In contrast to that, Zn2+ had a complex effect on the putative two-α form of the α3β4 receptor (α3β4 1∶9, filled circles in Fig. 5B).
As we hypothesized, no Zn2+ enhancement was seen for the putative three-α form of the α3β4 receptor (α3β4 9∶1, filled squares in Fig. 5B): Zn2+ only inhibited ACh currents with an IC50 of 400±50 µM and an (absolute) Hill slope value of 1.4±0.1 (n = 4).
As the rectal walls expand with filling, stretch receptors from the nervous system, located in the rectal walls, stimulate the desire to defecate.
The receptor compartment was filled with 29 mL of PBS maintained at 37°C).
After equilibrium for 1 h, the receptor compartment was filled with PBS.
The receptor compartment was filled with citrate buffer (pH 3.0) and stirred gently by a magnetic stirrer (84-1A, Shanghai, China).
The receptor compartment was filled with 25 mL PBS pH 7.4, maintained at 37.5±0.5 °C and magnetically stirred to prevent any boundary layer effects.
The receptor compartment was filled with 12.0 ml of DMEM (Dulbecco's modified Eagle's medium) containing 4.5 g L−1 glucose, 2.0 mM L-glutamine, 10% foetal calf serum, 1.0 IU ml−1 penicillin and 1.0 μg ml−1 streptomycin.
ERY-SLNs aqueous dispersion (2 mL) was placed in the donor compartment, and the receptor compartment was filled with dissolution medium (pH 6.8 phosphate buffer) and maintained temperature at 32 ± 0.5°C by continuous stirring at 100 rpm.
As a result of searching all 'native' complexes in the database, a collection of fragments (which we call FragVLib) filling the target receptor's pocket will be generated: The program provides all fragments from all matches copied into the binding pocket of the target receptor, see example in Figure 4.
