X-ray crystallography

X-ray crystallography is a technique in crystallography in which the pattern produced by the diffraction of x-rays through the closely spaced lattice of atoms in a crystal is recorded and then analyzed to reveal the nature of that lattice.

X-ray crystallography. The diffraction pattern of X-rays passing through a pure crystal of a substance.
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[edit] X-ray crystallography 1949-1950
Crick taught himself the mathematical theory of X-ray crystallography.

x-ray crystallography A technique for studying molecular and atomic structure of a substance.
xanthophore A chromatophore containing yellow pigment.
xanthophyll a group of yellow or golden photosynthetic pigments ...

X-ray crystallography has shown that as lysozyme and its substrate unite, each is slightly deformed. The fourth hexose in the chain (ring #4) becomes twisted out of its normal position.

X-ray crystallography [provides] a precise three-dimensional view of a protein by shining beams of x-rays onto the protein [crystal] and then being able to solve the pattern of diffraction where those beams come off of the protein [crystal].

During X-ray crystallography, intense beams pass through and bounce off atoms in the crystal, where they leave a diffraction pattern that can be analyzed to determine the proteins 3-D shape.

Molecular structures represented in this tutorial were obtained by X-ray crystallography. The coordinates for these structures are registered at the Protein Data Bank (1FYA and 1FYB).
External link ...

Protein Data Bank (PDB) A Web storage site for the coordinates of protein structures that have been solved by x-ray crystallography and NMR analysis. With the use of the coordinates, the structures can be accessed for visualization and analysis.

See also: Protein, Proteins, Trans, Sequence, Organ