NCIt synonyms : SP1; Stimulatory Protein 1; Sp1 Transcription Factor;
NCIt definition : Transcription factor Sp1 (785 aa, 80 kDa) is encoded by the human SP1 gene. This
protein plays a role in the regulation of gene expression.;
NCIt note : Transcription factor SP1 is a DNA-binding protein that interacts with various RNA
polymerase II gene promoters containing GC-box elements. It has contiguous zinc finger
motifs and requires zinc for sequence-specific binding to DNA. The formation of head
segments in Drosophila depends on the homologue of the human transcription factor
SP1. (from OMIM 189906);