Forum 09/25/2003

“A Semi-automated Program for Indexing Helices”

Andrew Ward, Research Technician – The Department of Cell Biology, The Scripps Research Institute, La Jolla, CA

The indexing of helical arrays for image analysis remains a difficult task and often the rate-limiting step in data processing.  A new set of procedures, supported by a graphical user interface, has been developed to confront the difficulties of indexing.  I will demonstrate the uses and potential of this semi-automated helical indexing package using a real example from helical arrays of a bacterial membrane protein.

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