Grail, Inc.

Agilent Technologies, Inc.

Affymetrix, Inc.

Life Technologies Corporation

Srinka Ghosh

Rongsu Qi

Arash Jamshidi

Samuel S Gross

Oliver Claude Venn

M Cyrus Maher

Seyedmehdi Shojaee

Hamed Amini

Alexander P Fields

Scott C Benson

John Frederick Corson

Brian Reed

Bo U Curry

Herbert F Cattell

Devin Dressman

Chieh-Yuan Li

Abraham Rosenbaum

Scott D Connell

Andi Broka

Craig Obergfell

David Joun

Farooq A Siddiqui

The present description provides a cancer assay panel for targeted detection of cancer-specific methylation patterns. Further provided herein includes methods of designing, making, and using the cancer assay panel for diagnosis of cancer.

Methylation markers and targeted methylation probe panel

Methods are provided to improve the positive predictive value for cancer detection using cell-free nucleic acid samples. The methods can include the use of at least two assays. The assays can vary, for example, with respect to sensitivity, specificity, sequencing depth, analyte, and cost. An exemplary method can be used to provide an initial cancer assay with high sensitivity and a follow-up assay with high specificity in detecting cancer.

Methods and systems for screening for conditions

In some embodiments, the disclosure relates generally to compositions, comprising a single reaction mixture containing a plurality of different populations of discrete supports, and a plurality of different populations of target nucleic acids. The single reaction mixture can contain a first population of beads; a second population of beads; a first population of target nucleic acids, where at least two different target nucleic acids in the first population of target nucleic acids can bind to a bead in the first population of beads; and a second population of target nucleic acids, where at least two different target nucleic acids in the second population of target nucleic acids can bind to a bead in the second population of beads. The single reaction mixture can be employed to monoclonally amplify the first target nucleic acids on the first beads, and monoclonally amplify the second target nucleic acids on the second beads.

Multiplex nucleic acid amplification

Methods of identifying changes in genomic DNA copy number are disclosed. This disclosure provides methods for detecting chromosomal aberrations in a subject using Hidden Markov modeling. In some cases, methods provided herein use de novo sequence assembly to detect chromosomal aberrations in a subject. The methods can be used to detect copy number changes in cancerous tissue compared to normal tissue. The methods can be used to diagnose cancer and other diseases associated with chromosomal anomalies.

Methods and systems for analyzing nucleic acid sequences using mappability analysis and de novo sequence assembly

Methods for estimating genomic copy number and loss of heterozygosity using Hidden Markov Model based estimation are disclosed.

Methods for identifying DNA copy number changes using hidden markov model based estimations

Biopolymeric array scanners that are capable of automatically selecting a dye specific scale factor to employ for a plurality of different dyes, as wells as methods for making and using the same, are provided. In many embodiments, the actual dye specific scale factor automatically selected by the scanner is one that is equal to a preset 'master' scale factor, so that the scanner reads any supported dye using the same constant scale factor. The dye specific scale factor selection is typically made by reference to a collection of nominal scale factors for each member of the plurality of dyes. In using the subject scanners, a user simply inputs the one or more dyes being used in a given array assay, and the scanner automatically reads the array using an automatically chosen dye specific scale factor for the selected dyes. Also provided are methods of obtaining collections of nominal scale factors and computer readable mediums comprising the same. The subject invention finds use in a variety of different applications, including both genomics and proteomics applications.

Biopolymeric array scanners capable of automatic scale factor selection for a plurality of different dyes, and methods for making and using the same

A method and system for estimating the background signal over an arbitrarily-sized region of a scanned image of a molecular array, including a background region surrounding the ROI corresponding to the feature. A bit mask is generated, based on a molecular-array, feature-based data set that includes pixel-based intensities and a list of features, including feature coordinates and feature ROI radii, to indicate those pixels in the scanned image of the molecular array corresponding to background, and those pixels in the scanned image of the molecular array corresponding to features and ROIs. An integrated intensity for a background region of arbitrary size and shape can be efficiently determined by selecting pixels within the background region that are indicated to be background pixels in the bit mask. By selecting background anuli of sufficient size to overlap with the background anuli of neighboring features, a relatively continuous function of background-signal-verusus-position can be obtained across the surface of a molecular array in order to examine non-local, background-signal-related phenomena.

Method and system for measuring a molecular array background signal from a continuous background region of specified size

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San Francisco, CA, United States of America

Srinka Ghosh