/ˈæktɪn/
OriginFrom Ancient Greek ἀκτίς (aktís, “ray”), based on the shape of the filament formed, + -in.
- uncountableA globular structural protein that polymerizes in a helical fashion to form an actin filament (or microfilament).
“2012, Elaine N. Marieb & Katja Hoehn, Human Anatomy & Physiology, 8th ed., chapter 9 "Muscles and Muscle Tissue", page 281.
Actin has kidney-shaped polypeptide subunits, called globular actin or G act”
- countableOne of the six isoforms of actin.
Formsactins(plural)