Cornell University

Sloan-kettering Institute for Cancer Research

J David Warren

Scott C Blanchard

Roger Altman

Samuel J Danishefsky

Bin Wu

Zihao Hua

Pengbo Zhou

Krishnakumar Ranganathan

Frederick Maxfield

Zhou Zhou

Jiehao Chen

Gong Chen

Qian Wan

Zhongping Tan

Cindy Kan

Yu Yuan

John D Trzupek

The invention is directed to a method of treating a cancer in an animal and a method of increasing DNA repair activity in an animal. The methods comprise administering to an animal in need thereof an effective amount of a small molecule substance that interferes with the activity of CUL4A, such as a 1,3-benzoxathiol-2-one compound, a pyridine thione compound, a 2,6-diamino-4-thiopyran-3,5-dicarbonitrile compound, or a 1,2,4-triazole-3-thiol compound.

Inhibitors of CRL4 ubiquitin ligase and uses thereof

The invention is directed to compositions that function to remove cholesterol from a mammal suffering from an elevated cholesterol level. The composition includes a polysaccharide having attached thereto at least one cyclic oligosaccharide. In a particular embodiment, the foregoing composition further includes at least one cell-targeting agent. The invention is also directed to methods that utilize these compositions for removing or reducing cholesterol and other lipids in a mammal suffering from an elevated level of cholesterol and/or other lipid.

Compositions and their use for removing cholesterol

The invention is directed to fluorophore-containing compositions and configurations wherein proximity between the fluorophore and one or more protective agents (PAs) modifies the lifetime of fluorescent and/or dark states, their frequency of occurrence, and the total lifetime of fluorescence in order to appropriately modify the photophysical characteristics of the fluorophore. The invention is also directed to methods that utilize these compositions and configurations.

Methods and compositions for altering photophysical properties of fluorophores via proximal quenching

Dye compounds of the formula (1) wherein A is a protective agent group that has a characteristic of modifying the singlet-triplet occupancy of the shown cyanine moiety, and M is a reactive crosslinking group or a group that can be converted to a reactive crosslinking group. Methods for synthesizing the dye compounds and applications for their use are also described. 

Dye compositions, methods of preparation, conjugates thereof, and methods of use

The present invention provides isolated homogeneous polyfunctionalized proteins (e.g., erythropoietin), isolated glycopeptides, and a method for preparing polyfunctionalized peptides and/or proteins via cysteine-free native chemical ligation. In certain embodiments, the invention provides an isolated homogeneous polyfunctionalized protein having the structure (I). In certain other embodiments, the invention provides an isolated glycopeptide having Formula (II). In certain other embodiments, the inventive method is a method for preparing a polyfunctionalized peptide comprising a peptidic backbone made up of four or more amino acids, wherein two or more non-adjacent amino acids are independently substituted with a moiety having the structure (III) -LH. wherein A and L1 are as defined herein.

Compositions comprising homogeneously glycosylated erythropoietin

The present invention provides a method for preparing polyfunctionalized peptides and/or proteins at non-adjacent designated sites via native chemical ligation. In certain embodiments, the inventive method is a method for preparing a polyfunctionalized peptide comprising a peptidic backbone made up of four or more amino acids, wherein two or more non-adjacent amino acids are independently subsituted with a moiety having the structure: wherein A and Lare as defined herein. In certain other embodiments, the inventive method allows the preparation of polyfunctionalized peptides having the general structure: wherein A, R, R, P, R, L, to, s, t and q are as defined herein. 

Method for preparing polyfunctionalized peptides and/or proteins via native chemical ligation

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New York, NY, United States of America

J David Warren