[phenixbb] van der Wall's radii

Hi! I'm new to the list. This might be a naive question to ask, but I'm looking for information about the set of van der Waal's radii popular with most protein crystallographers. Is there a certain list that phenix uses for building from the x-ray structures. If so, where can I find it. I shall be grateful for any thoughts or inputs on this. Thanks, Ritu Rituparna Sengupta Graduate Student Biophysics Graduate Program Record Lab Department of Biochemistry Biochemical Sciences Building University of Wisconsin-Madison