A reversible haploid mouse embryonic stem cell biobank resource for functional genomics.

A reversible haploid mouse embryonic stem cell biobank resource for functional genomics.
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DOI:
10.1038/nature24027
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发表时间:
2017-10-05
期刊:
影响因子:
64.8
通讯作者:
Penninger JM
Penninger JM
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Elling U;Wimmer RA;Leibbrandt A;Burkard T;Michlits G;Leopoldi A;Micheler T;Abdeen D;Zhuk S;Aspalter IM;Handl C;Liebergesell J;Hubmann M;Husa AM;Kinzer M;Schuller N;Wetzel E;van de Loo N;Martinez JAZ;Estoppey D;Riedl R;Yang F;Fu B;Dechat T;Ivics Z;Agu CA;Bell O;Blaas D;Gerhardt H;Hoepfner D;Stark A;Penninger JM

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The ability to directly uncover the contributions of genes to a given phenotype is fundamental for biology research. However, ostensibly homogeneous cell populations exhibit large clonal variance that can confound analyses and undermine reproducibility. Here, we used genome-saturated mutagenesis to create a biobank of over 100,000 individual haploid murine embryonic stem cell (mESC) lines targeting 16,950 genes with genetically bar-coded, conditional and reversible mutations. This Haplobank is the largest resource of hemi-/homozygous mutant mESCs to date and is available to all researchers. Reversible mutagenesis overcomes clonal variance by permitting functional annotation of the genome directly in sister cells. We utilize Haplobank in reverse genetic screens to investigate the temporal resolution of essential genes in mESCs, and to identify novel genes that control sprouting angiogenesis and blood vessel lineage specification. Further, a genome-wide forward screen with Haplobank identified PLA2G16 as a host factor required for cytotoxicity by rhinoviruses, which cause the common cold. Thus, Haplobank clones and revertible technologies enable high-throughput, reproducible functional annotation of the genome.
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