I need to find the dimension and size of protein using PyMOL ,is there any one who could help me in this regard? That how to find the size and dimensions of protein and separately its chains?
You can use the"boundingBox" script ( https://pymolwiki.org/index.php/Bounding_Box ) or "DrawBounding box" script ( https://pymolwiki.org/index.php/DrawBoundingBox ) to determine the dimension.
The "split_chains" script ( https://pymolwiki.org/index.php/Split_chains )will put the different chains into separate objects
Dear Anu Manhas & Shaban Ahmad thank you for your answers but this method is just to find the distance between two atoms in a molecule . I want to calculate the whole size of protein and its dimensions.
Dear Annemarie Honegger Thank you for your answer. Let me check this method. Than I will tell whether it worked or not. It looks quite complicated and firstly I need to understand it properly.