Abstract:
This invention relates to the glycoprotein v gene. Specifically, this invention discloses the sequence and structure of the glycoprotein v gene and the amino acid sequence of the glycoprotein v polypeptide. In addition, the evolutionary relationship of the glycoprotein v gene with other glycoproteins is described and several uses of the isolated glycoprotein v gene are shown.
Abstract:
Defined constructs of modified human platelet-derived growth factor receptor polypeptides are provided. Extracellular region domain structures are identified and modifications and combinatorial rearrangements of the receptor segments are provided. Both cell bound and soluble forms of modified segments are made available, as are methods for assays using them, allowing for screening or ligand analogues.
Abstract:
Methods and compositions are provided for treating platelet-associated ischemic syndromes utilizing oligopeptides corresponding to regions of the platelet GPIIIa protein. The oligopeptides can be used to block platelet aggregation for numerous applications, and can serve in immunogen to raise receptor-specific antibodies.
Abstract:
The present invention describes a direct interaction between myosin and the cytoplasmic domain of membrane proteins, particularly the phosphorylated cytoplasmic domains of the beta -subunit of integrins. The invention provides methods of identifying agents which block integrin binding to myosin, methods of using agents which block integrin binding to myosin to modulate biological and pathological processes, and provides agents that block integrin mediated binding to myosin and thereby modulate related cellular or cellular component movement.
Abstract:
A method for selectively inhibiting a kinase is disclosed, which comprises contacting a composition containing a kinase with a compound of formula (I), wherein: R1 is lower alkyl, lower hydrocarbyl, aryl lower alkyl, heteroaryl lower alkyl, 5- or 6-membered heterocyclic aromatic, polyaromatic, polyaromatic carbonyl, polyheteroaromatic or polyheteroaromatic carbonyl; R2 is lower alkyl, lower hydrocarbyl, aryl lower alkyl, heteroaryl lower alkyl, 5- or 6-membered heterocyclic aromatic, lower hydrocarboyl, 5- or 6-membered heterocyclic aromatic carbonyl, polyaromatic or polyheteroaromatic; R3 is H or lower alkyl; R5 is H, lower alkyl, lower hydrocarbyl, aryl lower alkyl, heteroaryl lower alkyl, 5- or 6-membered heterocyclic aromatic, halogen, or cyano; and R6 is H or lower hydrocarboyl.
Abstract translation:公开了选择性抑制激酶的方法,其包括将含有激酶的组合物与式(I)化合物接触,其中:R 1是低级烷基,低级烃基,芳基低级烷基,杂芳基低级烷基,5-或6- 多芳基,多芳基羰基,多杂芳基或多杂芳基羰基; R 2是低级烷基,低级烃基,芳基低级烷基,杂芳基低级烷基,5-或6-元杂环芳族,低级烃基,5-或6-元杂环芳族羰基,多芳族或多杂芳族; R3是H或低级烷基; R5是H,低级烷基,低级烃基,芳基低级烷基,杂芳基低级烷基,5-或6-元杂环芳族,卤素或氰基; R6为H或低级烃基。
Abstract:
A process, as shown in the figure, for producing a highly purified preparation of an inhibited form of an activated blood factor entails providing a partially purified preparation containing the blood factor of interest, treating the partially purified preparation to convert the blood factor to an inhibited activated form in a single step, and then purifiying the resulting inhibited activated blood factor.
Abstract:
Methods are provided for assaying the function (e.g., activation) of signal-transducing receptors on cells. The methods are useful for identifying compounds that are agonists or antagonists of receptor function. The assays utilize a two-antibody sandwich assay employing an immobilized first antibody that specifically binds and captures the receptor of interest along with any tightly associated proteins or polypeptides and a second antibody directed against (i) an epitope of the receptor that is characteristic of the activated but not the unactivated state, (ii) an epitope of a protein or molecule characteristically bound to activated receptor but not to unactivated receptor, or (iii) an epitope of the receptor that is characteristic of the unactivated but not the activated state. In one embodiment, the level of binding of the second antibody is determined and correlated with the presence of activated receptor, and thus with activation in response to the treatment received by the cells. The methods provided by the invention will find particular use for detecting activation of tyrosine kinase growth factor receptors.
Abstract:
The DNA encoding the cell surface receptor for thrombin has been cloned and sequenced. The availability of this DNA permits the recombinant production of thrombin receptor which can be produced at cell surfaces and is useful in assay systems both for the detection of thrombin and for the evaluation of candidate thrombin agonists and antagonists. Further, the elucidation of the structure of the thrombin receptor permits the design of agonist and antagonist compounds which are useful diagnostically and therapeutically. The availability of the thrombin receptor also permits production of antibodies specifically immunoreactive with the receptor per se or with specific regions thereof which are also useful diagnostically or therapeutically.