Howdy,
I have two nonstandard amino acids in my peptide sequence; norarginine and diaminobutyric acid. When I enter my sequence into ccpnmr and try to add dab, it says that it isn't found locally. How do I get around this? Also, is there a way for me to create norarginine? I have just used arginine and lysine for my assignments, respectively, seeming as the two nonstandards are derivatives of those. Any insight would be great.
Thanks,
Alisha
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