PubMed · 359090
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
1978-09-02. Modified neurosyphilis.. https://pubmed.ncbi.nlm.nih.gov/359090/
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
Cellular immunofluorescence studies can be validated by using either specific small interfering RNA (siRNA) duplexes or expression plasmids that induce the expression of specific siRNAs. The usage of either siRNA tool reduces the expression of the specific protein being studied, thus reducing substantially or abolishing the immunofluorescence detected when using a fluorescent antibody that recognizes the protein.
The ability to noninvasively observe translational diffusion of proteins and protein complexes is important to many biophysical problems. We report high signal/noise (>or=250) measurements of the translational diffusion in viscous solution of the fluorescent protein, DsRed. This is carried out using a new technique: molecular Fourier imaging correlation spectroscopy (M-FICS). M-FICS is an interferometric method that detects a collective Fourier component of the fluctuating density of a small population of fluorescent molecules, and provides information about the distribution of molecular diffusivities. A theoretical analysis is presented that expresses the detected signal fluctuations in terms of the relevant time-correlation functions for molecular translational diffusion. Furthermore, the role played by optical orientational degrees of freedom is established. We report Fickian self-diffusion of the DsRed tetramer at short timescales. The long-time deviation of our data from Fickian behavior is used to determine the variance of the distribution of the protein self-diffusion coefficient. We compare our results to the expected outcomes for 1), a bi-disperse distribution of protein species, and 2), dynamic disorder of the host solvent.
Explore the source record for details and available documents.