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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Am+J+Hum+Genet
2017 ; 100
(1
): 5-20
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Proteome-Scale Investigation of Protein Allosteric Regulation Perturbed by
Somatic Mutations in 7,000 Cancer Genomes
#MMPMID27939638
Shen Q
; Cheng F
; Song H
; Lu W
; Zhao J
; An X
; Liu M
; Chen G
; Zhao Z
; Zhang J
Am J Hum Genet
2017[Jan]; 100
(1
): 5-20
PMID27939638
show ga
The allosteric regulation triggering the protein's functional activity via
conformational changes is an intrinsic function of protein under many
physiological and pathological conditions, including cancer. Identification of
the biological effects of specific somatic variants on allosteric proteins and
the phenotypes that they alter during tumor initiation and progression is a
central challenge for cancer genomes in the post-genomic era. Here, we mapped
more than 47,000 somatic missense mutations observed in approximately 7,000
tumor-normal matched samples across 33 cancer types into protein allosteric sites
to prioritize the mutated allosteric proteins and we tested our prediction in
cancer cell lines. We found that the deleterious mutations identified in cancer
genomes were more significantly enriched at protein allosteric sites than
tolerated mutations, suggesting a critical role for protein allosteric variants
in cancer. Next, we developed a statistical approach, namely AlloDriver, and
further identified 15 potential mutated allosteric proteins during pan-cancer and
individual cancer-type analyses. More importantly, we experimentally confirmed
that p.Pro360Ala on PDE10A played a potential oncogenic role in mediating
tumorigenesis in non-small cell lung cancer (NSCLC). In summary, these findings
shed light on the role of allosteric regulation during tumorigenesis and provide
a useful tool for the timely development of targeted cancer therapies.