| Basic constituents of proteins (5,5) |
The Sun Mini |
20 Sep 2026 |
| Biological building blocks |
New York Times |
20 Mar 2026 |
| "Essential" nutrients: 2 wds. |
Commuter |
11 Nov 2025 |
| Molecules that combine to form proteins |
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| Tryptophan and glycine, e.g. |
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| Essential organic compounds (5,5) |
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| Our bodies need 20+ different kinds to function |
New York Times |
21 Sep 2023 |
| Protein building blocks |
LA Times Daily |
22 Sep 2015 |
| Protein building blocks |
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| Tryptophan and kin |
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| Protein building blocks |
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| Arginine and tryptophan, for two |
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| Arginine and tryptophan |
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| Protein components |
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| Lysine and tryptophan |
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