Immunogen sequence: ANKPKGRQAK MAFVNSVAKP PRDVRRRQEK FGTGGAAVPE KIKIKPAPYP MGSSHASASS ISFNPSPEEP AYDGPSTSSA HLAPVVSSTV SYDPRKPTVK KIAPMMAKTI KAFKNRFSRR. This gene encodes the transcriptionally active subunit of the SIII (or elongin) transcription elongat