( ( ( The possibilities ) ( that ( ( `` ( molecular ( mimicry '' ) ) ) ( may ( induce autoimmunity ) ) ) ) ) ( ( ( are greatly ) ( increased ( if ( ( short ( homologous sequences ) ) ( are ( sufficient ( to ( stimulate ( cross-reactive ( T ( cell clones ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNS possibilities)) (SBAR (IN that) (S (NP (`` ``) (JJ molecular) (NN mimicry) ('' '')) (VP (MD may) (VP (VB induce) (ADVP (RB autoimmunity))))))) (VP (VBP are) (ADVP (RB greatly)) (VP (VBN increased) (SBAR (IN if) (S (NP (JJ short) (NN homologous) (NNS sequences)) (VP (VBP are) (ADJP (JJ sufficient) (S (VP (TO to) (VP (VB stimulate) (NP (JJ cross-reactive) (NNP T) (NN cell) (NNS clones))))))))))) (. .)))
The possibilities that &quot;molecular mimicry&quot; may induce autoimmunity are greatly increased if short homologous sequences are sufficient to stimulate cross-reactive T cell clones.
(ROOT (S (S (NP (NNP Autoimmunity)) (VP (MD can) (VP (VB develop) (PP (IN with) (NP (NN time)))))) (, ,) (CC and) (S (NP (PRP$ its) (NNS causes)) (VP (MD may) (VP (VB be) (VP (VBN rooted) (PP (IN in) (NP (DT this) (JJ molecular) (NN mimicry))))))) (. .)))