... p21-HTLV-CAT (lanes and 2), pCRE-HTLV-CAT (lanes and 4), pAP1-HTLV-CAT (lanes and 6), pSP1-HTLV-CAT (lanes and 8), pKB-HTLV-CAT (lanes and 10) and pSRE-HTLV-CAT (lanes 11 and 12) were transfected into HeLa ... (1 µg) and increasing amounts (0.5 to µg) of p21-HTLV-CAT (lanes and 2), pCRE-HTLV-CAT (lanes and 4), pAP1HTLV-CAT (lanes and 6), pSP1-HTLV-CAT (lanes and 8), pKB-HTLV-CAT (lanes and 10) and pSRE-HTLV-CAT ... and A-LZIP might non-specifically inhibit transcription Functional significance of the HTLV-I TATAA element to transcriptional activation by Tax In the course of our analyses, we noted that Tax...