Journal: Scientific Reports
Article Title: microRNA regulatory circuits in a mouse model of inherited retinal degeneration
Figure Lengend Snippet: LC-MS/MS retinal proteome analysis in R347 versus wt mice. Whole retina protein (n = 4) and retinal membrane protein (n = 4) extracts were prepared from one month-old R347 and wt mice. LC-MS/MS analysis was performed on an Ultimate3000 nano HPLC system coupled to a LTQ OrbitrapXL mass spectrometer. ( a ) Representative LC-MS/MS profile detected in the retinal samples. ( b ) Distribution of the 1895 identified protein IDs, which were mapped to 1446 gene IDs. 1337 gene IDs were present in the GO database (GO); GO: M refers to entries with membrane in their GO search terms. ( c ) Volcano plot representation of the identified protein IDs in R347 versus wt retinas. X-axis indicates difference in expression level on a log2 scale, whereas the y-axis represents corresponding p-values (Student’s t-Test) on a negative log scale. Red lines indicate 0.5-fold and 2-fold differences in protein expression and significance level of p = 0.05, respectively. Scaling was limited to -6 and 6 on the horizontal axis and 4 on the vertical axis. Entries outside the limiting values were set to the corresponding limiting values.
Article Snippet: LC-MS/MS analysis was carried out on an Ultimate3000 nano HPLC system (Dionex, Sunnyvale, CA, USA) coupled to a LTQ OrbitrapXL mass spectrometer (Thermo Fisher Scientific Inc., Waltham, MA, USA) .
Techniques: Liquid Chromatography with Mass Spectroscopy, Mass Spectrometry, Mouse Assay, High Performance Liquid Chromatography, Expressing