Methods for capturing nascent proteins
First Claim
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20. A method of generating and capturing nascent proteins, comprising:
- (a) providing i) nucleic acid encoding a protein or fragment thereof, ii) a plurality of beads, each bead comprising one or more amplification primers and one or more first binding molecules, and iii) a population of second binding molecules capable of binding to said protein and said first binding molecules;
(b) contacting said beads with said nucleic acid under conditions such that at least a portion of said nucleic acid is amplified to create treated beads comprising immobilized amplified nucleic acid;
(c) contacting said treated beads with said second binding molecules under conditions such that at least a portion of said first binding molecules bind to at least a portion of said second binding molecules so as to create capture beads; and
(d) producing nascent protein or fragments thereof from at least a portion of said immobilized amplified nucleic acid on said capture beads by cell free expression, at least a portion of said nascent protein or fragments thereof interacting with at least a portion of said second binding molecules so as to generate loaded beads comprising captured nascent protein or captured fragments thereof.
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Abstract
Methods of generating and capturing nascent proteins are described, including capturing nascent proteins on the same bead that comprises nucleic acid encoding the protein. The protein or nucleic acid can be sequenced before or after phototransfer to another surface.
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Citations
62 Claims
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20. A method of generating and capturing nascent proteins, comprising:
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(a) providing i) nucleic acid encoding a protein or fragment thereof, ii) a plurality of beads, each bead comprising one or more amplification primers and one or more first binding molecules, and iii) a population of second binding molecules capable of binding to said protein and said first binding molecules; (b) contacting said beads with said nucleic acid under conditions such that at least a portion of said nucleic acid is amplified to create treated beads comprising immobilized amplified nucleic acid; (c) contacting said treated beads with said second binding molecules under conditions such that at least a portion of said first binding molecules bind to at least a portion of said second binding molecules so as to create capture beads; and (d) producing nascent protein or fragments thereof from at least a portion of said immobilized amplified nucleic acid on said capture beads by cell free expression, at least a portion of said nascent protein or fragments thereof interacting with at least a portion of said second binding molecules so as to generate loaded beads comprising captured nascent protein or captured fragments thereof. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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24-1. The method of claim 20, further comprising e) sequencing at least a portion of said nascent protein.
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35. A method of generating and capturing nascent proteins, comprising:
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(a) providing nucleic acid encoding a protein or fragment thereof, a plurality of beads, each bead comprising one or more amplification primers and one or more first binding molecules, a population of second binding molecules capable of binding to said first binding molecules, and a population of third binding molecules capable of binding to said second binding molecules and said protein or fragment thereof; (b) contacting said beads with said nucleic acid under conditions such that at least a portion of said nucleic acid is amplified to create treated beads comprising immobilized amplified nucleic acid; (c) contacting said treated beads with said second binding molecules under conditions such that at least a portion of said first binding molecules bind to at least a portion of said second binding molecules so as to create conjugated beads; (d) contacting said conjugated beads with said third binding molecules under conditions such that at least a portion of said second binding molecules bind to at least a portion of said third binding molecules so as to create capture beads; and (e) producing nascent protein or fragment thereof from at least a portion of said immobilized amplified nucleic acid on said capture beads by cell free expression, at least a portion of said nascent protein or fragment thereof interacting with at least a portion of said third binding molecules so as to generate loaded beads comprising captured nascent protein or captured fragment thereof. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A method of generating and capturing truncated protein, comprising:
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(a) providing nucleic acid encoding a truncated protein, a plurality of beads, each bead comprising one or more amplification primers and one or more first binding molecules, a population of second binding molecules capable of binding to said first binding molecules, and a population of third binding molecules capable of binding to said second binding molecules and capturing said truncated protein; (b) contacting said beads with said nucleic acid under conditions such that at least a portion of said nucleic acid is amplified to create treated beads comprising immobilized amplified nucleic acid; (c) contacting said treated beads with said second binding molecules under conditions such that at least a portion of said first binding molecules bind to at least a portion of said second binding molecules so as to create conjugated beads; (d) contacting said conjugated beads with said third binding molecules under conditions such that at least a portion of said second binding molecules bind to at least a portion of said third binding molecules so as to create capture beads; and (e) producing truncated protein from at least a portion of said immobilized amplified nucleic acid on said capture beads by cell free expression, said third binding molecules capturing at least a portion of said truncated protein so as to generate loaded beads comprising captured truncated protein. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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Specification