( ( One ( of ( these ( new genes ) ) ) ) ( ( was ( ( the gene ) ( coding ( for ( ( ( ( a ( membrane ( associated ( protein channel ) ) ) ) ( -LRB- ( ( the ( gap junction ) ) -RRB- ) ) ) , ) ( which ( ( between ( coupled cells ) ) ( , ( ( allowed ( the ( passive transfer ) ) ) ( on ( ( ions and ) ( small ( molecular ( weight molecules ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (CD One)) (PP (IN of) (NP (DT these) (JJ new) (NNS genes)))) (VP (VBD was) (NP (NP (DT the) (NN gene)) (VP (VBG coding) (PP (IN for) (NP (NP (NP (DT a) (JJ membrane) (VBN associated) (NN protein) (NN channel)) (PRN (-LRB- -LRB-) (NP (DT the) (NN gap) (NN junction)) (-RRB- -RRB-))) (, ,) (SBAR (WHNP (WDT which)) (S (PP (IN between) (NP (JJ coupled) (NNS cells))) (, ,) (VP (VBD allowed) (NP (DT the) (JJ passive) (NN transfer)) (PP (IN on) (NP (NP (NNS ions)) (CC and) (NP (JJ small) (JJ molecular) (NN weight) (NNS molecules)))))))))))) (. .)))
One of these new genes was the gene coding for a membrane associated protein channel (the gap junction), which between coupled cells, allowed the passive transfer on ions and small molecular weight molecules.
(ROOT (S (NP (DT The) (NN term) (JJ passive) (NN transport)) (VP (VBZ describes) (NP (DT a) (NN way)) (SBAR (IN that) (S (NP (JJ small) (NNS molecules) (CC or) (NNS ions)) (VP (VBP move) (PP (IN across) (NP (NP (DT the) (NN cell)) (VP (VBN membrane) (PP (IN without) (NP (NP (NN input)) (PP (IN of) (NP (NN energy))))) (PP (IN by) (NP (DT the) (NN cell)))))))))) (. .)))