Gliding motility assay using 22063mM D2O in solution. Replicate 1/3. ROI 11/15.
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https://figshare.com/articles/dataset/Gliding_motility_assay_using_22063mM_D2O_in_solution_Replicate_1_3_ROI_11_15_/97577
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资源简介:
• This is a gliding motility assay using kinesin-1 and rhodamine labeled microtubules.
• The buffer used was PEM (also known as BRB80) with the inclusion of 22063mM D2O.
• Images were taken with an Andor Luca EMCCD camera on an Olympus IX-71 microscope using a 60x 1.42NA PlanApo objective.
• This fileset is replicate 1/3 and ROI 11/15.
• Images were taken to investigate speed variations of microtubules due to the inclusion of D2O in the motility assay.
• The temperature of the slide was held constant at 32°C by an objective heater. Early ROIs, i.e. 1-5, have slower giding speeds due to the increasing temperature of the slide which, was prepared at room temperature before observation. After ROI 5 the gliding speed stabilizes.
• Pixels lengths were measured to be 166nm/pixel using a stage micrometer.
• After the files have downloaded, a simple command line entry will convert the images to a movie. Mencoder must be installed. ls > list.txt | mencoder mf://@list.txt -mf w=496:h=658:fps=30:type=png -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:trell -o output.avi
• Upload of these files were made possible through the figshare API.
• 本实验为基于驱动蛋白-1(kinesin-1)与罗丹明(rhodamine)标记微管的滑行运动测定实验。
• 所用缓冲液为PEM(又称BRB80),并添加了22063mM重水(D₂O)。
• 图像采集使用奥林巴斯(Olympus)IX-71显微镜,搭载安多(Andor)Luca电子倍增电荷耦合器件(Electron Multiplying Charge-Coupled Device,EMCCD)相机,搭配60×、1.42数值孔径(NA)的PlanApo物镜完成。
• 该文件集对应第1/3组重复实验与第11/15个感兴趣区域(Region of Interest,ROI)。
• 本次图像采集旨在探究滑行运动测定实验中,重水添加对微管滑行速度的影响。
• 载物台温度通过物镜加热器恒定维持在32℃。早期感兴趣区域(即1至5号)因观测前载物台于室温制备,实验过程中载物台温度逐渐升高,导致微管滑行速度偏慢;5号区域之后,滑行速度趋于稳定。
• 通过载物台测微尺(stage micrometer)校准,像素长度为166nm/像素。
• 文件下载完成后,可通过简单命令行指令将图像转换为视频。需提前安装Mencoder,具体指令为:ls > list.txt | mencoder mf://@list.txt -mf w=496:h=658:fps=30:type=png -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:trell -o output.avi
• 本数据集文件通过figshare应用程序编程接口(API)完成上传。
创建时间:
2012-11-15



