West et al. (2007) reported that they were unable to detect GTPase activity in full-length LRRK2 when expressed and immunopurified from mammalian cells, whereas Ito et al. (2007) could only see measurable activity if the protein was mutated to resemble the more active small GTPase, Ras.
Since intraoperative gamma detectors are designed for measurements of diagnostic radionuclides and low amounts of activity, the maximum measurable activity was a parameter of interest in this study.
This demonstrates that mutations previously described to activate non-natural nitrene-transfer activity in P450BM3 may confer measurable activity on other P450s as well.
More commonly, however, one does have a very poor protein (clone) with at least some measurable activity, and the aim is to evolve this into a much more active variant.
And a recent study of about 30,000 Sina Weibo users found that about 57 percent of the sampled accounts had no measurable activity or posts.
bN/A means no measurable activity.
Both detectors reached a maximum measurable activity.
For L-arabinose no measurable activity was found.
LHn/B also showed measurable activity in living spinal cord neurons.
The two ketones analyzed, DHA and D-xylulose, showed no measurable activity.
While the VP16 Inr sequence is identical to that of several murine TATA-less promoters, the VP16 Inr requires a TATA box for measurable activity.
