tokens: Yeast U1 snRNP therefore contains 16 different proteins , including seven snRNP core proteins , three homologues of the metazoan U1 snRNP specific proteins , and six yeast specific U1 snRNP proteins .
folded_tokens: yeast u1 snrnp therefore contain 16 different protein , include seven snrnp core protein , three homologue of the metazoan u1 snrnp specific protein , and six yeast specific u1 snrnp protein .