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Allele-specific single-cell RNA sequencing reveals different architectures of intrinsic and extrinsic gene expression noises.


ABSTRACT: Gene expression noise refers to the variation of the expression level of a gene among isogenic cells in the same environment, and has two sources: extrinsic noise arising from the disparity of the cell state and intrinsic noise arising from the stochastic process of gene expression in the same cell state. Due to the low throughput of the existing method for measuring the two noise components, the architectures of intrinsic and extrinsic expression noises remain elusive. Using allele-specific single-cell RNA sequencing, we here estimate the two noise components of 3975 genes in mouse fibroblast cells. Our analyses verify predicted influences of several factors such as the TATA-box and microRNA targeting on intrinsic or extrinsic noises and reveal gene function-associated noise trends implicating the action of natural selection. These findings unravel differential regulations, optimizations, and biological consequences of intrinsic and extrinsic noises and can aid the construction of desired synthetic circuits.

SUBMITTER: Sun M 

PROVIDER: S-EPMC6954418 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Allele-specific single-cell RNA sequencing reveals different architectures of intrinsic and extrinsic gene expression noises.

Sun Mengyi M   Zhang Jianzhi J  

Nucleic acids research 20200101 2


Gene expression noise refers to the variation of the expression level of a gene among isogenic cells in the same environment, and has two sources: extrinsic noise arising from the disparity of the cell state and intrinsic noise arising from the stochastic process of gene expression in the same cell state. Due to the low throughput of the existing method for measuring the two noise components, the architectures of intrinsic and extrinsic expression noises remain elusive. Using allele-specific sin  ...[more]

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