( ( Because ( proteins ( share ( ( a ( common ( structural feature ) ) ) ( known ( as ( the ( polypeptide backbone ) ) ) ) ) ) ) ) ( , ( ( all proteins ) ( ( have ( the ( potential ( to ( misfold ( under ( some circumstances ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Because) (S (NP (NNS proteins)) (VP (VBP share) (NP (NP (DT a) (JJ common) (JJ structural) (NN feature)) (VP (VBN known) (PP (IN as) (NP (DT the) (JJ polypeptide) (NN backbone)))))))) (, ,) (NP (DT all) (NNS proteins)) (VP (VBP have) (NP (DT the) (NN potential) (S (VP (TO to) (VP (VB misfold) (PP (IN under) (NP (DT some) (NNS circumstances)))))))) (. .)))
Because proteins share a common structural feature known as the polypeptide backbone, all proteins have the potential to misfold under some circumstances.
(ROOT (S (NP (NP (CD One)) (PP (IN of) (NP (NP (DT the) (JJ main) (NNS features)) (SBAR (S (NP (DT all) (NNS vetebrates)) (VP (VBP have) (VP (PP (IN in) (NP (JJ common)))))))))) (VP (VBZ is) (NP (DT a) (NN backbone))) (. .)))