( ( In ( transmembrane proteins ) ) ( , ( ( ( the regions ) ( of ( ( the chain ) ( that ( span ( the membrane ) ) ) ) ) ) ( ( tend ( to ( be ( strongly hydrophobic ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (JJ transmembrane) (NNS proteins))) (, ,) (NP (NP (DT the) (NNS regions)) (PP (IN of) (NP (NP (DT the) (NN chain)) (SBAR (WHNP (WDT that)) (S (VP (VBP span) (NP (DT the) (NN membrane)))))))) (VP (VBP tend) (S (VP (TO to) (VP (VB be) (ADJP (RB strongly) (JJ hydrophobic)))))) (. .)))
In transmembrane proteins, the regions of the chain that span the membrane tend to be strongly hydrophobic.
(ROOT (S (NP (JJ Transmembrane) (NNS proteins)) (VP (VBP span) (NP (DT the) (JJ entire) (NN plasma) (NN membrane))) (. .)))