> 1i50_A_str_1 (A: 2-58, 81-90, 236-342) DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT VGQQYSSAPLRTVKEVQFGLFSPEEVRAISVAKIRFPETMDETQTRAKIGGLNDPRLFGH IDLAKPVLTCLPVPPPPVRPSISFNESQRGEDDLTFKLADILKANISLETLEHNGAPHHA IEEAESLLQFHVATYMDNDIAGQPQALQKSGRPVKSIRARLKGKEGRIRGNLMG