21RK

A bacterial caspase in an inhibited state

This is a non-PDB format compatible entry.

Summary for 21RK

• Entry DOI: 10.2210/pdb21rk/pdb
• EMDB information: 67944
• Related PRD ID: PRD_001076
• Descriptor: PsCaspase, "N-[(benzyloxy)carbonyl]-L-valyl-N~5~-[amino(iminio)methyl]-L-ornithyl-N-[(3R)-6-{[amino(iminio)methyl]amino}-1-fluoro-2-oxohexan-3-yl]-L-prolinamide, Adenosine 5'-diphosphate-cyclo[N7:1'']-ribose (3 entities in total)
• Functional Keywords: a bacterial caspase in an inhibited state, cell invasion
• Biological source: Pseudomonas aeruginosa UCBPP-PA14; More
• Total number of polymer chains: 40
• Total formula weight: 731358.74

Authors

Wang, W.H.,Feng, Y. (deposition date: 2025-12-23, release date: 2026-09-23)

• Primary citation: Wei, L.,Shu, X.,Wang, W.,Li, F.,Fan, Y.,Li, D.,Wang, R.,Liu, J.,Wang, Q.,Jiang, L.,He, L.,Duan, S.,Zhao, L.,Zhang, S.,Ren, J.,Zhang, Y.,Li, M.,Feng, Y.; Caspase forms double-stranded helical assembly during the type IV Thoeris; Vita, 2026; DOI: 10.15302/vita.2026.06.0047

Experimental method

ELECTRON MICROSCOPY (2.21 Å)