Several new functions of Ras , such as downregulation of major histocompatibility complex molecules , upregulation of certain cytokines , growth factors and degradative enzymes have been uncovered in the last decade .
several new functions of ras , such as downregulation of major histocompatibility complex molecules , upregulation of certain cytokines , growth factors and degradative enzymes have been uncovered in the last decade .
O O O O B-protein_family_or_group O O O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O O B-protein_family_or_group O B-protein_family_or_group I-protein_family_or_group O B-protein_family_or_group I-protein_family_or_group O O O O O O O O