Hi, the experts of Chimera, I am a new user of Chimera and have a question to consult you. When I display a 3D model in the volume viewer, I found that there was an original value of the level, as the attached figure shown. If I increased and decreased the values of level, the densities of 3D models were different. Therefore, how to deternime the right value of level for a protein. It is known that the average density of proteins is 1.35 g/cm3; If a protein has a molecular weight of 1350 kDa, and 1 Da = 1.66054E-27 kg; therefore, the protein volume is 1661 nm3.If I want to display the volume of 1661 nm3 in chimera, how can I decide the value of level? In another words, how can I calculate the value of level from the actual volume of a protein? Thank you! Best wishes! Lei Zhang Peking University, Beijing, China
