摘要:
The present invention relates to a method for detecting a target biomolecule in a sample comprising a plurality of biomolecules, whereby the target biomolecule is provided with a tag, said tag comprising a catalytic active moiety which catalyses a reaction yielding an insoluble reaction product which precipitates on flexible electrically conductive nanoelectrodes. The precipitation onto said nanoelectrodes causes a change in their electroconductivity which is accessible to electroanalytical methods. The invention relates further to a biochip comprising a solid support with nanoelectrodes attached thereto and probe molecules bound to all or to a plurality of said nanoelectrodes which may be the same or different, a segment of said probe molecules being able to interact specifically with a segment of the target biomolecules.
摘要:
The invention relates to novel electropolymerisable monomers which are to be polymerised in an aqueous solution and comprise: an electropolymerisable pattern selected from acetylene, pyrrols, thiophenes, indols, anilines, azines, p-phenylene vinylenes, p-phenylenes, pyrenes, furanes, selenophenes, pyrridazines, carbazoles, acrylates, methacrylates and the derivatives thereof, and a metalloporphyrine which is substituted by at least two ionised or ionisable entities in an aqueous solution. The invention also relates to a method for the polymerisation of such monomers, to the electroactive probe that can be obtained by the polymerisation of such monomers, and to a method for detecting a target ligand in a biological sample using one such electroactive probe.
摘要:
RNA may be transcribed using a nucleotide reagent as the promoter. The reagent may enable RNA to be transcribed without sequence specification and without protein cofactors, by means of an RNA polymerase that is known to be DNA-dependent such as the RNA polymerase of the phage T7, or by means of new, mutated RNA polymerase with the ability to synthesize a transcription product of polynucleotide matrix with a higher yield when the matrix is RNA than when the matrix is DNA. This type of RNA polymerase can be obtained by effecting mutations on a coding gene for a wild-type RNA polymerase, and then by selecting the mutated RNA polymerase with the ability. The invention can be applied notably to the detection, synthesis or quantification of RNA.
摘要:
The present invention relates to a method for detecting a target biomolecule in a sample comprising a plurality of biomolecules, whereby the target biomolecule is provided with a tag, said tag comprising a catalytic active moiety which catalyses a reaction yielding an insoluble reaction product which precipitates on flexible electrically conductive nanoelectrodes. The precipitation onto said nanoelectrodes causes a change in their electroconductivity which is accessible to electroanalytical methods. The invention relates further to a biochip comprising a solid support with nanoelectrodes attached thereto and probe molecules bound to all or to a plurality of said nanoelectrodes which may be the same or different, a segment of said probe molecules being able to interact specifically with a segment of the target biomolecules.
摘要:
The invention relates to novel pyrrole derivatives of the formula (I) which make it possible to immobilize and address oligonucleotides by electropolymerization. Said invention also relates to thus produced electroactive polymers and to methods for using them for detecting, identifying and dosing analytes in a sampe. (I) wherein R1 is one type of oligonucleotide, Y is S or O, X is a spacer arm selected from —(CH2)—O—, —(CH2) P O—[(CH2)2—O]q—, —(CH2)r; —CO—NR—(CH2)r-0-, —CH2r—NCH3—(CH2)r—O—, —CH2)rCO—NR′—[CH2)2—O]s—, —(CH2)rNCH3[(CH2)2—O] S —, R′ is H or CH3, n is an integer number ranging from 1 to 5, p is an integer number ranging from 1 to 2, q is an integer number ranging from 1 to 4, r is an integer number ranging from 1 to 3, r′ is an integer number ranging from 1 to 3, s is an integer number ranging from 1 to 3, n, p, q, r, r′ and s are identical or different, a pyrrole cycle is substituted in a position 2, 3, 4 or 5.
摘要:
RNA may be transcribed using a nucleotide reagent as the promoter. The reagent may enable RNA to be transcribed without sequence specification and without protein cofactors, by means of an RNA polymerase that is known to be DNA-dependent such as the RNA polymerase of the phage T7, or by means of new, mutated RNA polymerase with the ability to synthesize a transcription product of polynucleotide matrix with a higher yield when the matrix is RNA than when the matrix is DNA. This type of RNA polymerase can be obtained by effecting mutations on a coding gene for a wild-type RNA polymerase, and then by selecting the mutated RNA polymerase with the ability. The invention can be applied notably to the detection, synthesis or quantification of RNA.
摘要:
The nucleotide sequence of Tc100, a gene encoding a new antigenic protein from Trypanosoma cruzi called PTc100, is disclosed. The amino acid sequence of the PTc100 protein is also disclosed, along with the amino acid sequence of the dominant antigenic epitope of the PTc100 protein. The PTc100 protein and Tc100 gene, or a fragment thereof, modified or otherwise, can be used directly or indirectly for the detection of Trypanosoma cruzi, or for the monitoring of an infection generated by T. cruzi in man or animals.
摘要:
Composition comprising two pathogenic and/or infective agents associated with multiple sclerosis, namely a first agent which consists of a human virus possessing reverse transcriptase activity and related to a family of endogenous retroviral elements, or a variant of said virus, and a second agent, or a variant of said second agent, these two pathogenic and/or infective agents originating from the same viral strain chosen from the strains designated, respectively, POL-2 deposited with the ECACC on Jul. 22, 1992 under Accession Number V92072202 and MS7PG deposited with the ECACC on Jan. 8, 1993 under Accession Number V93010816, and from their variant strains.
摘要:
Viral material, in the isolated or purified state, in which the genome comprises a nucleotide sequence chosen from the group including sequences SEQ ID NO:46, SEQ ID NO:51, SEQ ID NO:52, SEQ ID NO:53 and SEQ ID NO:56, their complementary sequences and their equivalent sequences, in particular nucleotide sequences displaying, for any succession of 100 contiguous monomers, at least 50% and preferably at least 70% homology with the said sequences SEQ ID NO:46, SEQ ID NO:51, SEQ ID NO:52, SEQ ID NO:53 and SEQ ID NO:56, respectively, and their complementary sequences.
摘要翻译:分离或纯化状态的病毒物质,其中基因组包含选自SEQ ID NO:46,SEQ ID NO:51,SEQ ID NO:52,SEQ ID NO:53和SEQ ID NO:53的核苷酸序列 SEQ ID NO:46,SEQ ID NO:56,其互补序列及其等同序列,特别是核苷酸序列,显示100个连续单体的任何连续序列,与所述序列SEQ ID NO:46,SEQ ID NO为至少50%,优选至少70% :51,SEQ ID NO:52,SEQ ID NO:53和SEQ ID NO:56及其互补序列。
摘要:
Composition including two pathogenic and/or infective agents associated with multiple sclerosis, namely a first agent which consists of a human virus possessing reverse transcriptase activity and related to a family of endogenous retroviral elements, or a variant of the virus, and a second agent, or a variant of the second agent, these two pathogenic and/or infective agents originating from the same viral strain chosen from the strains designated, respectively, POL-2 deposited with the ECACC on Jul. 22, 1992 under Accession Number V92072202 and MS7PG deposited with the ECACC on Jan. 8, 1993 under Accession Number V93010816, and from their variant strains.