( ( ( ( ( Elastic filaments ) - ) ( composed ( of ( hundreds ( of ( molecules ( of ( the ( protein titin ) ) ) ) ) ) ) ) ) - ) ( ( ( anchors ( thick filaments ) ) ( to ( ( the ( Z disc ) ) ( of ( the ( sarcomere 5 ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Elastic) (NNS filaments)) (: -) (VP (VBN composed) (PP (IN of) (NP (NP (NNS hundreds)) (PP (IN of) (NP (NP (NNS molecules)) (PP (IN of) (NP (DT the) (NN protein) (NN titin)))))))) (: -)) (VP (VBD anchors) (NP (JJ thick) (NNS filaments)) (PP (TO to) (NP (NP (DT the) (NNP Z) (NN disc)) (PP (IN of) (NP (DT the) (JJ sarcomere) (CD 5)))))) (. .)))
Elastic filaments -composed of hundreds of molecules of the protein titin -anchors thick filaments to the Z disc of the sarcomere 5.
(ROOT (S (NP (DT The) (ADJP (JJS largest) (VBN known)) (NNS proteins)) (VP (VBP are) (ADJP (JJ titins))) (. .)))