actin-

¹

1. variant of actino- before a vowel.

   actinism.

actin

²

[ak-tuhn]

noun

Biochemistry.

1. a globulin that is present in muscle plasma and that in connection with myosin plays an important role in muscle contraction.

actin

/ ˈæktɪn /

noun

1. a protein that participates in many kinds of cell movement, including muscle contraction, during which it interacts with filaments of a second protein, myosin

actin

1. A protein found in all eukaryotic cells, forming filaments that make up a main component of the cell's supporting matrix or cytoskeleton. Actin and the protein myosin together make up the contractile units (called sarcomeres) of skeletal muscle fibers.

Word History and Origins

Origin of actin-¹

1940–45; perhaps act + -in ²

Word History and Origins

Origin of actin-¹

C20: from _act + _-in

Example Sentences

DIAPH1 helps form actin filaments, which are part of the cell's internal structure.

Read more on Science Daily

This structure is a dynamic network of actin fibers that affects how stiff or tall the cells become.

Read more on Science Daily

Actin achieves this by assembling into filaments, one actin molecule at a time.

Read more on Science Daily

Ultimately, they found that when the DRD2 pathway was activated, the host's ability to produce an actin regulatory protein was compromised.

Read more on Science Daily

Yet, a research team led by Kyoto University have previously observed that the actin network constantly moves over FAs as a single unit: a unique phenomenon contradicting prevailing notions.

Read more on Science Daily