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Title: Establishing the precise evolutionary history of a gene improves prediction of disease-causing missense mutations

Journal Article · · Genetics in Medicine
DOI:https://doi.org/10.1038/gim.2015.208· OSTI ID:1327749
ORCiD logo [1];  [2];  [3];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States); Pavlov First Saint Petersburg State Medical Univ., Saint Petersburg (Russia)
  3. Washington Univ. School of Medicine, St. Louis, MO (United States)

Here, predicting the phenotypic effects of mutations has become an important application in clinical genetic diagnostics. Computational tools evaluate the behavior of the variant over evolutionary time and assume that variations seen during the course of evolution are probably benign in humans. However, current tools do not take into account orthologous/paralogous relationships. Paralogs have dramatically different roles in Mendelian diseases. For example, whereas inactivating mutations in the NPC1 gene cause the neurodegenerative disorder Niemann-Pick C, inactivating mutations in its paralog NPC1L1 are not disease-causing and, moreover, are implicated in protection from coronary heart disease. Methods: We identified major events in NPC1 evolution and revealed and compared orthologs and paralogs of the human NPC1 gene through phylogenetic and protein sequence analyses. We predicted whether an amino acid substitution affects protein function by reducing the organism s fitness. As a result, removing the paralogs and distant homologs improved the overall performance of categorizing disease-causing and benign amino acid substitutions. In conclusion, the results show that a thorough evolutionary analysis followed by identification of orthologs improves the accuracy in predicting disease-causing missense mutations. We anticipate that this approach will be used as a reference in the interpretation of variants in other genetic diseases as well.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1327749
Journal Information:
Genetics in Medicine, Vol. 18, Issue 10; ISSN 1098-3600
Publisher:
American College of Medical Genetics and Genomics - Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

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Cited By (15)

The Complementarity Between Protein-Specific and General Pathogenicity Predictors for Amino Acid Substitutions journal August 2016
Acute Intermittent Porphyria: Predicted Pathogenicity of HMBS Variants Indicates Extremely Low Penetrance of the Autosomal Dominant Disease: HUMAN MUTATION journal September 2016
Comparative study of the effect of disease causing and benign mutations in position Q92 on cholesterol binding by the NPC1 n-terminal domain journal October 2018
Refinement of evolutionary medicine predictions based on clinical evidence for the manifestations of Mendelian diseases journal December 2019
Variation Benchmark Datasets: Update, Criteria, Quality and Applications journal May 2019
Revealing Alzheimer’s disease genes spectrum in the whole-genome by machine learning journal January 2018
The complex domain architecture of SAMD9 family proteins, predicted STAND-like NTPases, suggests new links to inflammation and apoptosis journal May 2017
Utility of primary cells to examine NPC1 receptor expression in Mops condylurus, a potential Ebola virus reservoir journal January 2020
From prioritisation to understanding: mechanistic predictions of variant effects journal December 2018
Variation benchmark datasets: update, criteria, quality and applications journal January 2020
Utility of primary cells to examine NPC1 receptor expression in Mops condylurus, a potential Ebola virus reservoir text January 2020
Curated multiple sequence alignment for the Adenomatous Polyposis Coli (APC) gene and accuracy of in silico pathogenicity predictions journal August 2020
Predicting phenotype from genotype: Improving accuracy through more robust experimental and computational modeling journal February 2017
Modeling SARS-CoV-2 spike/ACE2 protein–protein interactions for predicting the binding affinity of new spike variants for ACE2, and novel ACE2 structurally related human protein targets, for COVID-19 handling in the 3PM context journal January 2022
A novel PRRT2 pathogenic variant in a family with paroxysmal kinesigenic dyskinesia and benign familial infantile seizures journal November 2017

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