Abstract: The invention proposes a device for analyzing nucleic acid molecules (M), comprising: —a bead (20), on which one molecule can be anchored at one end, —a surface (520), on which the molecule can be anchored at the other end, —an actuator (30), adapted to cause the bead to move relative to said surface in one direction, —a sensor (50), adapted to measure a distance between the bead and the surface, the device further comprising a well (11), having an axis (X-X) extending along the direction of motion of the bead and a bottom (110) formed by said surface, said well being filled with electrically conductive solution (40), and receiving the bead, the sensor being adapted to measure an impedance of the well, depending on a distance between the bead and the surface, to determine, the distance between the bead and the surface.

Abstract: The invention relates to a chimeric protein comprising three covalently linked domains including a RNA-guided DNA endonuclease, a flexible peptide linker, and a switchable receptor binding domain. The endonuclease activity depends on the uncaging of a caged specific ligand of said switchable receptor binding domain. Methods for inducing nuclear translocation of the chimeric protein and inducing the modification of an endogenous gene in a eukaryotic cell are also disclosed.

Abstract: The invention proposes a device for analyzing nucleic acid molecules (M), comprising: —a bead (20), on which one molecule can be anchored at one end, —a surface (520), on which the molecule can be anchored at the other end, —an actuator (30), adapted to cause the bead to move relative to said surface in one direction, —a sensor (50), adapted to measure a distance between the bead and the surface, the device further comprising a well (11), having an axis (X-X) extending along the direction of motion of the bead and a bottom (110) formed by said surface, said well being filled with electrically conductive solution (40), and receiving the bead, the sensor being adapted to measure an impedance of the well, depending on a distance between the bead and the surface, to determine, the distance between the bead and the surface.

Abstract: The invention proposes a device for analyzing nucleic acid molecules (M), comprising: —a bead (20), on which one molecule can be anchored at one end, —a surface (520), on which the molecule can be anchored at the other end, —an actuator (30), adapted to cause the bead to move relative to said surface in one direction, —a sensor (50), adapted to measure a distance between the bead and the surface, the device further comprising a well (11), having an axis (X-X) extending along the direction of motion of the bead and a bottom (110) formed by said surface, said well being filled with electrically conductive solution (40), and receiving the bead, the sensor being adapted to measure an impedance of the well, depending on a distance between the bead and the surface, to determine, the distance between the bead and the surface.

Abstract: The invention proposes a device for analyzing nucleic acid molecules (M), comprising: —a bead (20), on which one molecule can be anchored at one end, —a surface (520), on which the molecule can be anchored at the other end, —an actuator (30), adapted to cause the bead to move relative to said surface in one direction, —a sensor (50), adapted to measure a distance between the bead and the surface, the device further comprising a well (11), having an axis (X-X) extending along the direction of motion of the bead and a bottom (110) formed by said surface, said well being filled with electrically conductive solution (40), and receiving the bead, the sensor being adapted to measure an impedance of the well, depending on a distance between the bead and the surface, to determine, the distance between the bead and the surface.

Abstract: The present invention relates to a method for determining whether a protein binds to a specific DNA sequence. This method is useful in particular for identifying modifications to the DNA sequence (e.g. methylations) via the binding of proteins that specifically recognize those modifications (e.g. antibodies), but also to identify the binding sequence on DNA of a variety of proteins.

Abstract: The present invention relates to a method for the determination of a nucleic acid sequence by physical manipulation. In particular, the said method comprises the steps of denaturing a double-stranded nucleic acid molecule corresponding to the said nucleic acid sequence by applying a physical force to the said molecule; and detecting a blockage of the renaturation of the double-stranded nucleic acid molecule. More specifically, the method comprises the steps of denaturing a double-stranded nucleic acid molecule corresponding to the said nucleic acid sequence by applying a physical force to the said molecule; providing a single-stranded nucleic acid molecule; renaturing the said double stranded nucleic acid molecule in the presence of the said single-stranded nucleic acid molecule; and detecting a blockage of the renaturation of the double-stranded nucleic acid.

Abstract: The present invention relates to a fast method for the detection and the quantification of a nucleic acid, DNA or RNA. Specifically, the invention provides a method for detecting and quantifying the presence of a specific nucleic acid molecule which is based on physical and electronic treatments. The method of the invention is particularly useful for applications as diverse as detection of chromosomal abnormal distributions or gene expression analysis.

Abstract: The present invention relates to a method for the determination of a nucleic acid sequence by physical manipulation. The method is based on the precise determination of the localization of the replicating fork on the template by measuring the physical distance between one end of the molecule and the fork. This allows the determination of the physical location of the site where a pause or a blockage of the replication occurs, and deducing therefrom information on the sequence of the nucleic acid.

Abstract: The present invention relates to a method for the determination of a nucleic acid sequence by physical manipulation. The method is based on the precise determination of the localization of the replicating fork on the template by measuring the physical distance between one end of the molecule and the fork. This allows the determination of the physical location of the site where a pause or a blockage of the replication occurs, and deducing therefrom information on the sequence of the nucleic acid.

