Abstract:
A high density DNA array comprising a patterned surface, said surface comprising a pattern of small DNA binding regions separated by a non-DNA binding surface, wherein the DNA binding regions comprise DNA capture chemistry and the non-DNA binding surface does not have the DNA capture chemistry wherein more than 50% of the DNA binding regions in the array have single informative DNA species.
Abstract:
The present invention is directed to methods and compositions for long fragment read sequencing. The present invention encompasses methods and compositions for preparing long fragments of genomic DNA, for processing genomic DNA for long fragment read sequencing methods, as well as software and algorithms for processing and analyzing sequence data.
Abstract:
The present invention is directed to methods and compositions for acquiring nucleotide sequence information of target sequences. In particular, the present invention provides methods and compositions for improving the efficiency of sequencing reactions by using fewer labels to distinguish between nucleotides and by detecting nucleotides at multiple detection positions in a target sequence.
Abstract:
The present invention is directed to methods and compositions for long fragment read sequencing. The present invention encompasses methods and compositions for preparing long fragments of genomic DNA, for processing genomic DNA for long fragment read sequencing methods, as well as software and algorithms for processing and analyzing sequence data.
Abstract:
Imaging systems are provided for high speed, high resolution imaging of biochemical materials. In an example embodiment, an imaging system comprises an objective lens component, a line generator, a digital camera, a positioning stage, and a scan mirror. The line generator generates a line of light that is scanned across a portion of a substrate that is mounted on the positioning stage. The positioning stage moves the substrate in a particular direction that is substantially normal to an optical axis of the objective lens component. The camera collects an image of the portion of the substrate through the objective lens component. The scan mirror moves in coordination with the positioning stage, while the line of light is being scanned across the portion of the substrate and the substrate is being moved in the particular direction, in order to keep the image still with respect to the camera while the image is being collected by the camera.
Abstract:
This application discloses methods of producing a DNA strand for sequencing, as well as genetic constructs, libraries, and arrays using DNA strands produced according to these methods. The application also discloses methods of sequencing using the DNA strands, genetic constructs, libraries, and arrays produced. In certain aspects, DNA being sequenced includes a target sequence and at least one adaptor sequence.
Abstract:
The present invention is related generally to analysis of polynucleotides, particularly polynucleotides derived from genomic DNA. The invention provides methods, compositions and systems for such analysis. Encompassed by the invention are arrays of polynucleotides in which the polynucleotides have undergone multiple rounds of amplification in order to increase the strength of signals associated with single polynucleotide molecules.
Abstract:
Methods for interpreting absolute copy number of complex tumors and for determining the copy number of a genomic region at a detection position of a target sequence in a sample are disclosed. In certain aspects, genomic regions of a target sequence in a sample are sequenced and measurement data for sequence coverage is obtained. Sequence coverage bias is corrected and may be normalized against a baseline sample. Hidden Markov Model (HMM) segmentation, scoring, and output are performed, and in some embodiments population-based no-calling and identification of low-confidence regions may also be performed. A total copy number value and region-specific copy number value for a plurality of regions are then estimated.
Abstract:
A method and associated system for imaging high density biochemical arrays comprises one or more imaging channels that share a common objective lens and a corresponding one or more time delay integration-type imaging cameras with optical alignment mechanisms that permit independent inter-channel and intra-channel adjustment of each of four degrees: X, Y, rotation and scale. The imaging channels are configured to independently examine different spectra of the image of the biochemical arrays.
Abstract:
Various short reads can be grouped and identified as coming from a same long DNA fragment (e.g., by using wells with a relatively low-concentration of DNA). A histogram of the genomic coverage of a group of short reads can provide the edges of the corresponding long fragment (pulse). The knowledge of these pulses can provide an ability to determine the haploid genome and to identify structural variations.