Journal: bioRxiv
Article Title: An ATP-Binding Cassette Transporter Gene Links Innate and Adaptive Immune Responses
doi: 10.1101/2023.12.31.573785
Figure Lengend Snippet: ABCF1 Parallels OAS1a Expression and Controls 2-5A Activity A) The immunoprecipitates were immunoblotted with anti-ABCF1 and anti-OAS1a antibodies. B) ABCF1 was over-expressed (Over Exp.) in BMDMs, an equal amount of whole cell lysates was immunoprecipitated with anti-ABCF1 antibody and the immunoprecipitates were detected with anti-ABCF1 and anti-OAS1a antibodies using western blots. C) Protein levels of OAS1a, ABCE1 and RNase L were analyzed from whole cell lysates from Abcf1 siRNA-treated BMDMs in presence or absence of Poly(I:C). Expression levels of the protein was assessed by western blotting analysis. D) Increased pyrophosphate production (a readout of 2-5A activity) was measured in scrambled and Abcf1 siRNA treated BMDMs in presence and absence of recombinant OAS1. E) Total RNA was extracted from Abcf1 siRNA treated BMDMs in presence or absence of Poly(I:C) and was run on a Agilent 2100 Bioanalyzer. 28S and 18S RNA have been shown and RIN score was calculated. Bars indicate the mean ±standard deviation. The data is representative of 3 separate experiments. The expression of ABCF1 follows a pattern that parallels the expression of OAS1a, and it also exerts control over the activity of 2-5A. This suggests a regulatory relationship where ABCF1’s expression correlates with OAS1a expression and influences the activity of 2-5A.
Article Snippet: For all co-immunoprecipitation (Co-IP) samples, the sample buffer was formulated without dithiothreitol (DTT), unless explicitly stated otherwise (Anti ABCF1 antibody for co- immunoprecipitation was sourced from Proteintech; catalog 13950-1-AP).
Techniques: Expressing, Activity Assay, Immunoprecipitation, Western Blot, Recombinant, Standard Deviation, Control