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H chain

noun, Immunology

heavy chain

noun, Immunology
1.
either of an identical pair of Y -shaped polypeptides that, together with the light chains, constitute the antibody molecule.
Also called H chain.
Origin
1960-1965
1960-65
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for h-chain

heavy chain

noun
1.
(immunol) a type of polypeptide chain present in an immunoglobulin molecule
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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h-chain in Medicine

heavy chain heav·y chain (hěv'ē)
n.
One of a pair of polypeptide chains of high molecular weight that are components of an immunoglobin and that serve as the binding sites for antigens. They are separated into five types: gamma, alpha, delta, epsilon, and mu.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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h-chain in Science
heavy chain
  (hěv'ē)   
The larger of the two types of polypeptide chains in an immunoglobulin molecule. A heavy chain consists of an antigen-binding portion having a variable amino acid sequence, and a constant region that is different for each class of imunoglobulin. Each heavy chain is one of a Y-shaped identical pair and is attached along its variable region to a smaller light chain. Compare light chain.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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