>1j2q_L mol:protein length:202 Proteasome beta subunit TTTVGLVCKDGVVMATEKRATMGNFIASKAAKKIYQIADRMAMTTAGSVGDAQFLARII KIEANLYEIRRERKPTVRAIATLTSNLLNSYRYFPYLVQLLIGGIDSEGKSIYSIDPIG GAIEEKDIVATGSGSLTAYGVLEDRFTPEIGVDEAVELAVRAIYSAMKRDSASGDGIDV VKITEDEFYQYSPEEVEQILAKFRK