When was this clue last seen?

This clue last appeared in the NYT Crossword on Sunday, 22 February 2026.

Protein-building acid, informally

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Keywords

informallybuildingprotein

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This clue appeared in the NYT Crossword on Sunday, 22 February 2026. The answer AMINO is a 5-letter entry.

This answer appears frequently in crosswords. View AMINO answer history →

What is the answer to "Protein-building acid, informally"?: AMINO
How many letters is the answer to "Protein-building acid, informally"?: The answer has 5 letters.
When was this clue last seen?: This clue last appeared in the NYT Crossword crossword on Sunday, 22 February 2026.
Has this crossword clue appeared before?: Yes. Variations of this clue have appeared 11 other times.

Looking for a 5-letter word for “Protein-building acid, informally”?

Other puzzles where this answer appeared

Showing 6 of 11

Kind of acid
NYT Crossword · Friday, 02 January 2026 · 45 Down
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AMINO
Kind of acid
NYT Crossword · Friday, 06 February 2026 · 10 Down
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AMINO
___ acid (protein builder)
NYT Mini · Friday, 19 September 2025 · 7 Across
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AMINO
Kind of acid in proteins
NYT Mini · Friday, 29 November 2024 · 8 Across
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AMINO
___ acid
NYT Mini · Tuesday, 15 April 2025 · 6 Across
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AMINO
___ acids
NYT Mini · Wednesday, 04 December 2024 · 7 Across
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AMINO