Mechanisms of protein and virus crystal growth: An atomic force microscopy study of Canavalin crystallization

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The evolution of surface morphology and step dynamics during growth of single crystals of the protein Canavalin and of the cubic satellite tobacco mosaic virus crystals (STMV) have been investigated by in situ atomic force microscopy. These two crystals were observed to grow by very different mechanisms. Growth of Canavalin occurs on complex vicinal hillocks formed by multiple, independently acting screw dislocations. Small cluster were observed on the terraces. STMV on the other hand, was observed to grow by 2D nucleation of islands. No dislocations were found on the crystal. The results are used to determine the growth mechanisms and ... continued below

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17 p.

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Land, T.A.; De Yoreo, J.J.; Malkin, A.J.; Kutznesov, Y.G. & McPherson, A. March 10, 1995.

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The evolution of surface morphology and step dynamics during growth of single crystals of the protein Canavalin and of the cubic satellite tobacco mosaic virus crystals (STMV) have been investigated by in situ atomic force microscopy. These two crystals were observed to grow by very different mechanisms. Growth of Canavalin occurs on complex vicinal hillocks formed by multiple, independently acting screw dislocations. Small cluster were observed on the terraces. STMV on the other hand, was observed to grow by 2D nucleation of islands. No dislocations were found on the crystal. The results are used to determine the growth mechanisms and estimate fundamental materials parameters. The images also illustrate the important mechanism of defect incorporation and provide insight to the processes that limit the growth rate and uniformity of these crystals.

Physical Description

17 p.

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INIS; OSTI as DE95014365

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  • 6. ICCG, The Hague (Netherlands), 18-23 Jun 1995

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  • Other: DE95014365
  • Report No.: UCRL-JC--120183
  • Report No.: CONF-9506203--1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 85918
  • Archival Resource Key: ark:/67531/metadc783060

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  • March 10, 1995

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • Feb. 17, 2016, 2:21 p.m.

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Land, T.A.; De Yoreo, J.J.; Malkin, A.J.; Kutznesov, Y.G. & McPherson, A. Mechanisms of protein and virus crystal growth: An atomic force microscopy study of Canavalin crystallization, article, March 10, 1995; California. (digital.library.unt.edu/ark:/67531/metadc783060/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.