13 results about "Adenosine diphosphate" patented technology

The purpose of the present invention is to provide: a plant having an increased yield of storage tissue; and a method for producing the plant. It was discovered that the yield of storage tissue in a plant can be increased by expressing, in the storage tissue of the plant, a sucrose synthase having a substrate specificity to adenosine diphosphate.

The application belongs to the technical field of molecular biology, and particularly relates to metabolic markers for distinguishing hypertrophic cardiomyopathy and left ventricular hypertrophy and application. The application analyzes the metabolome of hypertrophic cardiomyopathy (HCM) patients, left ventricular hypertrophy (LVH) patients caused by non-hypertrophic cardiomyopathy and healthy people, finds that carnitine C16:2, carnitine C14:0, carnitine C16:0, carnitine C18:0 and carnitine C18:1 are differentially expressed in HCM patients and LVH patients, pyridoxine phosphate, ito acid, adenosine monophosphate, adenosine diphosphate and adenosine triphosphate are differentially expressed in HCM patients and healthy people, lysine base, methyl glutamic acid, acetyl proline, malate semialdehyde and citramalate are differentially expressed in LVH patients and healthy people, and ROC curve analysis shows excellent prediction effect, strong specificity and high sensitivity.

This invention discloses an enzymatic method for preparing (S)-adenosylmethionine. The method uses adenosine diphosphate (ADP) and L-methionine as substrates, reacting them under the combined action of polyphosphate kinase (Ppk) and adenosylmethionine synthase (MAT) to obtain (S)-adenosylmethionine. This method produces a product with high chiral purity and high atom economy, making it more suitable for industrial production.

The application discloses a salt-tolerant adenylate kinase mutant and application thereof. Through modification on an amino acid sequence of a wild-type adenylate kinase (adenylate kinase, EC 2.7.4.3) from Bacillus subtilis (strain 168), three salt-tolerant adenylate kinase mutants are obtained; the mutant adenylate kinase has higher salt tolerance compared with the wild-type adenylate kinase, and can tolerate a salt concentration of 300-2000 mmol / L in an adenosine diphosphate reaction system.

This invention provides a kit for the simultaneous detection of nine flavor nucleotides in livestock and poultry products. The flavor nucleotides are cytidine monophosphate, uridine monophosphate, guanylic acid, inosine monophosphate, adenosine monophosphate, hypoxanthine, inosine, adenosine diphosphate, and adenosine triphosphate. The kit includes: a high-concentration extraction reagent, a standard curve solution, a high-concentration phosphate buffer solution, pH adjustment solution A, and pH adjustment solution B. The high-concentration extraction reagent is perchloric acid; the standard curve solution is a mixed solution of the nine flavor nucleotides; the high-concentration phosphate buffer solution is a solution of potassium dihydrogen phosphate and dipotassium hydrogen phosphate; pH adjustment solution A is sodium hydroxide; and pH adjustment solution B is phosphate. This invention also provides a method for the simultaneous detection of the nine flavor nucleotides using the above kit. This invention enables the simultaneous determination of the content of nine flavor nucleotides in livestock and poultry products. The method is simple, rapid, accurate, and sensitive, and can be used for batch determination, showing good prospects for practical application.

The application discloses a method for preparing 2'-methoxy-uridine triphosphate, which comprises the following steps: taking 2'-methoxy-uridine acid as a substrate, taking adenosine triphosphate as an initial phosphate donor, constructing a phosphate circulation system, adding an enzyme catalyst, and adopting one-pot enzyme method to perform enzyme catalysis reaction, so as to obtain the end product 2'-methoxy-uridine triphosphate. The phosphate circulation system is composed of adenosine triphosphate, adenosine diphosphate and phosphate compounds. The enzyme catalyst catalyzes the dephosphorylation of the phosphate compounds to provide inorganic phosphate to the adenosine diphosphate, and the adenosine triphosphate is regenerated to realize the circulation energy supply. The method adopts high-activity enzyme combination of specific sources, has high conversion rate of the substrate 2'-methoxy-uridine acid, and has high conversion rate of the final 2'-methoxy-uridine triphosphate up to 92.6%, and has the advantages of high synthesis efficiency, simple steps, green environmental protection and controllable cost.

