The present invention is concerned with materials and methods for nucleic acid and/or protein analysis, including materials and methods for creating and/or analysing mutant libraries. The invention in particular relates to materials and methods for correlating a property of mutants of a target nucleic acid to the respective sequences of the mutants. The invention is particularly useful for analysing saturation mutagenesis libraries and the analysis of sensitivities to chemical or physical conditions, for example temperature stability and solvent stability, and for the analysis of production properties, for example yield or cellular localisation.

A method comprising (A) fragmenting genomic DNA in a state where the interaction of the genomic DNA and molecules interacting therewith is maintained, and (B) bringing genomic DNA into contact with an exogenous molecule capable of binding to a specific endogenous DNA sequence in the genomic DNA. According to the method, with the use of an endogenous DNA sequence present inside or in the vicinity of a target genomic region in cells to be analyzed, any genomic region can be specifically isolated in a state where the interaction of the genomic region and molecules interacting therewith is maintained, without the need of inserting a recognition sequence of an exogenous DNA-binding molecule into the vicinity of the target genomic region in the cells to be analyzed.

This application provides a bead with a covalently attached chemical compound and a covalently attached DNA barcode and methods for using such beads. The bead has many substantially identical copies of the chemical compound and many substantially identical copies of the DNA barcode. The compound consists of one or more chemical monomers, where the DNA barcode takes the form of barcode modules, where each module corresponds to and allows identification of a corresponding chemical monomer. The nucleic acid barcode can have a concatenated structure or an orthogonal structure. Provided are method for sequencing the bead-bound nucleic acid barcode, for cleaving the compound from the bead, and for assessing biological activity of the released compound.

The present disclosure relates to a modified polypeptide, in which the activity of meso-diaminopimelate is weakened, and a method for producing L-threonine using the same.

Provided are methods for screening a desired variant of a target gene in a eukaryotic system. Compositions for screening a desired variant of a target gene are also provided.

Provided herein are methods and compositions relating to glucagon-like peptide-1 receptor (GLP1R) libraries having nucleic acids encoding for a scaffold comprising a GLP1R binding domain. Libraries described herein include variegated libraries comprising nucleic acids each encoding for a predetermined variant of at least one predetermined reference nucleic acid sequence. Further described herein are protein libraries generated when the nucleic acid libraries are translated. Further described herein are cell libraries expressing variegated nucleic acid libraries described herein.

Provided herein are methods and compositions relating to libraries of optimized antibodies having nucleic acids encoding for an antibody comprising modified sequences. Libraries described herein include variegated libraries comprising nucleic acids each encoding for a predetermined variant of at least one predetermined reference nucleic acid sequence. Further described herein are protein libraries generated when the nucleic acid libraries are translated. Further described herein are cell libraries expressing variegated nucleic acid libraries described herein.

Provided herein are methods and compositions relating to libraries of optimized antibodies having nucleic acids encoding for an antibody comprising modified sequences. Libraries described herein include variegated libraries comprising nucleic acids each encoding for a predetermined variant of at least one predetermined reference nucleic acid sequence. Further described herein are protein libraries generated when the nucleic acid libraries are translated. Further described herein are cell libraries expressing variegated nucleic acid libraries described herein.

The present invention relates to polypeptides which are covalently bound to molecular scaffolds such that two peptide loops are subtended between attachment points to the scaffold. In particular, the invention describes peptides which are high affinity binders of IL-17. The invention also includes drug conjugates comprising said peptides, conjugated to one or more effector and/or functional groups, to pharmaceutical compositions comprising said peptide ligands and drug conjugates and to the use of said peptide ligands and drug conjugates in preventing, suppressing or treating a disease or disorder mediated by IL-17.

This disclosure provides intact bacterially derived minicells containing nucleic acids adjuvants or plasmids encoding nucleic acids adjuvants that can produce a desired immune response in target cells. This disclosure further provides methods that employ minicells to deliver nucleic acids adjuvants for use in the treatment of diseases, including neoplastic disease and cancer.