摘要:
The present invention relates to methods and compositions for detecting an interaction between a protein and a ligand, comprising: (i) binding at least one fluorescent molecular rotor to said ligand or protein; and (ii) detecting a change in fluorescence emitted by said fluorescent molecular rotor after contact of the bound fluorescent molecular rotor with the other of said ligand or protein, thereby detecting an interaction between the ligand and the protein, wherein the fluorescent molecular rotor comprises: a rotating ?-bond; an electron-donating moiety; an electron-accepting moiety; and a ?-conjugated linker.
摘要:
There is provided a method for detecting the presence or absence of acrylic acid or its derivatives thereof in a sample, the method comprising the steps of: (a) introducing a probe comprising a diaryltetrazole compound to the sample; (b) exposing said sample to light; and (c) detecting the presence or absence of acrylic acid or its derivatives thereof in the sample based on fluorescence emitted by the sample after step (c).
摘要:
The present application discloses an isolated nucleic acid molecule for detecting the presence of a target nucleic acid sequence and uses thereof, wherein said molecule is capable of forming bimolecular interactions with a target nucleic acid sequence and forms a ternary complex stabilising a detection agent when bound. The detection agent is preferably DFHBI ((Z)-4-(3,5-difluoro-4-hydroxybenzylidene)-1,2-dimethyl-1 H -imidazol-5(4 H )-one. The target nucleic acid is preferably a miRNA sequence. Preferably, the isolated nucleic acid sequence comprises two domains that complementarily bind to the 5' and 3' ends of the target nucleic acid sequence. The isolated nucleic acid sequence also comprises regions of nucleic acids that do not bind with the target nucleic acid sequence and are capable of forming secondary structures, such as stems, stem loops, t-RNA type structures, cloverleaves, tetraloops and pseudoknots. The application further discloses corresponding methods of determining a disease in a subject by using the isolated nucleic acid sequence to detect one or more disease-specific target nucleic acids.
摘要:
There is provided a compound comprising at least two ligands that are individually coupled to a linker, wherein each ligand is independently selected from the group consisting of a substituted benzylguanine derivative, a substituted benzylcytosine derivative, a haloalkyl moiety, a drug, a peptide, a hormone, an inorganic compound and a protein. The compound may be part of an oligomer. The compound may be employed in a method of dimerizing a pair of proteins, which may alter a biological function in a cell. There is also provided a method of forming the compound.
摘要:
The invention relates to cleavable chemistry in general, and in particular, to tunable fluoresence using cleavable linkers present in fluorochrome-quencher conjugates.