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The study of chemistry within the scope of biology: the compounds that occur and the reactions involving them in living organisms.

4 votes
1 answer
2k views

How does beta branching stop alpha helices from forming?

I am told that beta branching interferes with alpha helix formation. Problem is that I don't see how beta branching has anything to do with alpha-helix formation. Beta-branches are on the outside of …
Dissenter's user avatar
  • 499
4 votes
1 answer
4k views

D/L configuration for amino acids

Why would this be "L-cysteine"? This is taken from the answer key for my biochem final. From what I understand if the -NH3(+) is on the left then the alpha-amino acid is in the L-configuration. …
Dissenter's user avatar
  • 499
1 vote
1 answer
42 views

Primers on Dystonia

Where can I get a good biochemical overview of dystonia? I will be working in a research lab that focuses on dystonia and I would like to not be clueless.
Dissenter's user avatar
  • 499
5 votes
1 answer
6k views

Anomalous base pairing of nucleotide tautomers

What tautomers base pair with what bases? I know that adenine pairs with thymine and guanine pairs with cytosine normally. My question is what does the imino form of adenine base pair with? Regular …
Dissenter's user avatar
  • 499