Where are ATPase enzymes located in a muscle | vedclass

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(B) The myosin filament is a polymerized protein consisting of many monomeric proteins called meromyosins. Each meromyosin has two parts: a globular h

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$HMM$ (Heavy Meromyosin)

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(B) The myosin filament is a polymerized protein consisting of many monomeric proteins called meromyosins. Each meromyosin has two parts: a globular head with a short arm and a tail. The globular head is an active ATPase enzyme and has binding sites for $ATP$ and active sites for actin. This head and short arm are collectively known as Heavy Meromyosin $(HMM)$,while the tail portion is known as Light Meromyosin $(LMM)$. Therefore,the $ATPase$ enzyme activity is located in the $HMM$ part of the myosin molecule.

Where are $ATPase$ enzymes located in a muscle fiber?

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