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:
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 method for selectively inhibiting a kinase is disclosed, which comprises contacting a composition containing a kinase with a molecule of formula (I) wherein R1 is H, lower alkyl, or lower alkanoyl; R2 is H, lower alkyl, or lower alkanoyl; R3 and R4 together represent a cis double bond or -O- or each of R3 and R4 independently represents H or OR; R5 is =O, =S, or -H, -OR; R6 and R7 together represent a double bond or -O- or each of R6 and R7 independently represents H or OR; R8 and R9 together represent a double bond or -O- or each of R8 and R9 independently represents H or OR; and each R independently represents H, lower alkyl, or lower alkanoyl.
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:
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:
On décrit des produits de recombinaison de polypeptides modifiés récepteurs du facteur de croissance dérivé de plaquettes humaines. Des structures de domaines des régions extracellulaires sont identifiées et des réagencements combinatoires des segments récepteurs sont décrits. Des formes solubles ainsi que des formes à liaison cellulaire de segments modifiés sont disponibles, ainsi que des procédés de titrage les utilisant, permettant la détection d'analogues de ligand.
Abstract:
A method for selectively inhibiting a kinase is disclosed, which comprises contacting a composition containing a kinase with a molecule of formula (I) wherein R1 is H, lower alkyl, or lower alkanoyl; R2 is H, lower alkyl, or lower alkanoyl; R3 and R4 together represent a cis double bond or -O- or each of R3 and R4 independently represents H or OR; R5 is =O, =S, or -H, -OR; R6 and R7 together represent a double bond or -O- or each of R6 and R7 independently represents H or OR; R8 and R9 together represent a double bond or -O- or each of R8 and R9 independently represents H or OR; and each R independently represents H, lower alkyl, or lower alkanoyl.
Abstract:
A method for selectively inhibiting a kinase is disclosed, which comprises contacting a composition containing a kinase with a molecule of formula (I) wherein R1 is H, lower alkyl, or lower alkanoyl; R2 is H, lower alkyl, or lower alkanoyl; R3 and R4 together represent a cis double bond or -O- or each of R3 and R4 independently represents H or OR; R5 is =O, =S, or -H, -OR; R6 and R7 together represent a double bond or -O- or each of R6 and R7 independently represents H or OR; R8 and R9 together represent a double bond or -O- or each of R8 and R9 independently represents H or OR; and each R independently represents H, lower alkyl, or lower alkanoyl.