The vitamin D receptor binds the active form of 25(OH D (i.e., 1,25 dihydroxyvitamin D (1,25(OH)2D)) in the nucleus of breast epithelial cells, thereby reducing cell proliferation, and increasing cell differentiation, autophagy and apoptosis [ 44].
Briefly, nuclear extracts were prepared according to the Nuclear Extract Kit (Active Motif, CA, USA) and 3ug of nuclear proteins were added to a 96- well plate containing an immobilized oligonucleotide corresponding to the NF-κB consensus site (5VGGGACTTTCC-3 V) and to which specifically binds the active form of NF-κB present in the nuclear extract.
These probes bind to the active form of a protease and become permanently bound to the active site nucleophile.
This is essentially a signaling device that allows the T-cell to bind to the active form of vitamin D, the steroid hormone calcitriol.
We therefore investigated whether the disrupted BIR domain of survivin-ΔEx3 could still bind to the active form of caspase-3.
GlaxoSmithKline and Pfizer compounds bind to the active form of the PDK1 kinase, whereas the Sunesis compound, perhaps the most selective PDK1 kinase inhibitor, binds to the inactive form of PDK1.
Thus, we consider the fact that clusterin, as a chaperon molecule, has been found to bind with the active form of Bax under apoptotic stimuli inhibiting its dimerization in the mitochondria and block apoptosis.
IQGAP1 also directly binds to the active form of Rac, Arp2/3 and N-WASP, thereby regulating actin reorganization in active migrating cells [13], [15], [16].
Binding of the active form of JA, JA-isoleucine, to COI1 and subsequent interaction of the complex with JAZ proteins is followed by ubiquitination by SCFCOI1 and proteasomal degradation, allowing the release of MYC2 and activation of JA responses.
The non-lipidated inhibitor NS-134, the precursor of NS-629, binds to the active form of CtsB by forming a covalent bond with the catalytic Cys29 residue and occupies the S4 to substrate-bindingding sites.[ 9] The efficacy of the lipidated NS-629 inhibitor was evaluated by active-site titration with recombinant CtsB.
