Bd Dec 2015 - Jan 2017
Principal Scientist
Natera May 2014 - Dec 2015
Staff Scientist
Natera Jan 2015 - Dec 2015
Principal Scientist
Natera Mar 2012 - Dec 2013
Senior Scientist
Life Technologies Mar 2010 - Nov 2011
Senior Staff Scientist, Enzymologist
Education:
University of Colorado Boulder
Doctorates, Doctor of Philosophy, Chemistry
Bemidji State University
Bachelors, Bachelor of Science, Chemistry
Skills:
Dna Sequencing Biotechnology Molecular Biology Pcr Dna Assay Development Qpcr Genetics Genomics Protein Purification Purification Life Sciences Protein Chemistry Biochemistry R&D Science Sequencing Protein Engineering Lifesciences Protein Expression Cell Proteomics Real Time Polymerase Chain Reaction Enzyme Kinetics High Throughput Screening Microarray Polymerase Chain Reaction Research and Development Research Fluorescence Analysis Genotyping Protein Characterization
Yan Wang - San Francisco CA, US Lei Xi - Foster City CA, US Dennis E. Prosen - Foster City CA, US
Assignee:
Bio-Rad Laboratories, Inc. - Hercules CA
International Classification:
C12P 19/34 C12N 9/12
US Classification:
435 911, 435194, 435183, 435455, 435 691
Abstract:
This invention provides for an improved generation of novel nucleic acid modifying enzymes. The improvement is the fusion of a sequence-non-specific nucleic-acid-binding domain to the enzyme in a manner that enhances the ability of the enzyme to bind and catalytically modify the nucleic acid.
This invention provides for an improved generation of novel nucleic acid modifying enzymes. The improvement is the fusion of a sequence-non-specific nucleic-acid-binding domain to the enzyme in a manner that enhances the ability of the enzyme to bind and catalytically modify the nucleic acid.
Lei Xi - Foster City CA, US Dennis E. Prosen - Foster City CA, US Alexander A. Novikov - Union City CA, US
International Classification:
C12P 19/34 C12N 9/12
US Classification:
435 912, 435194
Abstract:
A modified thermostable Pol B DNA polymerase, produced by a reaction, under essentially aqueous conditions, of a thermostable Pol B DNA polymerase and a modifier reagent of Formula I wherein the reaction results in a thermally reversible inactivation of the thermostable Pol B DNA polymerase activity and the 3′-5′ exonuclease activity, which polymerase is suitable for hot-start PCR. Also disclosed are the method for the modification, a polynucleic acid amplification method and PCR reaction mixture and kit comprising the modified thermostable Pol B DNA polymerase.
Polymerization Of Nucleic Acids Using Activation By Polyphosphorolysis (App) Reactions
Lei (Larry) XI - Foster City CA, US Paul Kenney - Sunnyvale CA, US Zhaochun Ma - Sunnyvale CA, US Dennis Prosen - Foster City CA, US Stephen Hendricks - Los Gatos CA, US Roland Nagel - Santa Cruz CA, US
Assignee:
LIFE TECHNOLOGIES CORPORATION - Carlsbad CA
International Classification:
C12P 19/34
US Classification:
435 912, 435 915, 435 9151
Abstract:
This disclosure relates to methods of performing activation by polyphosphorolysis (APP) reactions using at least one of the polyphosphorylating agents triphosphate, polyphosphate, imidodiphosphate, thiodiphosphate (or μ-monothiopyrophosphate), and related compounds.
- Franklin Lakes NJ, US Katherine Lazaruk - San Jose CA, US Dennis Prosen - San Jose CA, US Ricelle A. Acob - San Jose CA, US Kai Liu - San Jose CA, US
International Classification:
C12N 15/10 C12Q 1/6858 C07K 14/705 C07K 14/725
Abstract:
Disclosed herein include systems, methods, compositions, and kits for immune repertoire profiling. There are provided, in some embodiments, primer panels enabling the determination of the nucleotide sequence of the complete variable region of nucleic acids encoding mouse B cell receptor (BCR) and T cell receptor (TCR) polypeptides. In some embodiments, the method comprises single cell transcriptomic analysis.
- Menlo Park CA, US Sixing Li - Mountain View CA, US Dennis Prosen - Foster City CA, US
International Classification:
C12N 15/10
Abstract:
Disclosed herein include systems, apparatuses, devices, and methods for introducing one or more components into a fluid. A first fluid and a second fluid can be co-injected into a fluidic channel of a flow cell. In some embodiments, the first fluid and a second fluid are immiscible (e.g. an aqueous buffer and a non-aqueous liquid). In some embodiments, the second fluid is less dense than the first fluid.
- San Jose CA, US Katherine Lazaruk - San Jose CA, US Dennis E. Prosen - San Jose CA, US Devon Jensen - San Jose CA, US David Rosenfeld - San Jose CA, US Janice H. Lai - San Jose CA, US James Ghadiali - San Jose CA, US Christina Chang - San Jose CA, US
International Classification:
C12Q 1/6876 C12Q 1/6806 C12Q 1/6853
Abstract:
Disclosed herein include systems, methods, compositions, and kits for determining protein expression and gene expression simultaneously and for sample indexing. In some embodiments, an oligonucleotide associated with a cellular component-binding reagent (e.g., an antibody) comprises one or more of a unique molecular label sequence, a primer adapter, antibody-specific barcode sequence, an alignment sequence, and/or a poly(A) sequence. In some embodiments, the oligonucleotide is associated with the cellular component-binding reagent via a linker (e.g., 5AmMC12).
Compositions And Methods For Detection Of Nucleic Acid Mutations
- San Carlos CA, US Joshua BABIARZ - Castro Valley CA, US Raheleh SALARI - San Carlos CA, US Tudor Pompiliu CONSTANTIN - Berkley CA, US Onur SAKARYA - Redwood City CA, US Dennis PROSEN - Foster City CA, US Alexander OLSON - Fremont CA, US Scott DASHNER - Sunnyvale CA, US Nikolay SERGEEV - Foster City CA, US Matthew Micah HILL - Belmont CA, US
Assignee:
Natera, Inc. - San Carlos CA
International Classification:
C12Q 1/686 C12Q 1/6853 C12Q 1/6886
Abstract:
The invention provides methods and compositions for detecting a mutation in a target gene in a sample of blood or a fraction thereof, including in certain examples, a fraction that includes circulating tumor DNA. The methods can include a tiling PCR reaction, for example a one-sided multiplex tiling reaction. Virtually any type of mutation can be detected with the methods and compositions. In certain embodiments, gene fusions are detected. Improved PCR methods, especially for performing nested multiplex PCR reactions are provided.
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Jim Blasingame with Bob Prosen June 28, 2011
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