We have analyzed the existing database of PDZ domain structures in the context of a specificity tree based on binding specificities defined by peptide-phage binding selections.
CsrA has a clearly defined specificity based on binding to a specific mRNA sequence to inhibit translation.
However, since this prediction matrix is based on NFI binding specificity in vitro, the specificity of this family of proteins may be different from that observed in the cell, where interactions with other transcription factors may take place and DNA accessibility may be restrained by chromatin.
The investigators will infer TF activity based on DNA binding specificity models of human TFs, and use it as a tissue-specific parameter of the cellular environment.
Since these signaling cascades may be differentially activated based on the binding specificity and affinity of various ligands to the receptor, RXR activation may not mimic the spectrum of changes that occur when PPAR-specific agonists are used to activate the heterodimer complex.
The transport of histones from the cytoplasm to the nucleus and their subsequent assembly into nucleosomes is mediated by a diverse set of proteins including histone chaperones [ 2] that are classified into several families based on their binding specificities and sequence and structural similarities [ 2].
The three MAbs BP7 10B11, BP7 2C6, and BP1 7F7 were selected for chimeric engineering [30], [31] based on our previous studies on binding specificity, relative antibody ranking, in vitro opsonic activity, and mouse protection against BP and/or BM.
Promiscuous binding to several protease targets demonstrates the emerging importance of quantitative studies on binding specificity.
Our point is that in certain circumstances there may be a selective benefit to interpretive behaviour at one stage of evolution which is then superseded by a more efficient non-interpretive strategy based on high specificity binding.
Herein, we show that tri-peptides appear to be good candidates for the design of inhibitors/binders of the Elk-1 dimer interface, based on size and binding specificity; di-peptides, on the other hand, appeared to behave as generic protein surface binders.
