RNA footprinting experiments suggest that the peptolide macrocycle moiety binds to the parent macrolide binding site on the E. coli ribosome with affinity that is dependent on the overall charge of the peptide tail.
The overall transformation mechanism was assessed and involved the hydroxylation/oxidation of the molecule and the subsequent loss of the glucose units bound to the parent compound.
The presence of this metabolite suggests that ferulic acid was covalently bound to the parent toxin T2.
Purified serum IgA (monomeric IgA) and monomeric IgA1 from multiple myeloma patients didn't bind to the BW5147 parent cell, the mock transfectant, or the mFcα/μR transfectant.
Quercetin metabolite inhibitory mechanisms for platelet function may include antagonism of surface receptors; they may bind to the thromboxane A2 receptor, as the parent flavonoid has been demonstrated to bind to this receptor [30], [31].
The α/β-peptides we have examined retain the side chain sequence of the α-peptide that inspired them, but the presence of multiple α → β replacements is seen to block recognition by polyclonal antibodies that bind strongly to the parent α-peptide or to prevent participation in a TCR + MHC I + peptide complex that accommodates the parent α-peptide epitope.
More recently, we found preliminary evidence that a reactive metabolite of the parent drug binds to the liver of mice.
Because only the parent compound binds to the estrogen receptor, conjugation is a detoxification mechanism that represents the major clearance pathway for BPA.
We focused our efforts on the study of DAPI and ethidium derivatives, because their cellular distribution might be easily monitored by fluorescence microscopy, thanks to the intrinsic fluorescence of the protected dyes and the characteristic emission pattern of the parent dyes when bound to the DNA (Fig. 4 and 5).
Compared to the parent LXY1 peptide, LXY30 binds to the α3 subunit of α3β1 integrin on the surface of glioblastoma cells with a 44-fold higher binding affinity and enters into the tumor cells.
Politically aligned with the kids (John Phillip Law and Alexandra Hay, as a pair of blissed-out flower children) but culturally bound to the grownups (Jackie Gleason and Carol Channing as Hay's parents, a retired mob hit man and his ditzy but complicit wife), Preminger allows his ambivalence to fester into an across-the-board caricature.
