This technique allows better control over drug conjugation due to an increased number of possible conjugation sites on the mAb.
A C-terminal 6His-tag was also introduced, for purification and possible conjugation of the inhibitor to a solid phase carrier.
Consequently, a possible GSH conjugation to KP1089 has to be mediated by other mechanisms.
These include possible conjugation proteins, 3 integrases separated by large spans of hypothetical proteins, a helicase, a DNA methylase, a gene for DNA repair protein RadA, a copy of polymerase DnaN (different from the chromosome copy), at least 6 CRISPR cas genes, a DNA ligase, a thymidine kinase, 3 secretion proteins, 2 sensor histidine kinases, and possible type 4 pilin proteins.
And "Nick" is the worst possible conjugation, the command form.
The possible conjugation mechanism and mode of DNA with Tb3+ were discussed.
As IgG1s and IgG2s differ in the number of disulfides and molecular conformations, each subclass could lead to unique combinations of possible conjugation sites.
In addition, we identified at least three genes encoding possible conjugation functions (sle2_062, sle2_090 and sle2_091) suggesting that the plasmid might be capable of self-transmission by conjugation.
The release of free partner drug from the linker distinguishes this approach from conventional covalent hybrids, 11 while the introduction of the retro-Michael linker greatly expands the scope of possible conjugation chemistry as compared to other peroxidic prodrugs that require drug conjugation at a carbonyl function.
Such scaffolds have the advantage of many possible conjugations sites and high MW, enabling them to provide solubility to many hydrophobic ligands; however, conjugation results in a statistical distribution of ligand-to-scaffold ratios.
