Ferredoxin fold

Ribbon diagram of acylphosphatase (PDB accession code 2ACY), which adopts a ferredoxin fold with an extra β-strand at the C-terminus (shown in red). The ribbon is colored from blue (N-terminus) to red (C-terminus).

In protein structure, a ferredoxin fold is a common α+β protein fold with a signature βαββαβ secondary structure along its backbone. Structurally, the ferredoxin fold can be regarded as a long, symmetric hairpin that is wrapped once around, so that its two terminal β-strands hydrogen-bond to the central two β-strands, forming a four-stranded, antiparallel β-sheet covered on one side by two α-helices.

External links

SCOP list of proteins with a ferredoxin-like fold

References

Protein tertiary structure

General

All-α folds:

All-β folds:

α/β folds:

α+β folds:

Irregular folds:

Conotoxin

Index of genetics

Description	Gene expression DNA replication cycle recombination repair binding proteins Transcription factors regulators nucleic acids RNA RNA binding proteins ribonucleoproteins repeated sequence modification Translation ribosome modification nexins Proteins domains Structure primary secondary tertiary quaternary

Disease	Replication and repair Transcription factor Transcription Translation