( CD22 ( ( is ( ( ( a ( B cell ) ) -- ) ( ( specific protein ) ( that ( is ( ( an ( important ( accessory molecule ) ) ) ( in ( the ( B-cell ( antigen-receptor complex ) ) ) ) ) ) ) ) ) ) ; ) )
(ROOT (S (NP (NNP CD22)) (VP (VBZ is) (NP (NP (DT a) (NNP B) (NN cell)) (: --) (NP (NP (JJ specific) (NN protein)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (NP (NP (DT an) (JJ important) (JJ accessory) (NN molecule)) (PP (IN in) (NP (DT the) (JJ B-cell) (JJ antigen-receptor) (NN complex)))))))))) (: ;)))
CD22 is a B cell--specific protein that is an important accessory molecule in the B-cell antigen-receptor complex;
(ROOT (S (NP (NNPS Proteins)) (VP (VBP are) (NP (NP (JJ complex) (JJ organic) (NNS molecules)) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (NNS cells))))))) (. .)))