SCAF8

SR-related and CTD-associated factor 8

1271 amino acids

Anti-terminator protein required to prevent early mRNA termination during transcription (PubMed:31104839). Together with SCAF4, acts by suppressing the use of early, alternative poly(A) sites, thereby preventing the accumulation of non-functional truncated proteins (PubMed:31104839). Mechanistically, associates with the phosphorylated C-terminal heptapeptide repeat domain (CTD) of the largest RNA polymerase II subunit (POLR2A), and subsequently binds nascent RNA upstream of early polyadenylation sites to prevent premature mRNA transcript cleavage and polyadenylation (PubMed:31104839). Independently of SCAF4, also acts as a positive regulator of transcript elongation (PubMed:31104839).

140.519 kDa

MEAVKTFNSELYSLNDYKPPISKAKMTQITKAAIKAIKFYKHVVQSVEKFIQKCKPEYKVPGLYVIDSIVRQSRHQFGQEKDVFAPRFSNNIISTFQNLYRCPGDDKSKIVRVLNLWQKNNVFKSEIIQPLLDMAAGIPPPVVTPVLASTTTAMSNTPGTPVTPVTPANVVQGLPDPWVSQITNTDTLAAVAQILQSPQGQQLQQLIQTLQIQQQKPQPSILQALDAGLVVQLQALTAQLTAAAAAANTLTPLEQGVSFNKKLMDRFDFGEDSEHSEEPKKEIPASQLSHVSESVNNSIFHQIAEQLQQQNLEHLRQQLLEQQQPQKATPQDSQEGTFGSEHSASPSQGSSQQHFLEPEVNLDDSIDIQQQDMDIDEGQDGVEEEVFEQEAKKVAVRSRSRTHSRSRSRSPRKRRSRSRSGSRKRKHRKRSRSRSRERKRKSSRSYSSERRAREREKERQKKGLPPIRSKTLSVCSTTLWVGQVDKKATQQDLTNLFEEFGQIESINMIPPRGCAYVCMVHRQDAFRALQKLSSGSYKIGSKVIKIAWALNKGVKTEYKQFWDVDLGVTYIPWEKVKVDDLEGFAEGGMIDQETVNTEWETVKSSEPVKETVQTTQSPTPVEKETVVTTQAEVFPPPVAMLQIPVAPAVPTVSLVPPAFPVSMPVPPPGFSPIPPPPFLRASFNPSQPPPGFMPPPVPPPVVPPPTIPPVVPTSLVQPSLSMTPETVKDVGFGSLVIPGGSVASNLATSALPAGNVFNAPTKQAEPEEKVPHLIDHQISSGENTRSVIPNDISSNAAILGGQPPNVTSNSGILGVQRPNVSSNSEILGVRPSNVSSSSGIIAAQPPNILNNSGILGIQPPSVSNSSGLLGVLPPNIPNNSGLVGVQPPNVPNTPGLLGTQPPAGPQNLPPLSIPNQRMPTMPMLDIRPGLIPQAPGPRFPLIQPGIPPQRGIPPPSVLDSALHPPPRGPFPPGDIFSQPERPFLAPGRQSVDNVTNPEKRIPLGNDNIQQEGDRDYRFPPIETRESISRPPPVDVRDVVGRPIDPREGPGRPPLDGRDHFGRPPVDIRENLVRPGIDHLGRRDHFGFNPEKPWGHRGDFDEREHRVLPVYGGPKGLHEERGRFRSGNYRFDPRSGPWNRGFGQEVHRDFDDRRRPWERQRDRDDRDFDFCREMNGNRLGRDRIQNTWVPPPHARVFDYFEGATSQRKGDNVPQVNGENTERHAQPPPIPVQNDPELYEKLTSSNEINKEKSDTVADIESEPVVESTETEGT

Scaf8

SR-related and CTD-associated factor 8

1268 amino acids

Anti-terminator protein required to prevent early mRNA termination during transcription. Together with SCAF4, acts by suppressing the use of early, alternative poly(A) sites, thereby preventing the accumulation of non-functional truncated proteins. Mechanistically, associates with the phosphorylated C-terminal heptapeptide repeat domain (CTD) of the largest RNA polymerase II subunit (POLR2A), and subsequently binds nascent RNA upstream of early polyadenylation sites to prevent premature mRNA transcript cleavage and polyadenylation. Independently of SCAF4, also acts as a positive regulator of transcript elongation.

