Engineered immunoglobulin heavy chain-light chain pairs and uses thereof
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United States of America Patent
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Mar 13, 2018
Grant Date -
Jul 17, 2014
app pub date -
Nov 27, 2013
filing date -
Nov 28, 2012
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Abstract
The present invention provides heterodimer pairs comprising a first heterodimer and a second heterodimer wherein each heterodimer comprises an immunoglobulin heavy chain or fragment thereof and an immunoglobulin light chain. At least one of the heterodimers comprises amino acid modifications in the CH1 and/or CL domains, amino acid modifications in the VH and/or VL domains or a combination thereof. The modified amino acid residues are part of the interface between the light chain and heavy chain and are modified in order to create preferential pairing between each heavy chain and a desired light chain such that when the two heavy chains and two light chains of the heterodimer pair are co-expressed in a mammalian cell, the heavy chain of the first heterodimer preferentially pairs with one of the light chains rather than the other. Likewise, the heavy chain of the second heterodimer preferentially pairs with the second light chain rather than first.
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