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公开(公告)号:US20250011863A1
公开(公告)日:2025-01-09
申请号:US18769897
申请日:2024-07-11
Applicant: Life Technologies Corporation
Inventor: Dumitru Brinza , Zheng Zhang , Fiona Hyland , Rajesh Gottimukkala
Abstract: Systems and method for determining variants can receive mapped reads, align flow space information to a flow space representation of a corresponding portion of the reference. Reads spanning a position with a potential variant can be evaluated in a context specific manner. A list of probable variants can be provided.
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公开(公告)号:US20210292831A1
公开(公告)日:2021-09-23
申请号:US17225833
申请日:2021-04-08
Applicant: LIFE TECHNOLOGIES CORPORATION
Inventor: Fiona Hyland , Rajesh Gottimukkala
IPC: C12Q1/6869 , G16B30/10 , G16B20/10
Abstract: In one aspect, a system for implementing a copy number variation analysis method, is disclosed. The system can include a nucleic acid sequencer and a computing device in communications with the nucleic acid sequencer. The nucleic acid sequencer can be configured to interrogate a sample to produce a nucleic acid sequence data file containing a plurality of nucleic acid sequence reads. In various embodiments, the computing device can be a workstation, mainframe computer, personal computer, mobile device, etc. The computing device can comprise a sequencing mapping engine, a coverage normalization engine, a segmentation engine and a copy number variation identification engine.
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公开(公告)号:US20150094212A1
公开(公告)日:2015-04-02
申请号:US14503461
申请日:2014-10-01
Applicant: LIFE TECHNOLOGIES CORPORATION
Inventor: Rajesh Gottimukkala , Fiona Hyland , Sowmi Utiramerur , Jeoffrey Schageman , Susan Magdaleno
CPC classification number: G06F19/18 , C12Q1/6858 , C12Q1/6869 , C12Q2535/101 , C12Q2537/143 , C12Q2539/105
Abstract: Systems and method for identifying long deletions can obtain sequencing information for a plurality of amplicons in and around a potential region from a nucleic acid sample. The sequencing information can include a plurality of reads that can be mapped to a reference sequence. Using information, such as where reads map to a reference sequence and relative abundance of reads for the amplicons, structural variants can be identified and a determination can be made if the nucleic acid sample is homozygous or heterozygous for the structural variant.
Abstract translation: 用于识别长缺失的系统和方法可以获得核酸样品的潜在区域内和周围的多个扩增子的测序信息。 排序信息可以包括可以映射到参考序列的多个读取。 使用诸如读数映射到扩增子的参考序列和相对丰度的信息的信息,可以鉴定结构变体,并且如果核酸样品对于结构变体是纯合的或杂合的,则可以进行确定。
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公开(公告)号:US20250084470A1
公开(公告)日:2025-03-13
申请号:US18896256
申请日:2024-09-25
Applicant: Life Technologies Corporation
Inventor: Rajesh Gottimukkala , Amir Marcovitz , Jeoffrey Schageman , Varun Bagai , Jian Gu , James Veitch , Kelli Bramlett , Scott Myrand , Fiona Hyland , Seth Sadis , Paul Williams
IPC: C12Q1/6851 , G06F17/18 , G16B25/10
Abstract: A method for detecting a gene fusion includes amplifying a nucleic acid sample in the presence of primer pool to produce a plurality of amplicons. The primer pool includes primers targeting a plurality of exon-exon junctions of a driver gene. The amplicons correspond to the exon-exon junctions. The amplicons are sequenced and aligned to a reference sequence. The number of reads corresponding to each amplicon is normalized to give a normalized read count. A baseline correction is applied to the normalized read counts for the amplicons to form corrected read counts. A binary segmentation score is calculated for each corrected read count. A predicted breakpoint for the gene fusion is determined based on the amplicon index corresponding to the maximum absolute binary segmentation score. Gene fusion events may be detected in a partner agnostic manner, i.e. without prior knowledge of the specific fusion partner genes or specific breakpoint information.
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公开(公告)号:US20250061970A1
公开(公告)日:2025-02-20
申请号:US18816167
申请日:2024-08-27
Applicant: Life Technologies Corporation
Inventor: Sowmi Utiramerur , Dumitru Brinza , Marcin Sikora , Christian Koller , Earl Hubbell , Chantal Roth , Rajesh Gottimukkala
Abstract: Systems and method for determining variants can receive mapped reads and determine a distribution of matched-filter residuals distribution from a plurality of reads at a homopolymer region. The distribution of matched-filter residuals can be fit to uni-modal and bi-modal models. Based on the model that best fits the distribution of matched-filter residuals, the heterozygosity of the sample and the absence or presence of an insertion/deletion in the homopolymer can be determined.
