WD40 repeat

Available protein structures:
Pfam	structures / ECOD
PDB	RCSB PDB; PDBe; PDBj
PDBsum	structure summary
PDB	1b9x, 1b9y, 1erj, 1gg2, 1got, 1gp2, 1gxr, 1nex, 1nr0, 1omw, 1p22, 1pev, 1pgu, 1pi6, 1s4u, 1sq9, 1tbg, 1u4c, 1xhm, 1yfq, 2bcj, 2ce8, 2ce9, 2trc

WD domain, G-beta repeat
WD domain, G-beta repeat
	Ribbon diagram of the C-terminal WD40 domain of Tup1 (a transcriptional corepressor in yeast), which adopts a 7-bladed beta-propeller fold. Ribbon is colored from blue (N-terminus) to red (C-terminus).
Identifiers
Symbol	WD40
Pfam	PF00400
Pfam clan	CL0186
InterPro	IPR001680
PROSITE	PDOC00574
SCOP2	1gp2 / SCOPe / SUPFAM
CDD	cd00200
Pfam
Available protein structures:
Pfam	structures / ECOD
PDB	RCSB PDB; PDBe; PDBj
PDBsum	structure summary
PDB	1b9x, 1b9y, 1erj, 1gg2, 1got, 1gp2, 1gxr, 1nex, 1nr0, 1omw, 1p22, 1pev, 1pgu, 1pi6, 1s4u, 1sq9, 1tbg, 1u4c, 1xhm, 1yfq, 2bcj, 2ce8, 2ce9, 2trc

The WD40 repeat (also known as the WD or beta-transducin repeat) is a short structural motif of approximately 40 amino acids, often terminating in a tryptophan-aspartic acid (W-D) dipeptide.^[2] Tandem copies of these repeats typically fold together to form a type of circular solenoid protein domain called the WD40 domain.

^ PDB: 1erj; Sprague ER, Redd MJ, Johnson AD, Wolberger C (June 2000). "Structure of the C-terminal domain of Tup1, a corepressor of transcription in yeast". EMBO J. 19 (12): 3016–27. doi:10.1093/emboj/19.12.3016. PMC 203344. PMID 10856245.
^ Neer EJ, Schmidt CJ, Nambudripad R, Smith TF (September 1994). "The ancient regulatory-protein family of WD-repeat proteins". Nature. 371 (6495): 297–300. Bibcode:1994Natur.371..297N. doi:10.1038/371297a0. PMID 8090199. S2CID 600856.