gain of function

Engineered trait addition

Gain of function refers to genetic modifications that give an organism new or enhanced abilities it didn't have before.

The term appears most often in virology, where researchers deliberately alter pathogens to make them more transmissible or virulent: gain-of-function research on influenza viruses.

Such work aims to anticipate natural mutations but carries obvious biosecurity risks, making it controversial.

The phrase entered wider public discourse during debates over COVID-19 origins.

genetics

mutation

Permanent DNA alteration

  • variantDiffering form of something
  • alleleGene variant at one locus
  • phenotypeObservable characteristics of organism

genotype · fitness · selection · adaptation · enhancement · expression · penetrance · dominant · replication · attenuation

virology

pathogen

Disease-causing microorganism

  • virusMicroscopic infectious agent
  • influenzaAcute viral respiratory infection
  • H5N1Avian influenza subtype

coronavirus · SARS · MERS · transmissibility · virulence · infectivity · airborne · spike protein · biosafety · Wuhan

ethics

dual-use

Having two applications

regulation · transparency · accountability · biosecurity · bioterrorism · biowarfare · accident · risk-benefit · public health · debate

methodology

chimeric

Fancifully unreal, hybrid

cell culture · animal model · ferret · mouse · containment · protocol · peer review

Categories
Opposites
functional change direction

gain of functionknockout

Incapacitating final blow

attenuation · risk mitigation · deactivation · knockdown

origin of genetic change

gain of functionnatural selection

Differential reproductive success

wild-type · evolutionary adaptation · unengineered

research risk philosophy

gain of functionvaccine development

Creating disease-preventing biological preparations

Family

gain, gains, gained, gaining, gainer, gainers, gainful, gainfully, function

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Rated G