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.

Date of Patent:
Aug. 10, 2021

Filed:

Dec. 12, 2016
Applicant:

Xcella Biosciences, Inc., Menlo Park, CA (US);

Inventors:

Jennifer R. Cochran, Stanford, CA (US);

Bob Chen, East Palo Alto, CA (US);

Spencer Caleb Alford, Mountain View, CA (US);

Assignee:

xCella Biosciences, Inc., San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N 15/10 (2006.01); G01N 33/68 (2006.01); B01L 3/00 (2006.01); C12N 15/81 (2006.01); G01N 33/53 (2006.01);
U.S. Cl.
CPC ...
C12N 15/1055 (2013.01); B01L 3/50857 (2013.01); C12N 15/1037 (2013.01); C12N 15/1086 (2013.01); C12N 15/81 (2013.01); G01N 33/53 (2013.01); G01N 33/5308 (2013.01); G01N 33/6845 (2013.01); G01N 2500/10 (2013.01); G01N 2500/20 (2013.01);
Abstract

High-throughput methods for screening large populations of variant proteins are provided. The methods utilize large-scale arrays of microcapillaries, where each microcapillary comprises a solution containing a variant protein, an immobilized target molecule, and a reporter element. Immobilized target molecules may include any molecule of interest, including proteins, nucleic acids, carbohydrates, and other biomolecules. The association of a variant protein with a molecular target is assessed by measuring a signal from the reporter element. The contents of microcapillaries identified in the assays as containing variant proteins of interest can be isolated, and cells expressing the variant proteins of interest can be characterized. Also provided are systems for performing the disclosed screening methods.


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