Advances in digital topography for characterizing imperfections in protein crystals

Jeffrey J. Lovelace, Cameron R. Murphy, Henry D. Bellamy, Keith Brister, Reinhard Pahl, Gloria E.O. Borgstahl

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


A system which joins digital topography with fine φ-sliced reflection profiling has been developed and applied to cryocrystallography. In this demonstration, fifteen fine φ-sliced reflection profiles with corresponding topographic sequences are evaluated: twelve reflections from a crystal at cryogenic temperatures and three reflections from a room-temperature crystal. The digitally collected data show results comparable with film, albeit at a lower resolution, but are acquired at a substantially higher rate. Additionally, anti-blooming circuitry in the CCD was tested and shown to provide useful data even when pixels were overloaded.

Original languageEnglish (US)
Pages (from-to)512-519
Number of pages8
JournalJournal of Applied Crystallography
Issue number3
StatePublished - Jun 2005

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)


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