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Protein sequencing by computer graphics

D Tsernoglou, G A Petsko, A T Tu

    Biochimica Et Biophysica Acta
    |April 25, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Computer graphics successfully determined a sea snake neurotoxic protein

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    Area of Science:

    • Structural biology
    • Computational chemistry
    • Biophysics

    Background:

    • Determining protein structure is crucial for understanding biological function.
    • Electron density maps provide a basis for structural analysis.
    • Sea snake neurotoxins are important pharmacological targets.

    Purpose of the Study:

    • To determine the complete three-dimensional structure of a sea snake neurotoxic protein.
    • To evaluate the efficacy of computer graphics in solving protein structures.
    • To refine existing protein sequence data.

    Main Methods:

    • Utilized a computer graphics system for model fitting.
    • Analyzed a 2.2 A resolution electron density map.
    • Compared the derived sequence with the published chemical sequence.

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    Main Results:

    • The complete protein sequence was determined with high accuracy.
    • Identified two potential errors in the previously published sequence.
    • Achieved structure solution solely through computer graphics, without physical models.

    Conclusions:

    • Computer graphics provide a powerful and efficient tool for protein structure determination.
    • This method offers high resolution and accuracy in sequence and structure elucidation.
    • The approach is valuable for validating and correcting existing protein sequence data.