Flavodoxin fold

Ribbon diagram of CheY (a regulator of the chemotactic response in bacteria, PDB accession code 3CHY), which adopts the flavodoxin fold. Ribbon is colored from blue (N-terminus) to red (C-terminus).

The flavodoxin fold is a common α/β protein fold, second only to the TIM barrel fold. It has three layers, with two α-helical layers sandwiching a 5-stranded parallel β-sheet. The order of strands within the sheet is 21345.

External links

SCOP list of proteins adopting the flavodoxin fold

References

Protein tertiary structure

General	Structural domain Protein folding Structure determination methods

All-α folds:	Helix bundle Globin fold Homeodomain fold Alpha solenoid

All-β folds:	Immunoglobulin domain Beta barrel Beta-propeller

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

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