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Predicting, Engineering and Interpreting Gene Regulatory Sequences and Proteins with Deep Learning.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Predicting, Engineering and Interpreting Gene Regulatory Sequences and Proteins with Deep Learning./
作者:	Linder, Johannes Staffan Anders.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	126 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-02, Section: B.
Contained By:	Dissertations Abstracts International83-02B.
標題:	Computer science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28545714
ISBN:	9798535503622

Predicting, Engineering and Interpreting Gene Regulatory Sequences and Proteins with Deep Learning.
Linder, Johannes Staffan Anders.

Predicting, Engineering and Interpreting Gene Regulatory Sequences and Proteins with Deep Learning. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 126 p.

Source: Dissertations Abstracts International, Volume: 83-02, Section: B.

Thesis (Ph.D.)--University of Washington, 2021.

This item must not be sold to any third party vendors.

The vast majority of the 3.1 billion base-pairs in the (haploid) human genome do not code for a particular protein, yet mutations in these non-coding regions can have a profound impact on phenotype and be deleterious. The reason is that within these regions - enhancers, promoters, introns and untranslated regions (UTRs) - reside a cis-regulatory code which governs gene expression and is sensitive to disruption. Ongoing efforts of mapping the relationship between genetic variants and disease phenotype are limited by data and the lack of generalizability. Furthermore, engineering de novo gene-regulatory sequences and proteins according to target specifications, which would aid the development of vaccines, medical therapeutics, molecular sensing devices and more, is hampered by the lack of methods that can reliably generate large sets of diverse and optimized candidate designs for high-throughput screening.This dissertation presents an approach combining Massively Parallel Reporter Assays (MPRAs) with Deep Learning to obtain a sequence-predictive model of Alternative Polyadenylation (APA), a regulatory process occurring mainly in the 3' UTR of pre-mRNA. The trained neural network predicts 3'-end cleavage at base-pair resolution and can accurately prioritize human variants. By developing methods to visualize features learned in higher-order network layers, we extract a cis-regulatory APA code that aligns well with established biology.Next, the dissertation presents a family of methods that were developed to design de novo biological sequences based on the response of a differentiable fitness predictor. These methods, which are based on activation maximization, can be used to efficiently generate millions of diverse, optimized sequence designs on the basis of a deep generative model. Finally, we present a feature attribution method for interpreting neural network predictions. The method, which learns input masks that either reconstruct or destroy the prediction, implements a masking operator based on probabilistic sampling that is shown to be particularly well-suited for interpreting biological sequence models. The developed design- and interpretation methods are demonstrated on several DNA-, RNA- and protein function predictors and outperform state-of-the-art methods for multiple target applications.

ISBN: 9798535503622Subjects--Topical Terms:

523869
Computer science.
Subjects--Index Terms:

Massively Parallel Reporter Assays

Predicting, Engineering and Interpreting Gene Regulatory Sequences and Proteins with Deep Learning.
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