Abstract: Provided herein are methods, compositions and kits to extract and relatively enrich by physical separation or amplification short base pair nucleic acid in the presence of a high background of genomic material (e.g., host or maternal nucleic acids).
Type:
Grant
Filed:
August 18, 2016
Date of Patent:
May 26, 2020
Assignee:
SEQUENOM, INC.
Inventors:
Carolyn R. Hoyal-Wrightson, Andreas Braun, Karsten E. Schmidt
Abstract: Provided are compositions and processes that utilize genomic regions that are differentially methylated between a mother and her fetus to separate, isolate or enrich fetal nucleic acid from a maternal sample. The compositions and processes described herein are particularly useful for non-invasive prenatal diagnostics, including the detection of chromosomal aneuploidies.
Type:
Grant
Filed:
February 9, 2017
Date of Patent:
April 7, 2020
Assignee:
Sequenom, Inc.
Inventors:
Mathias Ehrich, Anders Olof Herman Nygren, Tyler Jacob Jensen
Abstract: The present invention relates to an in vitro method for detecting methylated DNA comprising (a) coating a container with a polypeptide capable of binding methylated DNA; (b) contacting said polypeptide with a sample comprising methylated and/or unmethylated DNA; and (c) detecting the binding of said polypeptide to methylated DNA. In a preferred embodiment, said method further comprises step (d) analyzing the detected methylated DNA by sequencing. Another aspect of the present invention is a kit for detecting methylated DNA according to the methods of the invention comprising (a) a polypeptide capable of binding methylated DNA; (b) a container which can be coated with said polypeptide; (c) means for coating said container; and (d) means for detecting methylated DNA.
Abstract: Provided herein are compositions and methods for analysis of nucleic acids, including, methods and compositions for genotyping, haplotyping, sequencing and performing other genetic and epigenetic analyses on nucleic acids, for example. In some embodiments, methods and compositions suitable for whole-genome sequencing on single molecules of nucleic acid are provided. In some embodiments, analysis of single molecules of nucleic acid are performed in conjunction with nanopores and/or nanopore devices.
Abstract: Described herein are products and processes for nucleic acid quantification, which are in part useful for detecting and determining the nucleotide sequence of rare nucleic acids (i.e., low copy number nucleic acids) in a sample. Such products and processes are useful for reducing the dynamic range among different nucleic acid species.
Abstract: Technology provided herein relates in part to methods, processes, machines and apparatuses for determining sequences of nucleotides for nucleic acid templates in a nucleic acid sample. The technology provide herein also relates in part to methods, processes, machines and apparatuses for counting nucleic acid templates. Nucleic acid templates of a sample are tagged with nonrandom oligonucleotide adapters that include predetermined non-randomly generated sequences. The use of these nonrandom oligonucleotide adapters provides an efficient method to reduce sequencing errors, and increase the sensitivity of detection of low-frequency single nucleotide alterations.
Abstract: Provided herein are methods, processes, systems and apparatuses for non-invasive assessment of a chromosome aneuploidy in a fetus according to a comparison of ratios of counts of sequence reads mapped to certain chromosomes. Also provided herein are methods, processes, systems and apparatuses for non-invasive assessment of a copy number variation in a fetus.
Abstract: The present invention relates to an in vitro method for detecting methylated DNA comprising (a) coating a container with a polypeptide capable of binding methylated DNA; (b) contacting said polypeptide with a sample comprising methylated and/or unmethylated DNA; and (c) detecting the binding of said polypeptide to methylated DNA. In a preferred embodiment, said method further comprises step (d) analyzing the detected methylated DNA by sequencing. Another aspect of the present invention is a kit for detecting methylated DNA according to the methods of the invention comprising (a) a polypeptide capable of binding methylated DNA; (b) a container which can be coated with said polypeptide; (c) means for coating said container; and (d) means for detecting methylated DNA.
Abstract: Provided herein are methods, processes and apparatuses for determining the fraction of fetal nucleic acid in a test sample derived from a pregnant female with improved accuracy and/or precision. Also, provided herein are methods, processes and apparatuses for determining the presence or absence of a genetic variation in a fetus with improved accuracy and/or precision. Certain methods include using fetal fraction measurements for the determination of a fetal genetic variation.
Type:
Grant
Filed:
March 14, 2013
Date of Patent:
February 5, 2019
Assignee:
Sequenom, Inc.
Inventors:
Cosmin Deciu, Zeljko Dzakula, John Allen Tynan, Grant Hogg
Abstract: Improved solid supports and methods for analyzing target nucleotide sequences are provided herein. Certain improvements are directed to efficiently preparing nucleic acids that comprise nucleotide sequences identical to or substantially identical to one or more target nucleotide sequences, or complement thereof. The prepared nucleic acids include a reference sequence that facilitates sequence analysis. The solid supports and methods provided herein minimize the number of steps required by published sequence analysis methodologies, and thereby offer improved sequence analysis efficiency.
Abstract: Systems, methods, and apparatus for determining at least a portion of fetal genome are provided. DNA fragments from a maternal sample (maternal and fetal DNA) can be analyzed to identify alleles at certain loci. The amounts of DNA fragments of the respective alleles at these loci can be analyzed together to determine relative amounts of the haplotypes for these loci and determine which haplotypes have been inherited from the parental genomes. Loci where the parents are a specific combination of homozygous and heterozygous can be analyzed to determine regions of the fetal genome. Reference haplotypes common in the population can be used along with the analysis of the DNA fragments of the maternal sample to determine the maternal and paternal genomes. Determination of mutations, a fractional fetal DNA concentration in a maternal sample, and a proportion of coverage of a sequencing of the maternal sample can also be provided.
Type:
Grant
Filed:
May 15, 2013
Date of Patent:
October 9, 2018
Assignees:
The Chinese University of Hong Kong, Sequenom Inc.
Inventors:
Yuk Ming Dennis Lo, Kwan Chee Chan, Wai Kwon Rossa Chiu, Charles Cantor