Dystrophin (linked to certain muscular dystrophies) is im...

Dystrophin (linked to certain muscular dystrophies) is important mainly because it:

hard

ACarries oxygen in muscle cytoplasm

Links the muscle cell cytoskeleton to the membrane/extracellular matrix, helping protect fibers from damage during contraction

CIs the neurotransmitter released at the neuromuscular junction

DIs the enzyme that breaks down acetylcholine

EIs the Ca2+ pump of the sarcoplasmic reticulum

Explanation

Dystrophin is a structural support protein. Without it, the muscle membrane is more easily damaged during contractions, contributing to progressive weakness.

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Back to Deck — Muscle Contraction, Muscle Tissue & Tendons

Source: entermedschool.org

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