The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 1991
Filed:
Jun. 29, 1990
Applicant:
Inventors:
Victoria L Boyd, San Carlos, CA (US);
David H Hawke, Hayward, CA (US);
Assignee:
Applied Biosystems, Inc., Foster City, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07K / ; G01N / ;
U.S. Cl.
CPC ...
436 89 ; 422 61 ; 436178 ; 5253262 ; 5253277 ; 5253283 ; 5253335 ; 5253336 ; 525393 ; 530345 ; 530408 ;
Abstract
A method of C-terminal peptide sequencing. The peptide is reacted with an activated support derivatized with a mixed anhydride of isothiocyanic acid and carboxylic or carbonic acid, under basic conditions. The peptidyl thiohydantoin which forms is separated from the solid support and further reacted with a cleaving agent carried on a second solid support, to release a free C-terminal amino acyl thiohydantoin from the peptide. The free thiohydantoin is analyzed to determine the C-terminal peptide residue. The residual peptide can be recycled through the supports for successive C-terminal residue determinations.