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Related Clues:
- Kind of acid found in protein
- Part of a chemistry group
- Nitrogen/hydrogen radical
- Kind of acid in protein
- Kind of acid synthesized to produce aspartame
- Protein building block, for short
- __ acids (protein building block)
- Protein acid, for short
- Another 46-Across
- Alpha-___ acid
- ___ acid (protein component)
- Modeling aid
- Glue resin
- Acid head?
- Protein acid, informally