139.572 kDa

MEAVKTFNSELYSLNDYKPPISKAKMTQITKAAIKAIKFYKHVVQSVEKFIQKCKPEYKVPGLYVIDSIVRQSRHQFGQEKDVFAPRFSNNIISTFQNLYRCPGDDKSKIVRVLNLWQKNNVFKSEIIQPLLDMAAGIPPPVVTPVLASTTAAMSNTPGTPVTPVTPANVVQGLPDPWVSQIANTDTLAAVAQILQSPQGQQLQQLIQTLQIQQQKPQPSILQALDAGLVVQLQALTAQLTAAAAAANTLTPLDQGVSFNKKLMDRFDFGEDSEHSEESKKEMPTPQLSHVSESVNNSIFHQIAEQLQQQNLEQLRQQLLEQQQPQKVTPQDSQEGTFGSEHSASPSQGSSQQHFLEPEANLDDSIDIQQQDMDIDEGQDVVEEEIFEPEAKKVAVRSRSRTHSRSRSRSPRKRRSRSRSGSRKRKHRKRSRSHSREKKRKASRSYSSERRAREREKERQKKGLPPVRSKTLSVCSTTLWVGQVDKKATQQDLTNLFEEFGQIESINMIPPRGCAYVCMVHRQDSFRALQKLSSGSYKIGSKVIKIAWALNKGVKTEYKQFWDVDLGVTYIPWEKVKVDDLDGFAEGGMIDQETVNAEWETVKASEPVKEPVQTAQSPAPVEKESVVTTQAEVFPPPVAMLQIPVAPAVPAVSLVPPAFPVSMPVPPPGFNPIPPPPFLRASFNPSQPPPGFMPPPVPPPVVPPPAIPPVVPTSLVQPPLSMTPEAVKDVGFGSLVLPSGSVAGSLAPSTLPAGNVFNPPSKAEPEEKVPHLIEHQIPSGENTRPVIPSDIPSSAAMLAQPPGASSTSGILCVQRPNVSSNSEILGVRPANVSNSAAIMGAQPPNILNNSGILAIQPPNVSSGSGLLGVLPPNLPNNSGLVGLQPPNVTSPAGLLGTQPPIGPQNLPPLAIPAQRMPALPMLDIRPGLIAQAPGPRFPLLQPGIPPQRGIPPPSVLDAALHPPPRGPFPPGDLFSQPERPFLAPGRPSIDNVPNPDKRIPLGNDNIQQEGDRDYRFPPIETREGITRPPQVDVRDVVGRRLDPREGPGRPPLDARDHFGRPPVDMRENLVRPSLDHLGRRDHFGFPPEKPWGPRDFDEREHRVLPVFGGPKGLHEERGRFRAGNYRFDPRSGPWNRGFGQEVHRDFDDRRRPWERQRDRDDRDFDFCREINGNRLGRDRIQNTWVPPPHARVFDYFEGATSQRKGDNVPQVNGENTERHAQPPPLPVQKDPELYEKLASSGDVDKEESGTVAGVESEAVVESTETEGT

Scaf8

SR-related and CTD-associated factor 8

1268 amino acids

Anti-terminator protein required to prevent early mRNA termination during transcription. Together with SCAF4, acts by suppressing the use of early, alternative poly(A) sites, thereby preventing the accumulation of non-functional truncated proteins. Mechanistically, associates with the phosphorylated C-terminal heptapeptide repeat domain (CTD) of the largest RNA polymerase II subunit (POLR2A), and subsequently binds nascent RNA upstream of early polyadenylation sites to prevent premature mRNA transcript cleavage and polyadenylation. Independently of SCAF4, also acts as a positive regulator of transcript elongation.

139.504 kDa

MEAVKTFNSELYSLNDYKPPISKAKMTQITKAAIKAIKFYKHVVQSVEKFIQKCKPEYKVPGLYVIDSIVRQSRHQVGQEKDVCAPRFSNNIISTFQNLYRCPGDDKSKIVRVLNLWQKNNVFKSEIIQPLLDMAAGIPPPVVTPVLASTTVAMSNTPGTPVTPVTPANVVQGLPDPWVSQITNTDTLAAVAQILQSPQGQQLQQLIQTLQIQQQKPQPSILQALDAGLVVQLQALTAQLTAAAAAANTLTPLDQGVSFNKKLMDRFDFGEDSEHSEESKKEIPTPQLSHVSESVNNSIFHQIAEQLQQQNLEQLRQQLLEQQQPQKVTPQDSQEGAFGSEHSASPSQGSSQQHFLEPEANLDDSIDIQQQDMDIDEGQDVVEEEIFEPEAKKVAVRSRSRTHSRSRSRSPRKRRSRSRSGSRKRKHRKRSRSRSRERKRKSSRSYSSERRAREREKERQKKGLPPVRSKTLSVCSTTLWVGQVDKKATQQDLTNLFEEFGQIESINMIPPRGCAYVCMVHRQDSFRALQKLSSGSYKIGSKVIKIAWALNKGVKTEYKQFWDVDLGVTYIPWEKVKVDDLDGFAEGGMIDQETVNAEWETVKTSEPVKETVQTTQSPAAVEKETVVTTQSEVFPPPVTMLQIPVAPTVPAVSLVPPAFPVSMPVPPPGFSPIPPPPFLRASFNPSQPPPGFMPPPVPPPVVPPPAIPPVVPTSLVQPPLSMTPETVKDVGFGSLVLPGGSVAGNLAPSTLPAGNVFNPPSKAEPEEKVPHLTEHQIPSGENTRPVIPSDIPSSAPMLAQPPGASNTSGILCVQRPNVSSNSEILGVRPANVSNSAAIMGAQPPNMLNNSGILGIQPPNVSSGSGLLGVLPPNLPNNSGLVGLQPPNVTNPAGLLGTQPPIGPQNLPPLTIPAQRMPALPMLDIRPGLIAQAPGPRFPLLQPGIPPQRGIPPPSVLDAALHPPPRGPFPPGDLFSQPERPFLAPGRPNIDSVPNPDKRIPLGNDNIQQEGDRDYRFPPIETREGINRPPPVDVRDVVGRPIDPREGPGRPPLDGRDHFGRPPVDMRETLVRPGLDHLGRRDHFGFPPEKPWGPRDFDEREHRVLPVFGGPKGLHEERGRFRAGNYRFDPRSGPWNRGFGQEVHRDFDDRRRPWERQRDRDDRDFDFCREINGNRLGRDRIQNTWVPPPHARVFDYFEGATSQRKGENVPQVNGGNTERHAPPPPLPVQKDPELYEKLASSGDADKEESGTAAGVESEAVVESTETEGT