摘要:
Processes are disclosed using the depolymerization of a nucleic acid hybrid to qualitatively and quantitatively analyze for the presence of a predetermined nucleic acid. Applications of those processes include the detection of single nucleotide polymorphisms, identification of single base changes, speciation, determination of viral load, genotyping, medical marker diagnostics, and the like.
摘要:
The present invention relates to single and dual-reporter luminescence assays utilizing general and specific reagents to quench enzyme-mediated reactions. In one embodiment of the invention, a reagent is added to the assay which non-specifically quenches enzyme-mediated luminescent reactions. In another embodiment of the invention, a reagent is added to the assay which simultaneously quenches one enzyme-mediated luminescent reaction while activating another distinct enzyme-mediated luminescent reaction. An assay kit containing specific quench reagents, and the reagents themselves are also disclosed.
摘要:
Methods and compositions are provided for improved kinetics of light production from luciferase activity in beetle luciferase-luciferin reactions. Thus, the invention provides methods, compositions and test kits for assaying samples for the presence of a beetle luciferase or, using a beetle luciferase-luciferin reaction, the presence of ATP. The invention also provides the complex of the coenzyme, Coenzyme A, a beetle luciferase and oxyluciferin in its exited state in the luciferase-luciferin reaction and luciferyl-CoA, the thioester of Coenzyme A and luciferin (D-(-)-2-(6'-hydroxy -2'-benzothiazolyl)-.DELTA..sup.2 -thiazoline-4-carboxylic acid).
摘要:
An isolated polynucleotide encoding a modified luciferase polypeptide and substrates. The OgLuc variant polypeptide has at least 60% amino acid sequence identity to SEQ ID NO: 1 and at least one amino acid substitution at a position corresponding to an amino acid in SEQ ID NO: 1. The OgLuc variant polypeptide has at least one of enhanced luminescence, enhanced signal stability, and enhanced protein stability relative to the corresponding polypeptide of the wild-type Oplophorus luciferase.
摘要翻译:编码修饰的萤光素酶多肽和底物的分离的多核苷酸。 OgLuc变体多肽与SEQ ID NO:1具有至少60%的氨基酸序列同一性,并且在对应于SEQ ID NO:1中的氨基酸的位置具有至少一个氨基酸取代.OgLuc变体多肽具有至少一个 相对于野生型Oplophorus萤光素酶的相应多肽,增强的发光,增强的信号稳定性和增强的蛋白质稳定性。
摘要:
An isolated polynucleotide encoding a modified luciferase polypeptide and substrates. The OgLuc variant polypeptide has at least 60% amino acid sequence identity to SEQ ID NO: 1 and at least one amino acid substitution at a position corresponding to an amino acid in SEQ ID NO: 1. The OgLuc variant polypeptide has at least one of enhanced luminescence, enhanced signal stability, and enhanced protein stability relative to the corresponding polypeptide of the wild-type Oplophorus luciferase.
摘要翻译:编码修饰的萤光素酶多肽和底物的分离的多核苷酸。 OgLuc变体多肽与SEQ ID NO:1具有至少60%的氨基酸序列同一性,并且在对应于SEQ ID NO:1中的氨基酸的位置具有至少一个氨基酸取代.OgLuc变体多肽具有至少一个 相对于野生型Oplophorus萤光素酶的相应多肽,增强的发光,增强的信号稳定性和增强的蛋白质稳定性。
摘要:
A method to prepare synthetic nucleic acid molecules having reduced inappropriate or unintended transcriptional characteristics when expressed in a particular host cell.
摘要:
A modified luciferase protein which is a sensor for molecules including cAMP is provided. The modified luciferase protein includes one or more heterologous amino acid sequences, at least one of which directly or indirectly interacts with cAMP.
摘要:
The present invention is directed to compositions and methods for single-step extraction and detection of ATP levels from microbial cells. The disclosed compositions are formulated to efficiently elicit bioluminescent detection of ATP among a broad variety of different microorganisms using a common single-step reagent composition. Additional luminescence-based methods are provided for identifying other useful extracting agents or for screening compounds for their pharmaceutical or biological effects on microbial cells.