( ( Within ( the mitochondrion ) ) ( ( two complexes ) ( ( exist ( with ( ( beta barrels ) ( serving ( as ( ( the pore ) ( forming ( ( ( ( ( subunit , ) ( Tom40 ( of ( ( the Translocase ) ( of ( the ( outer membrane ) ) ) ) ) ) ) , ) and ) ( Sam50 ( of ( the ( Sorting ( and ( assembly machinery ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN Within) (NP (DT the) (NN mitochondrion))) (NP (CD two) (NNS complexes)) (VP (VBP exist) (PP (IN with) (NP (NP (JJ beta) (NNS barrels)) (VP (VBG serving) (PP (IN as) (NP (NP (DT the) (NN pore)) (VP (VBG forming) (NP (NP (NN subunit)) (, ,) (NP (NP (NNS Tom40)) (PP (IN of) (NP (NP (DT the) (NN Translocase)) (PP (IN of) (NP (DT the) (JJ outer) (NN membrane)))))) (, ,) (CC and) (NP (NP (NNS Sam50)) (PP (IN of) (NP (DT the) (NN Sorting) (CC and) (NN assembly) (NN machinery)))))))))))) (. .)))
Within the mitochondrion two complexes exist with beta barrels serving as the pore forming subunit, Tom40 of the Translocase of the outer membrane, and Sam50 of the Sorting and assembly machinery.
(ROOT (S (NP (CD Two) (NNS membranes)) (VP (VBP form) (NP (NP (DT the) (NN mitochondrion) (NN structure)) (PP (IN of) (NP (DT a) (NN cell))))) (. .)))