Home/Actin (thin filament)

Molecule

1 pathway

Actin (thin filament)

Found in 1 curated pathway across 1 category.

Interaction Network

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Active In Categories

Frequently Co-occurring Molecules

Myosin II (thick filament)×1 Tropomyosin×1 Troponin (TnC, TnI, TnT)×1 Ca²⁺×1 ATP×1 Titin×1 DHPR×1 RyR1×1

Frequently Co-occurring Enzymes

Myosin ATPase×1 SERCA (Ca²⁺-ATPase)×1 Creatine kinase×1 MLCK (smooth muscle)×1

Cross-Referenced Pathways

1 direct · 3 cross-referenced · 4 shown

Direct Involvement

1

Muscle & Cytoskeleton

Muscle Contraction (Excitation-Contraction Coupling)

Calcium-dependent actin-myosin sliding mechanism generating muscle force.

Actin (thin filament)Myosin II (thick filament)Tropomyosin+6

Cross-Referenced

3

— connected via related pathways

Signal Transduction

Calcium Signaling

Ca²⁺ as a universal second messenger controlling diverse cellular processes.

Ca²⁺CalmodulinIP3+4

Membrane Transport

Ion Channel Signaling

Selective ion flux through membrane channels driving electrical and chemical signals.

Na⁺K⁺Ca²⁺+5

Synaptic Transmission

Chemical neurotransmission across synaptic clefts between neurons.

GlutamateGABAAcetylcholine+6