Interrogating HIV integrase for compounds that bind- a SAMPL challenge
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Tremendous gains and novel methods are often developed when people are challenged to do something new or difficult. This process is enhanced when people compete against each other-this can be seen in sport as well as in science and technology (e.g. the space race). The SAMPL challenges, like the CASP challenges, aim to challenge modellers and software developers to develop new ways of looking at molecular interactions so the community as a whole can progress in the accurate prediction of these interactions. In order for this challenge to occur, data must be supplied so the prospective test can be done. We have supplied unpublished data related to a drug discovery program run several years ago on HIV integrase for the SAMPL4 challenge. This paper describes the methods used to obtain these data and the chemistry involved.
KeywordsHIV integrase Structure based drug design SPR Crystallography SAMPL challenge
DLM acknowledges the financial support of the National Institutes of Health (1R15GM096257-01A1), and computing support from the UCI GreenPlanet cluster, supported in part by NSF Grant CHE-0840513. The work was supported by a commercial ready grant COMO4229 from the Commonwealth of Australia, Department of Innovation, Industry, Science and Research to Avexa Pty Ltd. We thank the Australian Synchrotron and the beamline scientists at MX1 and MX2 for their help in data collection; and the Collaborative Crystallisation Centre for producing the protein crystals used in this study. Compounds in this study were prepared for Avexa Pty Ltd by Dr G. Le (now at Alchemia Pty Ltd), Dr J.A. Smith (now at F.B. Rice Pty Ltd), SYNthesis med chem Pty Ltd, Dr J. Spencer (now at the University of Sussex, UK) and Dr H. Patel at the time at the University of Greenwich, UK. We thank OpenEye Scientific Software for a license to their software.
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