Menlo Park, CA, United States
Menlo Park, CA, United States

Pacific Biosciences is a biotechnology company founded in 2004 that develops and manufactures systems for gene sequencing and some novel real time biological observation. They describe their platform as single molecule real time sequencing , based on the properties of zero-mode waveguides. Their first commercial product, the PacBio RS, was sold to a limited set of customers in 2010 and was commercially released in early 2011. A new version of the sequencer called the PacBio RS II was released in April 2013. On 25 September 2013 a partnership between Pacific Biosciences and Roche Diagnostics was announced for the development of in vitro diagnostic products using the technology, with Roche providing $75 million in the deal. Wikipedia.


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Patent
Pacific Biosciences | Date: 2016-09-08

Provided are compositions comprising recombinant DNA polymerases that include amino acid substitutions, insertions, deletions, and/or exogenous features that confer modified properties upon the polymerase for enhanced single molecule sequencing. Such properties include increased resistance to photodamage, and can also include enhanced metal ion coordination, reduced exonuclease activity, reduced reaction rates at one or more steps of the polymerase kinetic cycle, decreased branching fraction, altered cofactor selectivity, increased yield, increased thermostability, increased accuracy, increased speed, increased readlength, and the like. Also provided are nucleic acids which encode the polymerases with the aforementioned phenotypes, as well as methods of using such polymerases to make a DNA or to sequence a DNA template.


A circuit comprising a substrate with sectors on the substrate is provided, each sector comprising clock and data lines, a controller in electrical communication with the clock and data lines, a counter bias line, an amplifier input line and nano-electronic measurement devices on the substrate. A source of each device is coupled to the counter bias line and a drain of each device is coupled to the amplifier input line to obtain an electrical signal on the drain, the identity of which is determined by electrical interaction between the device and a charge label. Each device drain is gated by a corresponding switch between an on state, in which the drain is connected to the amplifier input line, and an off state, in which the drain is isolated from the amplifier input line. The controller controls switch states responsive to clock signal line pulses and data input line data.


Patent
Pacific Biosciences | Date: 2016-06-28

Optics collection and detection systems are provided for measuring optical signals from an array of optical sources over time. Methods of using the optics collection and detection systems are also described.


Patent
Pacific Biosciences | Date: 2016-08-03

Real time electronic sequencing methods, devices, and systems are described. Arrays of nanoFET devices are used to provide sequence information about a template nucleic acid in a polymerase-template complex bound to the nanoFET. A sequencing reaction mixture comprising nucleotide analogs having conductivity labels is introduced to the array of nanoscale electronic elements comprising nanoFETs under conditions of polymerase mediated nucleic acid synthesis. The polymerase enzyme template complex is attached to the gate of the nanoFET in an orientation whereby the nucleotide exit region of the polymerase enzyme is directed toward the gate of the nanoFET. Methods for producing nanoFET arrays are provided.


Patent
Pacific Biosciences | Date: 2016-09-21

Methods, compositions, and systems are provided for characterization of modified nucleic acids. In certain preferred embodiments, single molecule sequencing methods are provided for identification of modified nucleotides within nucleic acid sequences. Methods are provided that include linking forward and reverse strands of a double stranded segment to form circular template molecules, and obtaining sequence data from the circular template molecule to identify modified bases, for example including the use of bisulfite treatment. Modifications detectable by the methods provided herein include chemically modified bases, enzymatically modified bases, abasic sites, non-natural bases, secondary structures, and agents bound to a template nucleic acid.


Patent
Pacific Biosciences | Date: 2017-01-04

The present invention provides compounds, methods and systems for sequencing nucleic acid using single molecule detection. Using labelled NPs that exhibit charge-switching behaviour, single-molecule DNA sequencing in a microchannel sorting system is realized. In operation, sequencing products are detected enabling real-time sequencing as successive detectable moieties flow through a detection channel. By electricity sorting charged molecules, the cleaved product molecules are detected in isolation without interference from unincorporated NPs and without illuminating the polymerase-DNA complex.


Patent
Pacific Biosciences | Date: 2016-10-25

Computer implemented methods for improving the assembly of sequence data are provided. in preferred embodiments, these methods increase the efficiency of assembly of sequence datasets from complex samples, such as genomes having repetitive regions.


Patent
Pacific Biosciences | Date: 2016-09-20

Compositions, methods and systems are provided for isolating DNA having a modified or unnatural base. Circular DNA fragments, each comprising a double stranded DNA central region and single stranded regions on the ends of the double stranded regions, are obtained. Some of the fragments have one or more modified or unnatural base. The DNA fragments are treated with a primer and a polymerase such that the polymerase extends the primer to copy at least one of the strand of the double stranded region. This results in rendering the other strand single stranded. A binding protein or antibody that is specific to the modified or unnatural base is then used to isolate strands containing the modified or unnatural bases. Methods for loading such complexes onto substrates and for single molecule sequencing of such complexes are also provided.


Patent
Pacific Biosciences | Date: 2016-11-17

Methods, compositions, and systems for distributing nucleic acids into array regions are provided. The methods, compositions, and systems utilize nucleic acid condensing agents to increase efficiency of distribution of the nucleic acids into the array regions. Various methods for facilitating distribution of the nucleic acids to the array regions are provided.


Patent
Pacific Biosciences | Date: 2017-05-24

Compositions and methods for nucleic acid sequencing include template constructs that comprise double stranded portions in a partially or completely contiguous constructs, to provide redundant sequence determination through one or both of sequencing sense and antisense strands, and iteratively sequencing the entire construct multiple times. Additional sequence components are also optionally included within such template constructs. Methods are also provided for the use and preparation of these constructs as well as sequencing compositions for their application.

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