Canavalin and
Lysozyme Rhombohedral and Hexagonal
These synthetic organic crystals have been grown under conditions of zero gravity. Photos supplied by Alex McPherson, University of California, Irvine.
o Canavalin is a seed storage protein from Jack Beans having a molecular weight of 147,000. Crystals 1, 4, 5, 7 and 9 are rhombohedral (space group R3), 6 is hexagonal (space group P63), and 2 and 10 have attributes of both space groups. (chapter 4)
o Lysozyme is a defensive protein from hen eggs having a molecular weight of 14,500. It degrades bacterial cell walls. The crystals are tetragonal (space group P4). (chapter 4)
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