alpha globulin

protein

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June 18, 2026

Quick Summary

Alpha globulin is a type of protein found in blood plasma and serum. It is one of the major classifications of proteins, with alpha, beta, and gamma globulins being identified. Alpha and beta globulins primarily function as transport proteins and serve as substrates for other substances.1

Globulins are essential proteins found in both seed plants and animal fluids, where they act as enzymes, antibodies, and structural proteins. In human blood serum, globulins constitute about one-third of the total protein content, with alpha-globulins making up approximately 1.5%. The alpha-globulin fraction is a complex mixture, including lipoproteins and mucoproteins like orosomucoid and haptoglobin.12

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haptoglobin
…a colourless protein of the α-globulin fraction of human serum (liquid portion of blood plasma after the clotting factor fibrinogen has been removed) that transports hemoglobin freed from destroyed red blood cells to the reticuloendothelial system, where it is broken down. Three common types—numbered 1-1, 2-1, and 2-2—and three uncommon…
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…a colourless protein of the α-globulin fraction of human serum (liquid portion of blood plasma after the clotting factor fibrinogen has been removed) that transports hemoglobin freed from destroyed red blood cells to the reticuloendothelial system, where it is broken down. Three common types—numbered 1-1, 2-1, and 2-2—and three uncommon…
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globulin
Alpha and beta globulins are transport proteins, serve as substrates upon which other substances are formed, and perform other diverse functions. Gamma globulins have a vital role in natural and acquired immunity to infection. See also gamma globulin.
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Alpha and beta globulins are transport proteins, serve as substrates upon which other substances are formed, and perform other diverse functions. Gamma globulins have a vital role in natural and acquired immunity to infection. See also gamma globulin.
Read More