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The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.

LoFreq: a sequence-quality aware, ultra-sensitive variant caller for uncovering cell-population heterogeneity from high-throughput sequencing datasets

Open access
Wilm, Andreas, Aw, Pauline Poh Kim, Bertrand, Denis, Yeo, Grace Hui Ting, Ong, Swee Hoe, Wong, Chang Hua, Khor, Chiea Chuen, Petric, Rosemary, Hibberd, Martin Lloyd, Nagarajan, Niranjan·2012·Nucleic Acids Research

Abstract

The study of cell-population heterogeneity in a range of biological systems, from viruses to bacterial isolates to tumor samples, has been transformed by recent advances in sequencing throughput. While the high-coverage afforded can be used, in principle, to identify very rare variants in a population, existing ad hoc approaches frequently fail to distinguish true variants from sequencing errors. We report a method (LoFreq) that models sequencing run-specific error rates to accurately call variants occurring in <0.05% of a population. Using simulated and real datasets (viral, bacterial and human), we show that LoFreq has near-perfect specificity, with significantly improved sensitivity compared with existing methods and can efficiently analyze deep Illumina sequencing datasets without resorting to approximations or heuristics. We also present experimental validation for LoFreq on two different platforms (Fluidigm and Sequenom) and its application to call rare somatic variants from exome sequencing datasets for gastric cancer. Source code and executables for LoFreq are freely available at http://sourceforge.net/projects/lofreq/.

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  1. Klumpp, 2006, The novel nucleoside analog R1479 (4′-azidocytidine) is a potent inhibitor of NS5B-dependent RNA synthesis and hepatitis C virus replication in cell culture, J. Biol. Chem., 281, 3793, 10.1074/jbc.M510195200 · doi:10.1074/jbc.m510195200

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Metadata

Authors
Wilm, A., Aw, P. P. K., Bertrand, D., Yeo, G. H. T., Ong, S. H., Wong, C. H., Khor, C. C., Petric, R., Hibberd, M. L., & Nagarajan, N.
Venue
Nucleic Acids Research
Published
2012-10-12
Volume
40
Issue
22
Pages
11189-11201
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W1964807436
Cited by
1,372
References
55
FWCI
6.85
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: LoFreq: a sequence-quality aware, ultra-sensitive variant caller for uncovering cell-population heterogeneity from high-throughput sequencing datasets. https://app.cochat.ai/papers/10.1093/nar/gks918
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Wilm, A., Aw, P. P. K., Bertrand, D., Yeo, G. H. T., Ong, S. H., Wong, C. H., Khor, C. C., Petric, R., Hibberd, M. L., & Nagarajan, N. (2012). LoFreq: a sequence-quality aware, ultra-sensitive variant caller for uncovering cell-population heterogeneity from high-throughput sequencing datasets. Nucleic Acids Research. https://doi.org/10.1093/nar/gks918

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