摘要:
The invention relates to a method of determining the mutational load of a gene library obtained by random mutagenesis of a particular gene of interest and means for implementing same, comprising the following steps: a) preparation of an abacus that links the mutational load (CM) of a gene library obtained by random mutagenesis of a model gene to the fraction of mutated model genes observed in said library; b) random mutagenesis of the model gene that was used to prepare the abacus in step (a) and of the gene of interest, in order to produce the corresponding mutated gene libraries; c) determination of the mutational load (CM) of the gene library obtained from the model gene in step (b) using the abacus established in step (a); and d) application of a correction factor (CF) to the mutational load (CM) of the mutated model gene library determined in step (C), in order to determine the mutational load (CM) of the library of mutated genes of interest from step (b).
摘要:
Method of preparing fragments for shuffling using DNA repair enzymes. Repair enzymes can be used to repair damaged and mismatched residues to reduce level of mutation in fragments, or can themselves create fragments when used without sufficient DNA polymerase. Invention further includes reaction mixtures created by or during the method, sequences created by the method, hosts and vectors containing same, and proteins translated therefrom.
摘要:
The invention concerns a method for detecting a known function, from nucleic acids present in a sample, characterised in that it comprises the following steps: (a) preparing, from the nucleic acids of the sample, nucleic acid molecules comprising the gene(s) coding for the protein(s) corresponding to said function, and the control elements required for the transcription and the translation of said gene(s); (b) in vitro transcription and translation of the nucleic acid molecule prepared in step (a); (c) detecting and/or measuring the function corresponding to the protein(s) produced in step (b).
摘要:
Method of gene shuffling oriented ligation, whereby at least two fragments are adjacently hybridized on an assembly template. Invention is particularly aimed at generating novel polynucleotides that differ in some advantageous respect compared to a reference sequence. Invention further includes sequences created by the method, hosts and vectors containing same, and proteins translated therefrom.
摘要:
The invention concerns a method for detecting a known function, from nucleic acids present in a sample, characterised in that it comprises the following steps: (a) preparing, from the nucleic acids of the sample, nucleic acid molecules comprising the gene(s) coding for the protein(s) corresponding to said function, and the control elements required for the transcription and the translation of said gene(s); (b) in vitro transcription and translation of the nucleic acid molecule prepared in step (a); (c) detecting and/or measuring the function corresponding to the protein(s) produced in step (b).
摘要:
The invention concerns a method for determining the activity in vitro of a substance using a functional test, characterised in that it consists in detecting and/or measuring the variation of a known function corresponding to one or several proteins produced in vitro in the presence and in the absence of said substance or to the substance in the presence or in the absence of one or several proteins produced in vitro.
摘要:
The invention concerns a method for separating and characterising functions potentially present in a biological sample containing nucleic acids, characterised in that it comprises the following steps: (a) preparing nucleic acid fragments from said sample; (b) associating each of said fragments with a carrier molecule; (c) isolating each fragment or a part of each construct formed by a fragment associated with a carrier molecule; (d) treating in vitro each fragment or a part of each construct formed by a fragment associated with a carrier molecule isolated at step (c) to obtain transcripts; (e) testing a function of the transcripts obtained at step (d) or proteins for which they code after said transcripts have been translated.
摘要:
The invention concerns a method for producing in vitro recombined polynucleotide sequences from a bank of polynucleotide sequences, characterised in that it comprises the following steps: fragmenting an initial bank of double-strand polynucleotide sequences; (b) denaturation of the fragments resulting from step (a) optionally in the presence of one or several assembling matrix or matrices; (c) hybridising said fragments with one or several of the assembling matrix or matrices if the latter is/are not present in step (b); (d) ligation of said fragments; (e) optionally cloning said recombined polynucleotide sequences having advantageous properties with respect to one or several reference sequences.