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. Author manuscript; available in PMC: 2011 Oct 27.
Published in final edited form as: Arch Biochem Biophys. 2010 Mar 3;500(1):3–12. doi: 10.1016/j.abb.2010.02.008

Figure 2.

Figure 2

Some historical figures highlighting the state of crystallographic technology at the time the CCP structure was solved. A) One of the early area detectors developed by Xuong and colleagues at UCSD (cira mid-1970s). B) The type of optical comparator used to build the first CCP model. C) One of the early 2.6Å electron density maps of CCP. This is a 5Å thick section looking along the heme plane.