( ( Cellulose synthase ) ( ( appears ( to ( have ( evolved ( a ( mechanism ( ( ( ( to simultaneously ) ( bind ( ( ( at least ) three ) UDP-glucoses ) ) ) and ) ( to ( ( ( polymerize , ) ( by ( ( ( double addition ) , ) ( ( two UDP-glucoses ) ( in ( such ( a manner ) ) ) ) ) ) ) ( that ( ( the ( 2-fold screw ) ) ( axis ( of ( ( the & ) szlig ) ) ) ) ) ) ) ) ) ) ) ) ) ) ; ) )
(ROOT (S (NP (JJ Cellulose) (NN synthase)) (VP (VBZ appears) (S (VP (TO to) (VP (VB have) (VP (VBN evolved) (NP (DT a) (NN mechanism) (S (VP (VP (TO to) (ADVP (RB simultaneously)) (VP (VB bind) (NP (QP (IN at) (JJS least) (CD three)) (NNS UDP-glucoses)))) (CC and) (VP (TO to) (VP (VB polymerize) (, ,) (PP (IN by) (NP (NP (JJ double) (NN addition)) (, ,) (NP (NP (CD two) (NNS UDP-glucoses)) (PP (IN in) (NP (PDT such) (DT a) (NN manner)))))) (SBAR (IN that) (S (NP (DT the) (JJ 2-fold) (NN screw)) (VP (VBZ axis) (PP (IN of) (NP (NP (DT the)) (CC &) (NP (NN szlig))))))))))))))))) (: ;)))
Cellulose synthase appears to have evolved a mechanism to simultaneously bind at least three UDP-glucoses and to polymerize, by double addition, two UDP-glucoses in such a manner that the 2-fold screw axis of the &szlig;
(ROOT (S (NP (NNP Cellulose)) (VP (VBZ is) (VP (VBN created) (PP (IN by) (NP (NP (DT the) (NN polymerization)) (PP (IN of) (NP (NN glucose))))))) (. .)))