Texas Protein tertiary structureGeneral Structural domain Protein folding Structure determination methods All-α folds: Helix bundle Globin fold Homeodomain fold Alpha solenoid Death fold All-β folds: Immunoglobulin domain Beta barrel Beta-propeller Beta helix α/β folds: TIM barrel Leucine-rich repeat Flavodoxin fold Rossmann fold Thioredoxin fold Trefoil knot fold α+β folds: DNA clamp Ferredoxin fold Ribonuclease A SH2-like fold Irregular folds: Conotoxin