic dyes?
Basic amino acids are positively charged, while acidic amino acids are negatively charged...so wouldn't basic amino acids attract negatively charged dyes, which are acidic?
My textbook :( "Chromatin received its name because it absorbs basic dyes due to the large basic amino acid content in histones. The basicity of histones give them a net charge at the normal pH of the cell." I'm very confused by this...
2 Answers
- RolandLv 79 years agoFavorite Answer
Basic amino acids DO absorb acidic dyes!!
Who told you otherwise?
Maybe you misinterpreted.
- ?Lv 44 years ago
The sensible value may be placed on the amino end and the detrimental value may be on the carboxy end. The term for that's called a Zwitterion. There additionally are 4 residues that ought to undergo a cost. Glutamate (Glu, E) and Aspartate (Asp, D) will the two be negatively charged below residing circumstances. Arginine (Arg, R) and Lysine (Lys, ok) will the two be relatively charged. the traditional formula may be H3N+--CHR--COO- The R stands for a definite amino acid residue, of which there are 20.
