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Isolation and Purification of Proteins definitions

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  • Protein Purification
    Process enabling extraction of a single protein from a complex mixture, crucial for studying individual protein functions.
  • Bacterial Culture
    Growth environment used to produce large amounts of a specific protein for subsequent extraction and study.
  • Fractionation
    Separation of proteins into distinct groups based on properties like size or charge using specialized equipment.
  • Tagging
    Attachment of molecular markers to proteins to alter properties such as size, charge, or affinity for easier separation.
  • Chromatography
    Technique for separating proteins by exploiting differences in size, interactions, or other physical properties.
  • Column Chromatography
    Method using a porous matrix to separate proteins by size as they pass through a vertical column.
  • Affinity Chromatography
    Technique sorting proteins based on their specific interactions with other molecules or ligands.
  • Gel Filtration Chromatography
    Separation method using porous beads to sort proteins by size, allowing smaller proteins to enter beads and elute later.
  • Gel Electrophoresis
    Technique separating proteins according to their charge-to-mass ratio by applying an electric field through a gel.
  • Protein Solution
    Mixture containing various proteins extracted from cells, tissues, or organisms prior to purification.
  • Fraction
    Portion of a protein solution collected after separation, containing proteins with similar properties.
  • Isolation
    Obtaining a single type of protein free from other cellular components for detailed study.
  • Affinity
    Tendency of a protein to bind specifically to certain molecules, used to facilitate selective purification.
  • Charge-to-Mass Ratio
    Characteristic influencing protein movement during gel electrophoresis, determined by both electrical charge and size.
  • Kilodalton
    Unit of molecular mass commonly used to describe the size of proteins during separation and analysis.