William,It is one of the purposes of CANDO - a Chemistry package that runs on top of Clasp to develop molecules (protein kinase inhibitors included) to bind and disrupt protein-protein interfaces.CANDO (Computer Aided Nanostructure Design and Optimization) is a large collection of functions and classes that allow the programmer to build and design molecules. It runs within Clasp. CANDO is written in C++ and in Clasp Common Lisp.Clasp is a Common Lisp compiler that uses LLVM as its backend and interoperates with C++.Clasp is under active development and is available at github.com/drmeister/claspCANDO is not yet available on github but will be as soon as I get it to do something useful again (build molecules). CANDO is code that I wrote years ago and it used to be exposed to Python. Then I got fed up with Python and decided to start a little side project to develop a better language (Clasp) to support CANDO.Best,.Chris.On Jul 5, 2015, at 11:27 AM, William Erbil <wkerbil@umn.edu> wrote:Dear Clasp developers,Has anyone thought about using Clasp in the development of protein kinase inhibitors that bind at protein-protein interfaces?Kaya