THE GRASP MANUAL ---------------- GRASP: Graphical Representation and Analysis of Surface Properties      Introduction: Why Grasp became what it is  (pgs 1-4)      Features: What Grasp can do and what it cannot do (pgs 5-17)      Color Coding      Surfaces      Electrostatics      Distance Calculations      Maps      Atoms      Bonds      Contours      Colors      Subsetting      Simple Property Mathematics      Objects      Matrix Representations      Stereo / Split Screen Operations      Basic operations:  Getting Started (pgs 18-21)      Environment Variables      Paths      Data Files      The Control Keys: Selective Short Cuts (pgs 22-27)      The Grasp A-Z.      The Command Line: Inquiring by property (pgs 28-38)      Coloring Objects      Mapping Atoms Colors to the Surface      Undo and Restore Coloring      Precise Translations and Rotations      Listing Atom Properties      Changing Atom and Surface Information Fields for Mouse Picking      Altering Radii and Charges      Specific Grasp Syntax for Negation, Concatenation and Projection      General Grasp Subsetting Syntax:      Atoms      Surfaces      Bonds      Backbone Boxes      Matrix Strands           The Menus: Doing everything else (pgs 39-67)      Display (or not) Structures in a Particular Form.      Build and/or Calculate Structures and Structural Properties.      Mouse Functions, (and how to alter them).      Read and Write Grasp data files.      Formal Subset Operations.      Other Programs, i.e. Superimpose.      Setting Internal Parameters.      Miscellaneous, Help and Quit.       Worked Examples (pgs 68-73)      Getting a molecular surface color coded by electrostatic potential.      Displaying surface potential and surface curvature side by side.      Surfacing two interacting parts of a molecule and selecting an interface.      Calculate the occluded accessible surface area between these parts.      Reading in atomic B-values from a PDB file, displaying them on the surface.      Calculating and displaying the effective dielectric from a single charge site.      Calculating average surface areas per hydrophobic and hydrophilic residue.      Finding and displaying all residues within 3 Angstroms of an active site.      Finding the common volume between two superimposed molecules.      Forming a six helix bundle from a single helix and surfacing the result.      Future Developments (pgs 74-82)      General Improvements      Specific Projects:              Intelligent DelPhi              Secondary Structure Display              Docking with Realistic Energies      Appendices A, B and C (pgs 83-89)      Appendix A: File Formats      Appendix B: .init_grasp commands      Appendix C: Grasp data files      Addenda (pgs 90-92)      References (pg 93)