Complex sentence: The paratope on the B cell receptor comes in contact only with those amino acids that lie on the "surface" of the protein, which would actually be discontinuous, but get juxtaposed owing to the complex protein folding patterns (as in the adjoining figure).
Split into simpler sentences: The paratope on the B cell receptor comes in contact only with those amino acids that lie on the "surface" of the protein. The surface amino acids may actually be discontinuous in the protein's primary structure, but get juxtaposed owing to the complex protein folding patterns (as in the adjoining figure).