( ( A ( tyrosine kinase ) ) ( ( puts ( phosphate ( on ( the ( amino ( acid tyrosine ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (JJ tyrosine) (NN kinase)) (VP (VBZ puts) (ADJP (JJ phosphate) (PP (IN on) (NP (DT the) (JJ amino) (NN acid) (NN tyrosine))))) (. .)))
A tyrosine kinase puts phosphate on the amino acid tyrosine.
(ROOT (S (NP (NNS Catecholamines)) (VP (VBP are) (NP (NP (DT a) (NN class)) (PP (IN of) (NP (JJ amine) (NNS hormones))) (SBAR (WHNP (WHNP (DT that)) (NP (WRB when) (JJ synthesised))) (S (VP (VBP form) (NP (DT the) (JJ amino) (NN acid) (NN tyrosine))))))) (. .)))