主权项 |
1. A method comprising the steps of:
(a) using a first PCR to amplify human immunoglobulin heavy and light chain nucleotide sequences from a cDNA library made from a sample of human peripheral blood mononuclear cells obtained from a human donor previously determined to possess antibodies specific for target antigens of interest, wherein a set of leader-specific primers that amplify at least 90% of the human immunoglobulin V region genes cDNA library is used in the PCR amplification; (b) isolating the amplification products from the first PCR step; (c) creating a first set of constructs by inserting the isolated amplification products from the first PCR step into expression vectors; and (d) introducing the first set of constructs into a first set of host cells to create a first library of human immunoglobulin nucleotide sequences; wherein the set of leader-specific primers comprises a first polynucleotide which binds under stringent hybridization conditions to the complement of the nucleic acid sequence of SEQ ID NO: 1, a second polynucleotide which binds under stringent hybridization conditions to the complement of the nucleic acid sequence of SEQ ID NO: 23, a third polynucleotide which binds under stringent hybridization conditions to the complement of the nucleic acid sequence of SEQ ID NO 32, a fourth polynucleotide which binds under stringent hybridization conditions to the complement of the nucleic acid sequence of SEQ ID NO 34, and a fifth polynucleotide which binds under stringent hybridization conditions to the complement of the nucleic acid sequence of SEQ ID NO 57. |