Abstract: The present invention relates to a method for the determination of a nucleic acid sequence by physical manipulation. In particular, the said method comprises the steps of denaturing a double-stranded nucleic acid molecule corresponding to the said nucleic acid sequence by applying a physical force to the said molecule; and detecting a blockage of the renaturation of the double-stranded nucleic acid molecule. More specifically, the method comprises the steps of denaturing a double-stranded nucleic acid molecule corresponding to the said nucleic acid sequence by applying a physical force to the said molecule; providing a single-stranded nucleic acid molecule; renaturing the said double stranded nucleic acid molecule in the presence of the said single-stranded nucleic acid molecule; and detecting a blockage of the renaturation of the double-stranded nucleic acid.

Abstract: Described herein is a method for determining a nucleic acid sequence, said method comprising: a) denaturing a double-stranded nucleic acid molecule corresponding to the said nucleic acid sequence by applying a physical force to the said molecule; b) providing a single-stranded nucleic acid molecule; c) renaturing the said double stranded nucleic acid molecule in the presence of the said single-stranded nucleic acid molecule; and d) detecting a blockage of the renaturation of the double-stranded nucleic acid.

Abstract: Described herein is a method for determining a nucleic acid sequence, said method comprising: a) denaturing a double-stranded nucleic acid molecule corresponding to the said nucleic acid sequence; b) hybridizing a single-stranded nucleic acid molecule, the primer, with the said denatured double-stranded nucleic acid molecule; c) applying a tension to the hybridized primer/double-stranded nucleic acid molecule obtained in b); d) incubating the hybridized primer/double-stranded nucleic acid molecule obtained in b) with a polymerase in conditions which will lead to at least one pause in replication; and e) determining a position of the said pause in replication with respect to one end of the double-stranded nucleic acid.

Abstract: The present invention relates to a system of nanopore sequencing using nucleic-acid binding proteins wherein the activity of the said protein and the passage of the sequenced nucleic acid molecule through the nanopore are coordinated. In particular, the present invention enables an easy synchronization of nanopore capture with polynucleotide unwinding, which in turn affords an easy way to repeat the whole process of capture and nucleotide characterization.

Abstract: The present invention relates to a method for determining whether a protein binds to a specific DNA sequence. This method is useful in particular for identifying modifications to the DNA sequence (e.g. methylations) via the binding of proteins that specifically recognize those modifications (e.g. antibodies), but also to identify the binding sequence on DNA of a variety of proteins.

Abstract: The present invention relates to a fast method for the detection and the quantification of a nucleic acid, DNA or RNA. Specifically, the invention provides a method for detecting and quantifying the presence of a specific nucleic acid molecule which is based on physical and electronic treatments. The method of the invention is particularly useful for applications as diverse as detection of chromosomal abnormal distributions or gene expression analysis.

Abstract: Described herein is a method for determining a nucleic acid sequence, said method comprising: a) denaturing a double-stranded nucleic acid molecule corresponding to the said nucleic acid sequence; b) hybridizing a single-stranded nucleic acid molecule, the primer, with the said denatured double-stranded nucleic acid molecule; c) applying a tension to the hybridized primer/double-stranded nucleic acid molecule obtained in b); d) incubating the hybridized primer/double-stranded nucleic acid molecule obtained in b) with a polymerase in conditions which will lead to at least one pause in replication; and e) determining a position of the said pause in replication with respect to one end of the double-stranded nucleic acid.

Abstract: Described herein is a method for determining a nucleic acid sequence, said method comprising: a) denaturing a double-stranded nucleic acid molecule corresponding to the said nucleic acid sequence by applying a physical force to the said molecule; b) providing a single-stranded nucleic acid molecule; c) renaturing the said double stranded nucleic acid molecule in the presence of the said single-stranded nucleic acid molecule; and d) detecting a blockage of the renaturation of the double-stranded nucleic acid.

Abstract: The subject of the present invention is a process for aligning a macromolecule (macromolecules) on the surface S of a support, characterized in that the triple line S/A/B (meniscus) resulting from the contact between a solvent A and the surface S and a medium B is caused to move on the said surface S, the said macromolecules having a part, especially an end, anchored on the surface S, the other part, especially the other end, being in solution in the solvent A. The subject of the present invention is also a process for detecting, measuring the intramolecular distance of, separating and/or assaying a macromolecule in a sample in which a process of alignment according to the invention is used.

Abstract: The invention concerns a method for detecting or locating one or several genes of one or several specific A DNA sequence or one or several molecules reacting with DNA on a B DNA characterised in that it consists in: (a) fixing and combing a certain amount of said B DNA on a combing surface; (b) reacting the product of the B combing with one or several probes, linked with the gene(s) or specific A DNA sequences, or with the molecules capable of reacting with DNA; (c) extracting information corresponding to at least one of the following categories: (1) the position of the probes, (2) the distance between the probes, (3) the size of the probes (the total sum of sizes for quantifying the number of hybridised probes) for determining therefrom the presence, the location and/or the amount of genes or specific A DNA sequences. This method can be used in particular for the diagnosis of genetic diseases.