User profiles for O. Venn

Oliver Venn

Staff Scientist, GRAIL
Verified email at grailbio.com
Cited by 3083

[HTML][HTML] Sensitive and specific multi-cancer detection and localization using methylation signatures in cell-free DNA

…, KK Steffen, S Tang, JM Toung, A Valouev, O Venn… - Annals of …, 2020 - Elsevier
Background Early cancer detection could identify tumors at a time when outcomes are
superior and treatment is less morbid. This prospective case-control sub-study (from …

[PDF][PDF] Evaluation of cell-free DNA approaches for multi-cancer early detection

A Jamshidi, MC Liu, EA Klein, O Venn, E Hubbell… - Cancer Cell, 2022 - cell.com
In the Circulating Cell-free Genome Atlas (NCT02889978) substudy 1, we evaluate several
approaches for a circulating cell-free DNA (cfDNA)-based multi-cancer early detection (…

High-intensity sequencing reveals the sources of plasma circulating cell-free DNA variants

…, W Abida, K Juluru, I De Bruijn, C Hou, O Venn… - Nature medicine, 2019 - nature.com
… b, Venn diagrams showing the total number of mutations detected in cfDNA and tumor
and their overlap. Top: distribution of mutations in the ten hypermutated cases (MBC, n = 5; …

Arabidopsis meiotic crossover hot spots overlap with H2A.Z nucleosomes at gene promoters

K Choi, X Zhao, KA Kelly, O Venn, JD Higgins… - Nature …, 2013 - nature.com
PRDM9 directs human meiotic crossover hot spots to intergenic sequence motifs, whereas
budding yeast hot spots overlap regions of low nucleosome density (LND) in gene promoters. …

A fine-scale chimpanzee genetic map from population sequencing

A Auton, A Fledel-Alon, S Pfeifer, O Venn, L Ségurel… - science, 2012 - science.org
To study the evolution of recombination rates in apes, we developed methodology to
construct a fine-scale genetic map from high-throughput sequence data from 10 Western …

Multiple instances of ancient balancing selection shared between humans and chimpanzees

…, Z Gao, S Pfeifer, L Ségurel, A Auton, O Venn… - Science, 2013 - science.org
Instances in which natural selection maintains genetic variation in a population over millions
of years are thought to be extremely rare. We conducted a genome-wide scan for long-lived …

Stable recombination hotspots in birds

S Singhal, EM Leffler, K Sannareddy, I Turner, O Venn… - Science, 2015 - science.org
The DNA-binding protein PRDM9 has a critical role in specifying meiotic recombination
hotspots in mice and apes, but it appears to be absent from other vertebrate species, including …

[HTML][HTML] Circulating tumor DNA allele fraction: a candidate biological signal for multicancer early detection tests to assess the clinical significance of cancers

J Bredno, O Venn, X Chen, P Freese… - The American Journal of …, 2022 - Elsevier
Current imaging-based cancer screening approaches provide useful but limited prognostic
information. Complementary to existing screening tests, cell-free DNA–based multicancer …

Strong male bias drives germline mutation in chimpanzees

O Venn, I Turner, I Mathieson, N de Groot, R Bontrop… - Science, 2014 - science.org
Germline mutation determines rates of molecular evolution, genetic diversity, and fitness
load. In humans, the average point mutation rate is 1.2 × 10 −8 per base pair per generation, …

[HTML][HTML] A DNA methylation atlas of normal human cell types

…, P Arner, AMJ Shapiro, M Grompe, A Aravanis, O Venn… - Nature, 2023 - nature.com
DNA methylation is a fundamental epigenetic mark that governs gene expression and
chromatin organization, thus providing a window into cellular identity and developmental …