Humanized light chain mice
First Claim
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1. A method for making an antibody that binds to an antigen of interest, wherein the method comprises:
- (a) exposing a mouse to an antigen of interest,(b) isolating one or more B lymphocytes of the mouse, wherein the one or more B lymphocytes express an antibody that binds the antigen of interest, wherein the expressed antibody that binds the antigen of interest includes an immunoglobulin light chain comprising a human immunoglobulin λ
light chain variable domain and a mouse immunoglobulin light chain constant domain, and comprises an immunoglobulin heavy chain comprising a human immunoglobulin heavy chain variable domain and a mouse immunoglobulin heavy chain constant domain,(c) identifying a nucleic acid sequence that encodes the human immunoglobulin λ
light chain variable domain of the antibody that binds the antigen of interest, and(d) employing the nucleic acid sequence of (c) with a human immunoglobulin light chain constant region nucleic acid sequence to make a human immunoglobulin light chain for the antibody that binds the antigen of interest;
wherein the mouse comprises(i) an insertion of one or more human Vλ
gene segments and one or more human Jλ
gene segments upstream of a mouse immunoglobulin light chain constant region gene, wherein the one or more human Vλ
gene segments and one or more human Jλ
gene segments are operably linked to the mouse immunoglobulin light chain constant region gene,(ii) an insertion of one or more human VH gene segments, one or more human DH gene segments and one or more human JH gene segments upstream of a mouse immunoglobulin heavy chain constant region gene, wherein the one or more human VH gene segments, one or more human DH gene segments and one or more human JH gene segments are operably linked to the mouse immunoglobulin heavy chain constant region gene, and(iii) an ectopic nucleotide sequence that encodes an ADAM6 protein or a functional fragment thereof.
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Abstract
Non-human animals, tissues, cells, and genetic material are provided that comprise a modification of an endogenous non-human heavy chain immunoglobulin sequence and that comprise an ADAM6 activity functional in a mouse, wherein the non-human animals express a human immunoglobulin heavy chain variable domain and a cognate human immunoglobulin λ light chain variable domain.
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20 Claims
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1. A method for making an antibody that binds to an antigen of interest, wherein the method comprises:
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(a) exposing a mouse to an antigen of interest, (b) isolating one or more B lymphocytes of the mouse, wherein the one or more B lymphocytes express an antibody that binds the antigen of interest, wherein the expressed antibody that binds the antigen of interest includes an immunoglobulin light chain comprising a human immunoglobulin λ
light chain variable domain and a mouse immunoglobulin light chain constant domain, and comprises an immunoglobulin heavy chain comprising a human immunoglobulin heavy chain variable domain and a mouse immunoglobulin heavy chain constant domain,(c) identifying a nucleic acid sequence that encodes the human immunoglobulin λ
light chain variable domain of the antibody that binds the antigen of interest, and(d) employing the nucleic acid sequence of (c) with a human immunoglobulin light chain constant region nucleic acid sequence to make a human immunoglobulin light chain for the antibody that binds the antigen of interest; wherein the mouse comprises (i) an insertion of one or more human Vλ
gene segments and one or more human Jλ
gene segments upstream of a mouse immunoglobulin light chain constant region gene, wherein the one or more human Vλ
gene segments and one or more human Jλ
gene segments are operably linked to the mouse immunoglobulin light chain constant region gene,(ii) an insertion of one or more human VH gene segments, one or more human DH gene segments and one or more human JH gene segments upstream of a mouse immunoglobulin heavy chain constant region gene, wherein the one or more human VH gene segments, one or more human DH gene segments and one or more human JH gene segments are operably linked to the mouse immunoglobulin heavy chain constant region gene, and (iii) an ectopic nucleotide sequence that encodes an ADAM6 protein or a functional fragment thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification