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公开(公告)号：US20240290423A1
公开(公告)日：2024-08-29
申请号：US18429954
申请日：2024-02-01
Applicant: Sequenom, Inc.
Inventor： Mostafa Azab , Michael Sykes , Youting Sun , Amin Mazloom , Taylor Jensen , Mathias Ehrich , Christopher Ellison
Abstract: Technology provided herein relates in part to methods, processes, machines and apparatuses for non-invasive assessment of genetic alterations. In particular, a method is provided for that includes obtaining nucleic acid fragments from a sample from a test subject; sequencing the sequence constructs to obtain sequence reads; demultiplexing the sequence reads to a first and a second subset of sequences reads; generating a first set of consensus reads that correspond to the first nucleic acid fragment based on SMBs associated with the first subset of sequences reads; generating a second set of consensus reads that correspond to the second nucleic acid fragment based on SMBs associated with the second subset of sequences reads; and determining a presence of one or more genetic alterations for the test subject based on the two sets of consensus reads.
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公开(公告)号：US20240233866A1
公开(公告)日：2024-07-11
申请号：US18429893
申请日：2024-02-01
Applicant: SEQUENOM, INC.
Inventor： Yijin Wu , Amin Mazloom , Yang Zhong , Mostafa Azab
Abstract: The present invention relates to systems and methods for non-invasive assessment of genetic variation. In particular, aspects are directed to a computer-implemented method that includes ligating nucleic acid molecules with adapters to generate sequence constructs, sequencing the sequence constructs to obtain sequence reads, generating an alignment computer file including on-target sequence reads and associated genomic positioning data, generating a probe coverage data file for the sample using the on-target sequence reads and the associated genomic positioning data, generating segments and associated probe coverage quantification data for each segment using a segmentation model and the probe coverage data file, identifying genes overlapping with the segments, generating filtered segments based on the identified genes, and determining a presence or absence of a genetic variation in the sample based on the filtered segments.
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公开(公告)号：US11929145B2
公开(公告)日：2024-03-12
申请号：US16477931
申请日：2018-01-22
Applicant: Sequenom, Inc.
Inventor： Mostafa Azab , Michael Sykes , Youting Sun , Amin Mazloom , Taylor Jensen , Mathias Ehrich , Christopher Ellison
Abstract: Technology provided herein relates in part to methods, processes, machines and apparatuses for non-invasive assessment of genetic alterations. In particular, a method is provided for that includes obtaining a set of sequence reads. The sequence reads each include a single molecule barcode (SMB) sequence that is a non-random oligonucleotide sequence. The method further includes assigning the sequence reads to read groups according to a read group signature. The read group signature comprises an SMB sequence and a start and end position of a nucleic acid fragment from the circulating cell free sample nucleic acid. The sequence reads comprising start and end positions and an SMB sequence similar to the read group signature are assigned to a read group. The method further includes generating a consensus for each read group, and determining the presence or absence of a genetic alteration based on the consensus for each read group.
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公开(公告)号：US11929143B2
公开(公告)日：2024-03-12
申请号：US16477923
申请日：2018-01-22
Applicant: Sequenom, Inc.
Inventor： Yijin Wu , Amin Mazloom , Yang Zhong , Mostafa Azab
Abstract: Technology provided herein relates in part to methods, processes, machines and apparatuses for non-invasive assessment of copy number alterations. In particular, a method is provided for determining presence or absence of a copy number alteration for a test subject. The method includes providing a set of sequence reads. The sequence reads may be obtained from circulating cell free sample nucleic acid from a test sample obtained from the test subject, and the circulating cell free sample nucleic acid may be captured by probe oligonucleotides under hybridization conditions. The method further includes determining a probe coverage quantification of the sequence reads for the probe oligonucleotides and determining the presence or absence of a copy number alteration in the circulating cell free sample nucleic acid based on the probe coverage quantification of the sequence reads for the probe oligonucleotides for the test sample.
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