Therefore, the phages binding to unspecific proteins can be washed away under stringent conditions, subsequently rescuing bound phages that is immobilised on the plate.
To avoid probes unspecific binding to repetitive DNA sequences, samples were precipitated with 1 μg of Rat Hybloc competitor DNA (Insight Biotechnology Limited, Wembley, UK).
However, while these modifications are carried out to achieve resistance to undesirable DNase degradation, decreased binding to the target sequence or unspecific binding happens sometimes.
For each primer combination, one primer was designed to recognize a sequence region with a nucleotide insertion or deletion specific for a given gene copy, the second primer binding to an unspecific region of either TaSK1 or TaSK2.
By careful oligonucleotide design, and/or by addition of single-stranded DNA-binding protein, problems with unspecific sequence signals due to mispriming can be reduced.
They also indicate that at high protein concentrations (above 500 nM, corresponding to 10 pmoles per assay), some unspecific binding to double-stranded attC and single-stranded attI fragments was observed (unspecific binding was also observed under these concentration conditions when an unspecific random 100 bp ODN was used, data not shown).
In these experiments, unspecific binding to Fc receptors was blocked by addition of human gamma globulin to the autoradiography buffer.
Hence, the low amount of unspecific retention of [18F]FIBT represents a substantial improvement, because compared to [11C]PiB, most 18F-labeled AD tracers in advanced clinical trials show a higher tendency towards unspecific binding to the white matter in humans [52,55].
Moreover, 44Sc-PSMA-617 bound specifically to PSMA-expressing PC-3 PIP tumor cells, while unspecific binding to PC-3 flu cells was not observed.
The mean percentage of plasma free fraction (ff) and percentage of unspecific binding to the filter matrix of the Centrifuge vials was determined.
