Journal: Sensors and Actuators B: Chemical
Article Title: Optogenetic STING clustering system through nanobody-fused photoreceptor for innate immune regulation
doi: 10.1016/j.snb.2023.134822
Figure Lengend Snippet: Fig. 3. Blue light-induced clustering of FL-OptoSTING and its subcellular localization. (A) Schematic of mCherry fused αGFP-CRY2 construct and FP-fused FL- OptoSTING construct. (B) Fluorescence images of HeLa cells co-expressing an ER marker with either STING(1−378)-EYFP or EYFP-STING(1−378). (C) Fluorescence images of HeLa cells co-expressing #7 (αGFP-mCherry-CRY2) and #8 (EYFP-STING(1−378)). Cells were illuminated by blue light for 3 min at 20-s intervals. Power density of light was fixed at 1 mW mm−2. Enlarged images of indicated white box in right bottom. (D) Fluorescence images of HeLa cells expressing #8 with either mTFP1-fused Golgi or ER marker. (E) Analysis of co-localization of EYFP-STING(1−378) and indicated organelle markers from D. Graph represents the mean and SD. Scale bars, 20 µm in B, C, and D and 2 µm in enlarged image in C, respectively.
Article Snippet: Chemical 399 (2024) 134822 (Clontech) was PCR-amplified using mCherry-F and mCherry-R and inserted between αGFP and CRY2 at the AgeI site using InFusion cloning. mTFP1 sequence from mTFP1-C1 (Addgene plasmid #54613) was digested via AgeI and BsrGI and ligated into pmTurquoise2-ER (Addgene plasmid #36204) and pmTurquoise2-Golgi (Addgene plasmid #36205) after the excision of mTurquoise2 to generate mTFP1-ER and mTFP1-Golgi, respectively.
Techniques: Construct, Fluorescence, Expressing, Marker