MeSH note : DRB sensitivity-inducing factor (DSIF) binds to RNA pol II and may directly regulate
elongation; DSIF is composed of 160- and 14-kDa subunits which are homologs of the
Saccharomyces cerevisiae transcription factors Spt5 and Spt4; see also records for
SPT4 and SPT5;
MeSH synonym : 5,6-dichloro-1-beta-D-ribofuranosylbenzimidazole sensitivity-inducing factor, C elegans; DRB sensitivity-inducing factor, C elegans;