Cell state · L2
SKM.type_2_fast.oxidative_IIa
6,755 cells in the full atlas (not the displayed sample).
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Marker genes
CD36, FGD4, MYH2
Annotation genes
CD36, MYH2
Annotation rationales
MYH2 specifies IIa contractile kinetics; CD36 supports lipid uptake for mixed fuel use; FGD4 (actin regulator) aids fiber plasticity and junctional remodeling under endurance training.
Functional implications
Balances speed and stamina: provides higher peak force than type I while sustaining repeated efforts (middle-distance running, cycling climbs); flexibly shifts substrate use (glucose↔fatty acids) and resists fatigue via robust mitochondrial content and capillarization.
Marker and functional descriptions are atlas annotations. Explore gene expression, trait associations and regulatory elements in the interactive browsers; see the browser guide.