CPK

spinqualitylabelsall models Selenocysteine, colored by element using the CPK color scheme of Jmol: C H O N Se Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D "CPK" stands for Corey-Pauling-Koltun. It commonly refers to spacefilling physical molecular models developed by Corey, Pauling and Koltun in the 1950's and 1960's. CPK also refers to the color scheme for the elements that they adopted. CPK Color Scheme for the Elements In this color scheme, carbon is gray or black, oxygen is red, nitrogen is blue, sulfur is yellow, and hydrogen is white. As an example, to the right you see selenocysteine and then you can change its rendering with the green links below: Ball and Stick Ball and Stick Sticks Spacefilling Another example, heme C: Ball and Stick Sticks Spacefilling CPK in Jmol The command "color cpk" applies this color scheme in popular molecular visualization programs such as RasMol, Chime, and Jmol. The complete set of element colors used by Jmol is available at Jmol Colors, where the colors used by RasMol are compared with those used by Jmol. The CPK color scheme for the elements is also incorporated into a standard set of color schemes for macromolecules, DRuMS. CPK in Proteopedia A color key such as the one below can be inserted into Proteopedia using existing templates (see Help:Color Keys): C H O N P S Se Fe

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Eric Martz, Angel Herraez, Eran Hodis