actin

名词 n.
中文释义

英文释义

名词 n.
  1. A globular structural protein that polymerizes in a helical fashion to form an actin filament (or microfilament). uncountable
    — 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 actin, which bear the active sites to which the myosin heads attach during contraction.
  2. One of the six isoforms of actin. countable

词形变化

actins plural

词汇关系

衍生词
actinic actinin actinofibril actinome actinopathy actomyosin antiactin fibroactin isoactin
相关词
conductin myosin

词源

From Ancient Greek ἀκτίς (aktís, “ray”), based on the shape of the filament formed, + -in.
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