Abstract:
Disclosed are methods for identifying high affinity adaptor molecules that bind to both a circulating antibody and a target molecule and redirect the specificity of the circulating antibody to the target molecule. Exemplary high affinity adaptor molecules are also provided.
Abstract:
A method of providing a subject polypeptide variant with improved stability compared with a parent subject polypeptide, employing translation and selection using an RNA expression system, wherein two or more stability selection pressures are applied simultaneously during translation, two or more stability selection pressures are applied simultaneously during selecting, or at least one stability selection pressure is applied during translation and continues to be applied during selecting, and at least one further stability selection pressure is applied during selecting.
Abstract:
Provided are linkers suitable for preparing a conjugate of a nucleic acid and a peptide as a translation product thereof in a reconstituted cell-free translation system in genotype-phenotype mapping (display methods), said linkers comprising a single-stranded structure region having a side chain base pairing with the base at the 3′-end of an mRNA at one end and a peptidyl acceptor region containing an amino acid attached to an oligo RNA consisting of a nucleotide sequence of ACCA via an ester bond at the other end, characterized in that the ester bond is formed by using an artificial RNA catalyst. Also provided are display methods using [mRNA]-[linker]-[peptide] conjugates assembled via such linkers.
Abstract:
A method of providing a subject polypeptide variant with improved stability compared with a parent subject polypeptide, employing translation and selection using an RNA expression system, wherein two or more stability selection pressures are applied simultaneously during translation, two or more stability selection pressures are applied simultaneously during selecting, or at least one stability selection pressure is applied during translation and continues to be applied during selecting, and at least one further stability selection pressure is applied during selecting.
Abstract:
This invention relates generally to systems and methods for identifying and selecting, desired proteins or nucleic acid molecules by linking mRNA, with known or unknown sequences, to its translated protein to form a cognate pair. The cognate pair is selected based upon desired properties of the protein or the nucleic acid. This method also includes the evolution of a desired protein or nucleic acid molecule by amplifying the nucleic acid portion of the selected cognate pair, introducing variation into the nucleic acid, translating the nucleic acid, attaching the nucleic acid to its protein to form a second cognate pair, and re-selecting this cognate pair based upon desired properties. Modified mRNAs operable to crosslink to tRNAs are also provided. Methods of producing a psoralen monoadduct or a crosslink are also provided.
Abstract:
The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
Abstract:
The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having the desired activity using a change in the optical properties of the genetic elements. The invention enables the in vitro evolution of nucleic acids and proteins by repeated mutagenesis and iterative applications of the method of the invention.
Abstract:
This invention relates generally to systems and methods for identifying and selecting, desired proteins or nucleic acid molecules by linking mRNA, with known or unknown sequences, to its translated protein to form a cognate pair. The cognate pair is selected based upon desired properties of the protein or the nucleic acid. This method also includes the evolution of a desired protein or nucleic acid molecule by amplifying the nucleic acid portion of the selected cognate pair, introducing variation into the nucleic acid, translating the nucleic acid, attaching the nucleic acid to its protein to form a second cognate pair, and re-selecting this cognate pair based upon desired properties. Modified MRNAs operable to crosslink to tRNAs are also provided. Methods of producing a psoralen monoadduct or a crosslink are also provided.
Abstract:
Disclosed herein are methods for immobilizing a peptide or protein on a solid support. The method generally includes the following steps: (a) providing one or more templates attached to a solid support, wherein the one or more templates include (i) an RNA encoding a peptide and (ii) a peptide acceptor-linker linked to the RNA; and (b) subjecting the one or more templates to conditions that support translation and attachment of said peptide to said peptide acceptor, thereby synthesizing the one or more peptides on the solid support. Also disclosed herein are solid supports having at least one RNA-protein fusion component immobilized thereon, methods for generating protein arrays, and methods for screening molecules using these arrays.
Abstract:
Engineered mRNA useful in producing libraries of engineered mRNAs, polypeptide-engineered mRNA conjugates and diverse encoded polypeptide libraries, as well as novel ribozyes that join an mRNA to the translation product of the mRNA and methods of identifying members of diverse encoded polypeptide libraries which exhibit a desired activity. Also described are polypeptide-nucleic acid tag conjugates, methods of producing the conjugates and uses therefor.