Controlled synthesis of peptide mixtures using mixed resins
First Claim
1. A method of preparing a mixture of peptides having different amino acid sequences, which mixture contains retrievable and analyzable amounts of each peptide, comprising:
- (a) dividing an amount of a mixture of amino acyl or peptide derivatized resins into a plurality of subamounts;
(b) coupling a different single amino acid with each of the subamounts of resin to obtain a plurality of different peptide resins the coupling being carried out under conditions such that it is driven to substantial completion with each subamount; and
(c) combining known amounts of the different peptide resins together to obtain the mixture of peptides;
which mixture contains retrievable and analyzable amounts of each of the peptide resins.
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Abstract
A method of preparing a mixture of peptides having a known composition and containing a peptide of a desired amino acid sequence is disclosed. The method involves three essential steps. First a given amount of a mixture of amino acyl or peptide derivatized resin is divided into a number of pools with each pool containing an equal molar amount of the resin mixture. Second a different single amino acid is coupled to the resin mixture in each of the pools and the coupling reaction is driven to completion. The peptide mixtures in each of the pools are then mixed together to obtain a complex peptide mixture containing each peptide in retrievable and analyzable amounts. The steps can be repeated to lengthen the peptide chains and methods can be employed to retrieve the desired peptide from the mixture and carry out analyses such as the determination of the amino acid sequence.
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Citations
25 Claims
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1. A method of preparing a mixture of peptides having different amino acid sequences, which mixture contains retrievable and analyzable amounts of each peptide, comprising:
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(a) dividing an amount of a mixture of amino acyl or peptide derivatized resins into a plurality of subamounts; (b) coupling a different single amino acid with each of the subamounts of resin to obtain a plurality of different peptide resins the coupling being carried out under conditions such that it is driven to substantial completion with each subamount; and (c) combining known amounts of the different peptide resins together to obtain the mixture of peptides;
which mixture contains retrievable and analyzable amounts of each of the peptide resins. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of preparing a mixture of peptides which mixture contains substantially equal molar amounts of a plurality of different known peptides, comprising:
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(a) providing a plurality of pools each containing a mixture of amino acyl or peptide derivatized resins, each of which is present in substantially equal molar amounts; (b) adding a different amino acid to each of the pools, the amino acid being added in an amount and under conditions so as to provide a substantially complete coupling reaction with all the resins in each pool to obtain different peptides in substantially equal molar amounts in each pool; and (c) combining substantially equal molar ( amounts of different peptides together to obtain a mixture of peptides which mixture contains substantially equal molar amounts of the different peptides. - View Dependent Claims (23, 24, 25)
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Specification