( ( Recent evidence ) ( ( ( reveals ( ( a group ) ( of genes ) ) ) ( that ( ( code ( for ( ( specific ( receptor proteins ) ) ( -LRB- ( ( ( 7 unit ) ( transmembrane proteins ) ) -RRB- ) ) ) ) ) ( associated ( with ( the receptors ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Recent) (NN evidence)) (VP (VBZ reveals) (NP (NP (DT a) (NN group)) (PP (IN of) (NP (NNS genes)))) (SBAR (IN that) (S (NP (NP (NN code)) (PP (IN for) (NP (NP (JJ specific) (NN receptor) (NNS proteins)) (PRN (-LRB- -LRB-) (NP (NP (CD 7) (NN unit)) (NP (JJ transmembrane) (NNS proteins))) (-RRB- -RRB-))))) (VP (VBN associated) (PP (IN with) (NP (DT the) (NNS receptors))))))) (. .)))
Recent evidence reveals a group of genes that code for specific receptor proteins (7 unit transmembrane proteins) associated with the receptors.
(ROOT (S (NP (NP (NNS Genes)) (, ,) (CC or) (NP (NP (JJ functional) (NNS units)) (PP (IN of) (NP (NNS chromosomes)))) (, ,)) (VP (VBP determine) (NP (JJ specific) (NNS characteristics)) (PP (IN by) (S (VP (VBG coding) (PP (IN for) (NP (JJ specific) (NNS proteins))))))) (. .)))