Enzyme Updated +Created
A protein that is a catalyst for some chemical reaction.
For an initial concrete example, consider e. Coli K-12 MG1655 gene thrA.
Video 1.
How Enzymes Work by RCSBProteinDataBank (2017)
Source. Shows in detail how aconitase catalyses the citrate to isocitrate reaction in the citric acid cycle.
Metabolic pathway Updated +Created
Some notable examples: