Elf-1 binds exclusively to the underphosphorylated form of Rb and fails to bind to Rb mutants derived from patients with retinoblastoma .
elf-1 binds exclusively to the underphosphorylated form of rb and fails to bind to rb mutants derived from patients with retinoblastoma .
B-protein_molecule O O O O O O O B-protein_molecule O O O O O B-protein_family_or_group I-protein_family_or_group O O B-multi_cell O B-other_name O