摘要:
The invention generally relates to polymerases for efficient and controlled sequencing-by-synthesis reactions. In certain embodiments, the invention provides a polymerase enzyme including at least one mutation that enhances ability of the polymerase as compared to a wild-type polymerase to incorporate a nucleotide into a nascent strand of DNA or cDNA including at least one modified nucleotide.
摘要:
The invention provides methods and devices for detecting, enumerating or identifying target nucleic acid molecules using immobilized capture probes and single molecule sequencing techniques.
摘要:
Methods for high speed, high throughput analysis of polynucleotide sequences, and apparatuses with which to carry out the methods are provided in the invention.
摘要:
The invention provides methods for sequencing a polynucleotide comprising stopping an extension cycle in a sequence by synthesis reaction before the reaction has run to near or fill completion.
摘要:
The present invention relates to apparatus, systems, and methods for analyzing biological samples. The apparatus, systems, and methods can involve using a vacuum source to pull microfluidic volumes through analytical equipment, such as flow cells and the like. Additionally, the invention involves using optical equipment in conjunction with the analytical equipment to analyze samples and control the operation thereof.
摘要:
A method of increasing the spatial uniformity of the detected intensity of a beam of light from a laser in a system including the laser and a light detector. In one embodiment the method includes the steps of generating a beam of light with the laser; and moving the beam of light and the light detector relative to each other, such that the detector averages the spatial intensity of the beam of light over time. In another embodiment the invention relates to a system for increasing the detected spatial uniformity of the intensity of a beam of light. In one embodiment the system comprises a light detector; a laser source for generating the beam of light; and a means for moving the beam of light and the detector relative to one another such that the detector averages the intensity of the light beam over time.
摘要:
The invention provides methods for correcting misincorporation of a nucleotide in a primer during a sequencing-by-synthesis reaction by using both a polymerase substantially lacking in exonuclease activity and an enzyme, preferably a polymerase, having exonuclease activity.
摘要:
The invention provides methods for improving the accuracy of a sequencing-by-synthesis reaction by sequencing at least a portion of a template and at least a portion of template complementary sequence.
摘要:
A hydrocarbyldithiomethyl-modified compound of the Formula: R1—O—CH2—S—S—R2 or a salt thereof wherein R1 is an organic molecule and R2 is a hydrocarbyl is useful for protecting and/or blocking hydroxyl groups in organic molecules such as nucleotides. The hydrocarbyldithiomethyl-modified compounds can also be used for chemically synthesizing oligonucleotides and for sequencing nucleic acid compounds.