Class BioShape

http://www.rcsb.org/pdb/lists/pdb-l/200303/000609.html > -----Original Message----- > From: pdb-l-admin@sdsc.edu [mailto:pdb-l-admin@sdsc.edu] On > Behalf Of Philipp Heuser > Sent: Thursday, March 27, 2003 6:05 AM > To: pdb-l@sdsc.edu > Subject: pdb-l: temperature factor; occupancy > > > Hi all! > > Does anyone know where to find proper definitions for the > temperature factors > and the values for occupancy? > > Alright I do know, that the atoms with high temperature > factors are more > disordered than others, but what does a temperature factor of > a specific > value mean exactly. > > > Thanks in advance! > > Philipp > pdb-l: temperature factor; occupancy Bernhard Rupp br@llnl.gov Thu, 27 Mar 2003 08:01:29 -0800 * Previous message: pdb-l: temperature factor; occupancy * Next message: pdb-l: Structural alignment? * Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Isotropic B is defined as 8*pi**2. Meaning: eight pi squared =79 so B=79*mean square displacement (from rest position) of the atom. as u is in Angstrom, B must be in Angstrom squared. example: B=79A**2 thus, u=sqrt([79/79]) = 1 A mean positional displacement for atom. See also http://www-structure.llnl.gov/Xray/comp/comp_scat_fac.htm#Atomic for more examples. BR

Parameters: bFactor100

Returns: ?