factoriin
Factoriin is a fictional protein commonly used in teaching materials to illustrate fundamental concepts in molecular biology and biochemistry. It is not documented as a natural protein in living organisms, and there is no experimental evidence supporting its existence outside pedagogical examples. Because factoriin is illustrative rather than real, descriptions of its properties vary across texts and curricula.
In typical depictions, factoriin is encoded by a hypothetical gene, ftiN, located in a small regulatory operon.
Educational use of factoriin covers topics such as gene expression, protein folding, oligomerization, and enzyme kinetics.
Factoriin is often referenced alongside discussions of hypothetical proteins and computational modelling. It provides a neutral