Loss-of-function, gain-of-function and dominant-negative mutations have profoundly different effects on protein structure.

ABSTRACT: Most known pathogenic mutations occur in protein-coding regions of DNA and change the way proteins are made. Taking protein structure into account has therefore provided great insight into the molecular mechanisms underlying human genetic disease. While there has been much focus on how mutations can disrupt protein structure and thus cause a loss of function (LOF), alternative mechanisms, specifically dominant-negative (DN) and gain-of-function (GOF) effects, are less understood. Here, we investigate the protein-level effects of pathogenic missense mutations associated with different molecular mechanisms. We observe striking differences between recessive vs dominant, and LOF vs non-LOF mutations, with dominant, non-LOF disease mutations having much milder effects on protein structure, and

SUBMITTER: Gerasimavicius L 

PROVIDER: S-EPMC9259657 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature