Muscle protein
The crossword clue "Muscle protein" is answered by ACTIN, a 5-letter entry. Used 19 times across 15 distinct years; most recently in 2025. It appears in 7 publications in the xd corpus. Every figure on this page comes from the collection data itself, never from a guess.
The answer
ACTIN
5 letters. See every clue for this answer on the ACTIN answer page.
Used 19 times across 15 distinct years; most recently in 2025. It appears in 7 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other answers for this clue
The same clue has also been answered these ways in the xd corpus. Answers inside this collection link to their own answer page.
- MYOSIN (3 uses in xd)
Other clues for ACTIN
Every other clue in this collection answered by ACTIN, most used first.
- Be a cast member of - used 29 times, most recently in 2026
- Join the cast of - used 28 times, most recently in 2026
- Be part of the cast of - used 16 times, most recently in 2026
- Be part of, as a play - used 12 times, most recently in 2026
Related clues
Clues in this collection of the same answer length that share a word with this clue, or match its answer pattern when no word is shared. Most used first.
- Muscle twitch - SPASM, used 45 times
- Protein-building acid - AMINO, used 32 times
- ___ acid (protein component) - AMINO, used 29 times
- Muscle contraction - SPASM, used 28 times
- Muscle - SINEW, used 22 times
- Protein acid - AMINO, used 21 times
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