Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Blood proteins or globulins – e.g. – proteoglycans – platelet...
Patent
1985-08-08
1988-11-22
Schain, Howard E.
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Blood proteins or globulins, e.g., proteoglycans, platelet...
530808, 530809, 424 858, 435 68, 4351722, 436547, 436548, C07K 300, C12N 1500
Patent
active
047867183
ABSTRACT:
Experiments designed to define the differences between the 21 oncogene of DNA isolated from human bladder cancer cells and its corresponding proto-oncogene are described herein. By a series of in vitro recombinations, the difference was initially isolated to a 350 kb segment of DNA; sequencing defined the difference as a change in the Gly.sup.12 codon causing the p21 protein of the oncogene to contain valine at a location where the p21 protein of the proto-oncogene contained glycine. Assays for detecting carcinogenesis based on such differences are also described. In one type of assay, a restriction enzyme specific for either the altered or non-altered DNA segment of the genes are employed to detect carcinogenesis. In another type of assay, seralogical reagents, such as antibody specific for either p21 protein expressed from the proto-oncogene or oncogene, or a common site therein, are described.
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Bradley Scott M.
Tabin Clifford J.
Weinberg Robert A.
Draper Garnette D.
Massachusetts Institute of Technology
Schain Howard E.
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