Crystal structure of the p97 D2 domain in a helical split-washer conformation

Crystal structure of the catalytic D2 domain of the AAA+ ATPase p97 reveals a putative helical split-washer-type mechanism for substrate unfolding.

Transitional endoplasmic reticulum ATPase

TER ATPase,15S Mg(2+)-ATPase p97 subunit,Valosin-containing protein,VCP

GPGSALRETVVEVPQVTWEDIGGLEDVKRELQELVQYPVEHPDKFLKFGMTPSKGVLFYGPPGCGKTLLAKAIANECQAN
FISIKGPELLTMWFGESEANVREIFDKARQAAPCVLFFDELDSIAKARGGNIGDGGGAADRVINQILTEMDGMSTKKNVF
IIGATNRPDIIDPAILRPGRLDQLIYIPLPDEKSRVAILKANLRKSPVAKDVDLEFLAKMTNGFSGADLTEICQRACKLA
IRESIESEIRRERERQTNPSAMEVEEDDPVPEIRRDHFEEAMRFARRSVSDNDIRKYEMFAQTLQQ

0.08M L-Na-Glutamate; 0.08M Alanine (racemic); 0.08M Glycine; 0.08M Lysine HCl (racemic); 0.08M Serine (racemic), 0.08M Tris, 0.08M BICINE, 10% v/v MPD; 10% PEG 1000; 10% w/v PEG 3350 at pH 8.5

ATPase, p97, protein degradation, Hydrolase

SALRETVVEVPQVTWEDIGGLEDVKRELQELVQYPVEHPDKFLKFGMTPSKGVLFYGPPGCGKTLLAKAIANECQANFIS
IKGPELLTMWFGESEANVREIFDKARQAAPCVLFFDELDSIAKARGGNIGDGGGAADRVINQILTEMDGMSTKKNVFIIG
ATNRPDIIDPAILRPGRLDQLIYIPLPDEKSRVAILKANLRKSPVAKDVDLEFLAKMTNGFSGADLTEICQRACKLAIRE
SIESEIRRERERQTNPSAMEVEEDDPVPEIRRDHFEEAMRFARRSVSDNDIRKYEMFAQTLQQ