Potassium Channel KcsA

thingiverse

Ion channels, such as potassium channels, are essential to the way our nerves work. This is a model of the potassium channel KcsA, from Streptomyces lividans. KcsA is a tetrameric protein composed of four identical subunits. "Potassium channels are designed to allow the flow of potassium ions across the membrane, but to block the flow of other ions--in particular, sodium ions." --http://www.rcsb.org/pdb/101/motm.do?momID=38 Four copies of 1K4C-surf_fixed.stl must be printed to make the tetrameric channel. Four copies of 1K4C-K.stl must be printed to give the four ions shown in the figures. The stl files presented here are to the same scale, so the same scaling must be applied if they are rescaled. Model based on the Protein Data Bank entry 1K4C: --http://www.pdb.org/pdb/explore/explore.do?pdbId=1k4c Model created using VMD:http://www.ks.uiuc.edu/Research/vmd/ Instructions Successfully printed in PLA on a Makerbot Replicator2 using MakerBot Desktop beta 3.6.0.76, standard resolution with 3 shells and 15% infill. Use rafts and supports. Four copies of 1K4C-surf_fixed.stl are needed to make the potassium channel. They are colored dark and light blue in the pictures. Four copies of 1K4C-K.stl are needed to make the magenta spheres shown in the pictures.