heavy chain(redirected from H-chain)
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Either of the two larger polypeptide chains in an immunoglobulin molecule, consisting of a variable region that contains the antigen-binding portion and a constant region that is specific to each immunoglobulin class or subclass.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Medicine) immunol a type of polypeptide chain present in an immunoglobulin molecule
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