The invention discloses phycocyanin peptide as well as a screening method and application thereof, and belongs to the technical field of bioactive peptides. The peptide sequences of the phycocyanin peptide are ASEIAG, LDSVNR, AEQPQL and AGDASV (Adenosine Diphosphate Syndrome Virus); the screening method specifically comprises the following steps: (1) virtual enzymolysis of phycocyanin; (2) screening the bioactive peptide; and (3) molecular docking. According to the invention, four bifunctional peptides ASEIAG, LDSVNR, AEQPQL and AGDASV, which are brand new in structure, clear in activity and easy to absorb, are accurately excavated from a specific amino acid sequence of phycocyanin through a rational design method in combination with gastrointestinal tract digestion simulation (virtual enzymolysis) and multi-target computer-aided screening (molecular docking); the method can simultaneously aim at two mutually associated pathological links of hypertension and oxidative stress, has the unique advantage of synergistic interaction in the aspect of preventing cardiovascular and cerebrovascular diseases, and breaks through the limitation of a traditional enzymolysis technology; and a brand new core material basis is provided for developing the next generation of functional food or ingredients for reducing blood pressure and resisting oxidation based on precise nutrition.

Metabolic biomarkers and their application in the preparation of diagnostic products for carotid body tumors demonstrate high specificity and sensitivity in diagnostic efficacy. These metabolic biomarkers include at least one of the following substances: S-adenosylmethionine, S-sulfocysteine, cystine, adenosine diphosphate, and lactate.

To provide a plant with increased yield of storage tissue and a method for producing the same. [Solution] In the storage tissue of a plant, a sucrose synthase that has substrate specificity for adenosine diphosphate is expressed, thereby increasing the yield of the storage tissue of the plant.

The present application relates to the field of biological catalysis, and discloses a method for preparing creatine phosphate by immobilized enzyme catalysis, which comprises the following steps: mixing gelatin and a positive charge modifier to obtain a carrier liquid; adding creatine and magnesium salt to a crude creatine kinase solution for pre-incubation to realize conformational locking, then mixing with the carrier liquid and dropping into a low-temperature coagulation bath to solidify into gel microspheres, and then cross-linking and washing to obtain immobilized creatine kinase particles; finally, adding substrates, sodium hexametaphosphate, polyphosphate kinase and immobilized particles into a reaction system for reaction, and then separating and collecting the supernatant to obtain creatine phosphate. The present application protects the three-dimensional conformation of the active center of the enzyme by pre-incubation, uses the positive micro area of the carrier to electrostatically enrich the substrates to accelerate mass transfer, and introduces an auxiliary enzyme to construct an in-situ substrate regeneration system to re-phosphorylate the by-product adenosine diphosphate into adenosine triphosphate. The present application eliminates the feedback inhibition of the product, reduces the cost of raw materials, and improves the overall catalytic efficiency.

Antibodies that interact with FcγRIIa are described. Methods of detecting the amount of FcγRIIa on platelets in a sample using antibodies to FcγRIIa are described. Methods of treating a selected subject at risk of thrombosis with an anti-thrombotic therapy are described involving administering aspirin, cilostazol or an anti-thrombotic agent that is an Adenosine diphosphate (ADP) receptor antagonist and / or a Protease-activated receptor (PAR) antagonist to the selected subject, wherein the subject is selected by determining a level of FcγRIIa expressed on platelets by detecting the amount of FcγRIIa in a sample using antibodies to FcγRIIa. In certain methods, elevated levels of FcγRIIa expression identify the subject as at risk of thrombosis and in need for anti-thrombotic therapy.

The present application relates to the use of cyclic adenosine diphosphate (ADP) ribose hydrolase (CD38) inhibitors and enteroendocrine-pancreatic hormone pathway modulators for preventing or treating diseases and disorders of metabolism.

This invention relates to an in vitro maturation culture medium for giant panda oocytes and its application, belonging to the field of biotechnology. The invention discloses an in vitro maturation culture medium for giant panda oocytes, which simultaneously adds the following three paracrine factors to the basal culture medium: adenosine diphosphate riboylation factor 6 (ARF6); ciliary neurotrophic factor (CNTF); and hepatocyte growth factor (HGF). The invention also provides the application of the aforementioned in vitro maturation culture medium for giant panda oocytes, specifically for the in vitro maturation culture of giant panda oocytes. This invention effectively addresses the shortcomings of existing in vitro oocyte maturation technologies, significantly improves oocyte maturation quality, is simple to operate, and has high safety, providing a key technological reserve for assisted reproduction in giant pandas.