85kilodalton

85 kilodalton refers to a molecular mass of approximately 85,000 Daltons. The Dalton (Da) is a unit of mass used for atoms and molecules, especially for atomic and molecular weights. A kilodalton (kDa) is equal to 1,000 Daltons. Therefore, 85 kilodalton is equivalent to 85,000 Daltons. This unit of measurement is commonly used in biochemistry and molecular biology to express the size of proteins. Proteins are polymers of amino acids, and their mass is determined by the number and type of amino acids they contain. An 85 kDa protein would be considered a medium-sized to large protein. For context, many common proteins, such as hemoglobin, are in the range of 64 kDa, while larger proteins like titin can exceed 3,000 kDa. When researchers refer to a protein of 85 kilodaltons, they are providing a key piece of information about its physical characteristics, which can be important for understanding its function, how it interacts with other molecules, and its potential applications in research or medicine. Electrophoretic techniques, such as SDS-PAGE, are often used to estimate protein molecular weights, and results are typically reported in kilodaltons.