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公开(公告)号:US20250037797A1
公开(公告)日:2025-01-30
申请号:US18786945
申请日:2024-07-29
Applicant: Life Technologies Corporation
Inventor: Rajesh Gottimukkala , Fiona Hyland
IPC: G16B30/10 , C12Q1/6869 , G16B20/20 , G16B30/00
Abstract: Systems and method for identifying gene fusions can obtain sequencing information for a plurality of amplicons from a nucleic acid sample. The sequencing information can include a plurality of reads that are initially partially mapped to a reference sequence. Fragments may be generated by splitting the partially mapped reads into mapped and unmapped fragments, and the fragments may be remapped to the reference sequence. Gene fusions can be identified based on reads where the first fragment maps to a first gene and the second fragment maps to a second gene.
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公开(公告)号:US10984887B2
公开(公告)日:2021-04-20
申请号:US15921812
申请日:2018-03-15
Applicant: LIFE TECHNOLOGIES CORPORATION
Inventor: Rajesh Gottimukkala , Fiona Hyland , Sowmi Utiramerur , Jeoffrey Schageman , Susan Magdaleno
IPC: C12Q1/6858 , C12Q1/6869 , G16B20/00
Abstract: Systems and method for identifying long deletions can obtain sequencing information for a plurality of amplicons in and around a potential region from a nucleic acid sample. The sequencing information can include a plurality of reads that can be mapped to a reference sequence. Using information, such as where reads map to a reference sequence and relative abundance of reads for the amplicons, structural variants can be identified and a determination can be made if the nucleic acid sample is homozygous or heterozygous for the structural variant.
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公开(公告)号:US20180276335A1
公开(公告)日:2018-09-27
申请号:US15921812
申请日:2018-03-15
Applicant: LIFE TECHNOLOGIES CORPORATION
Inventor: Rajesh Gottimukkala , Fiona Hyland , Sowmi Utiramerur , Jeoffrey Schageman , Susan Magdaleno
IPC: G06F19/18 , C12Q1/6858 , C12Q1/6869
CPC classification number: G16B20/00 , C12Q1/6858 , C12Q1/6869 , C12Q2535/101 , C12Q2537/143 , C12Q2539/105
Abstract: Systems and method for identifying long deletions can obtain sequencing information for a plurality of amplicons in and around a potential region from a nucleic acid sample. The sequencing information can include a plurality of reads that can be mapped to a reference sequence. Using information, such as where reads map to a reference sequence and relative abundance of reads for the amplicons, structural variants can be identified and a determination can be made if the nucleic acid sample is homozygous or heterozygous for the structural variant.
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公开(公告)号:US09953130B2
公开(公告)日:2018-04-24
申请号:US14503461
申请日:2014-10-01
Applicant: LIFE TECHNOLOGIES CORPORATION
Inventor: Rajesh Gottimukkala , Fiona Hyland , Sowmi Utiramerur , Jeoffrey Schageman , Susan Magdaleno
CPC classification number: G06F19/18 , C12Q1/6858 , C12Q1/6869 , C12Q2535/101 , C12Q2537/143 , C12Q2539/105
Abstract: Systems and method for identifying long deletions can obtain sequencing information for a plurality of amplicons in and around a potential region from a nucleic acid sample. The sequencing information can include a plurality of reads that can be mapped to a reference sequence. Using information, such as where reads map to a reference sequence and relative abundance of reads for the amplicons, structural variants can be identified and a determination can be made if the nucleic acid sample is homozygous or heterozygous for the structural variant.
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公开(公告)号:US12139753B2
公开(公告)日:2024-11-12
申请号:US16825238
申请日:2020-03-20
Applicant: LIFE TECHNOLOGIES CORPORATION
Inventor: Rajesh Gottimukkala , Amir Marcovitz , Jeoffrey Schageman , Varun Bagai , Jian Gu , James Veitch , Kelli Bramlett , Scott Myrand , Fiona Hyland , Seth Sadis , Paul Williams
IPC: C12Q1/68 , C12Q1/6851 , G06F17/18 , G16B25/10
Abstract: A method for detecting a gene fusion includes amplifying a nucleic acid sample in the presence of primer pool to produce a plurality of amplicons. The primer pool includes primers targeting a plurality of exon-exon junctions of a driver gene. The amplicons correspond to the exon-exon junctions. The amplicons are sequenced and aligned to a reference sequence. The number of reads corresponding to each amplicon is normalized to give a normalized read count. A baseline correction is applied to the normalized read counts for the amplicons to form corrected read counts. A binary segmentation score is calculated for each corrected read count. A predicted breakpoint for the gene fusion is determined based on the amplicon index corresponding to the maximum absolute binary segmentation score. Gene fusion events may be detected in a partner agnostic manner, i.e. without prior knowledge of the specific fusion partner genes or specific breakpoint information.
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