( ( Properties ( of ( the ( muscle-cell cytoskeleton ) ) ) ) ; )
(ROOT (NP (NP (NNP Properties)) (PP (IN of) (NP (DT the) (JJ muscle-cell) (NN cytoskeleton))) (: ;)))
Properties of the muscle-cell cytoskeleton;
(ROOT (S (NP (NP (JJ Muscle) (NN type)) (PP (IN of) (NP (NN cell) (NN function)))) (VP (VBZ relies) (PP (IN on) (NP (NP (NNS microfilaments)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (NP (NP (DT the) (NN actin) (NNS components)) (PP (IN of) (NP (DT the) (NN cytoskeleton)))))))))) (. .)))
Muscle type of cell function relies on microfilaments, which are the actin components of the cytoskeleton.