C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
C12N 15/12 (2006.01) A61K 35/14 (2006.01) A61K 39/395 (2006.01) C07K 14/705 (2006.01) C07K 16/28 (2006.01) C12N 1/21 (2006.01) C12N 5/12 (2006.01) C12N 15/13 (2006.01) C12Q 1/68 (2006.01) G01N 33/564 (2006.01) G01N 33/566 (2006.01) G01N 33/569 (2006.01) G01N 33/577 (2006.01) G01N 33/68 (2006.01) G01N 33/80 (2006.01)
Patent
CA 2127368
2127368 9313784 PCTABS00024 A method of inhibiting platelet transfusion refractoriness comprising administering third-party platelets to a patient whose platelet glycoprotein Ib.alpha. polypeptides expressed from the patient's DNA have been determined to have either threonine or methionine residues, or both, at amino acid residue position 145 thereof, said third-party platelets having expressed at residue position 145 of the glycoprotein Ib.alpha. polypeptide thereof amino acids that are the same as those expressed on the glycoprotein Ib.alpha. polypeptides of the patient's platelets. Also, an antibody, or a fragment thereof, in substantially pure form having as its epitope a domain of glycoprotein Ib.alpha., the affinity of said antibody, or fragment thereof, for said epitope being dependent on the identity of the amino acid residue at position 145 of said glycoprotein. In addition, in a process for storing a supply of platelets for therapeutic use in a patient, the improvement comprising segregating said platelets into three stocks dependent upon whether residue 145 of glycoprotein Ib.alpha. polypeptides of said platelets includes (A) threonine; (B) methionine; or (C) both threonine and methionine. Also, a method of immunoassay comprising contacting a sample of blood, or a composition derived therefrom, with alloantigenic Thr or Met145 form of glycoprotein Ib.alpha., or a fragment thereof, containing said Thr/Met145 locus, and determining whether there is present a complex of antibody and a form of said glycoprotein or a fragment thereof.
Ruggeri Zaverio M.
Ware Jerry L.
Fetherstonhaugh & Co.
The Scripps Research Institute
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