Properties of a CCAAT box-binding protein

CCAAT box binding protein NF-Y facilitates in vivo recruitment of upstream DNA binding transcription factors.

NF-Y binds a CCAAT motif found in many eukaryotic polymerase II-dependent promoters. In the HLA-DRA promoter it has been demonstrated that stereo-specific alignment between this motif and the upstream elements X1 and X2 is required for activation. To study the underlying mechanism for this requirement, a panel of transfected cell lines that maintained integrated, wild-type and mutant promoters ...

RNA-binding properties of the mitochondrial Y-box protein RBP16.

We have previously identified a mitochondrial Y-box protein in Trypanosoma brucei that we designated RBP16. The predicted RBP16 amino acid sequence revealed the presence of a cold-shock domain at its N-terminus and a glycine- and arginine-rich C-terminus reminiscent of an RGG RNA-binding motif. Since RBP16 is capable of interacting with different guide RNAs (gRNAs) in vitro and in vivo primaril...

CCAAT-box binding protein NF-Y (CBF, CP1) recognizes the minor groove and distorts DNA.

The CCAAT box is one of the most common promoter elements. The evolutionarily conserved heteromeric factor NF-Y binds this sequence with high affinity and specificity. By comparing the methylation interference patterns of different sites, performing electrophoretic mobility shift assays (EMSA) with IC-substituted oligonucleotides and competition experiments with the minor groove binding (MGB) d...

CCAAT/Enhancer-Binding Protein Thrombin-Induced

CEBPA (CCAAT enhancer binding protein alpha)

C/EBPa protein domains The basic region leucine zipper domain mediates DNA binding, homodimerization of C/EBPa and heterodimerization with other members of the C/EBP family. This region is also involved in mediating protein-protein interactions with other transcription factors involved in lineage determination and growth proliferation. N-terminal region transactivating domains mediate interacti...