摘要:
Provided herein are methods and arrangements and related cell-free biomolecular breadboards configured to design, build, implement, debug, and/or test a genetic circuit to be operated in a target environment, by testing in a cell-free system under conditions of the target environment, molecular components of the genetic circuit and/or combinations thereof to select the molecular components and/or combinations thereof of a genetic circuit operative in the target environment.
摘要:
The present invention relates to compositions and methods for the detection of target molecules, and the amplification of detectable signals generated by detection assays. More specifically, the present invention relates to methods utilizing catalytic nucleic acid enzymes to generate and/or amplify a signal indicative of the presence of target molecules (e.g. nucleic acids and proteins), and compositions for use in the methods.
摘要:
This invention provides methods and kits useful for determining whether a subject is afflicted with a disorder characterized by the presence of one or more known nucleic acid mutations. The instant methods comprise steps of nucleic acid molecule isolation, amplification, contact with one or more catalytic nucleic acid molecules specifically cleaving a target sequence present either in the case of disorder or wild-type, but not both, and determining cleavage of the amplified segment(s).
摘要:
New binary deoxyribozyme or ribozyme probes and methods are described for nucleic acid analysis, which allows the detection of nucleic acids under mild physiologic conditions with extraordinary specificity and high sensitivity to single nucleotide mismatches without PCR amplification.
摘要:
The present invention provides oligonucleotides and methods for efficient detection of target nucleic acids using rolling circle replication. In one aspect, the oligonucleotides of the invention are characteristic in that they can be circularised without an external ligation template. In another aspect, the oligonucleotides of the invention are characteristic in that they can generate a free 3'end of the target nucleic acid necessary for rolling circle replication. The oligonucleotides and detection methods of the invention are useful e.g. as research tool and for diagnosis.
摘要:
A method for adding a first and a second functional nucleic acid sequence to a reaction mixture, in particular an amplification reaction mixture in a predetermined stoichiometry and/or at a predetermined point in time, said method comprising adding to the reaction mixture an oligonucleotide comprising a first and a second functional nucleic acid sequence separated by a spacer sequence, said spacer sequence comprising a region which, when double stranded, comprises a cleavable region, forming a cleavable double stranded region within the spacer region of said oligonucleotide, and cleaving the double stranded region within said oligonucleotide. Oligonucleotides for use in the method, and comprising a first and a second functional nucleic acid sequence, such as primers or probes used in an amplification reaction, separated by a spacer sequence, is also provided.
摘要:
A novel biosensor comprises at least one fluorophore and at least two quenchers, and is capable of selectively and specifically detecting the presence of an ion in the presence of other ions.
摘要:
The present invention is related to synthetic ribozymes, i.e. ribozymes including a hairpin portion, binding sites for binding to a human papilloma virus (HPV) after viral base 419 or 434, respectively, and cleavage sites for cleaving HPV virus are disclosed. The invention also includes a diagnostic assay for determining the presence of HPV-16 in tissues based on PCR amplification.