TAP Family: S1Fa-like
Zhou et al (1995): A cDNA encoding a specific binding activity for the tissue-specific negative cis-element S1F binding site of spinach rps1 was isolated from a spinach cDNA expression library. This cDNA of 0.7 kb encodes an unusual small peptide of only 70 amino acids, with a basic domain which contains a nuclear localization signal and a putative DNA binding helix. This protein, named S1Fa, is highly conserved between dicotyledonous and monocotyledonous plants and may represent a novel class of DNA binding proteins. The corresponding mRNA is accumulated more in roots and in etiolated seedlings than in green leaves. This expression pattern is correlated with the tissue-specific function of the S1F binding site which represses the rps1 promoter preferentially in roots and in etiolated plants.
This TAP family belongs to the S1Fa-like structural class of the Yet undefined DNA-binding domains structural superclass, as defined in Plant-TFClass (Blanc-Mathieu et al. 2024)
References:
Zhou, DX; Bisanz-Seyer, C; Mache, R. 1995. Molecular cloning of a small DNA binding protein with specificity for a tissue-specific negative element within the rps1 promoter. Nucleic Acids Res. 23(7):1165-9
Blanc-Mathieu, Romain et al. 2024. Plant-TFClass: a structural classification for plant transcription factors. Trends in Plant Science, Volume 29, Issue 1, 40 - 51
