8K97

CryoEM structure of LonC protease hexamer with Bortezomib


Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF05362Lon protease (S16) C-terminal proteolytic domain (Lon_C)Lon protease (S16) C-terminal proteolytic domainThe Lon serine proteases must hydrolyse ATP to degrade protein substrates. In Escherichia coli, these proteases are involved in turnover of intracellular proteins, including abnormal proteins following heat-shock. The active site for protease activit ...The Lon serine proteases must hydrolyse ATP to degrade protein substrates. In Escherichia coli, these proteases are involved in turnover of intracellular proteins, including abnormal proteins following heat-shock. The active site for protease activity resides in a C-terminal domain. The Lon proteases are classified as family S16 in Merops.
Domain
PF13654LonB-like, AAA domain (AAA_32)LonB-like, AAA domainThis entry includes a wide variety of AAA domains, including some that have lost essential nucleotide binding residues in the P-loop. This domain is found in Lon proteases from archaea and bacteria [1].Domain
PF20436Archaeal LonB, AAA+ ATPase LID domain (LonB_AAA-LID)Archaeal LonB, AAA+ ATPase LID domainThe species-specific Lon-insertion domain (LID) is characteristic of Lon proteases (also known as endopeptidase La) and is fused to the AAA+ module [1]. Bacterial and eukaryotic Lons (LonA) have a LID at the N-terminal of AAA+ module; in archaeal Lon ...The species-specific Lon-insertion domain (LID) is characteristic of Lon proteases (also known as endopeptidase La) and is fused to the AAA+ module [1]. Bacterial and eukaryotic Lons (LonA) have a LID at the N-terminal of AAA+ module; in archaeal Lons (LonB) the LID, represented in this entry, is inserted within the AAA+ module in a series of transmembrane segments known as the membrane-anchoring region (MA). In the Lon-like protease LonC, which does not have ATPase activity, the LID is also within the AAA-like module similar to LonBs; in this case, it is predicted to contain coiled-coil regions rather than transmembrane segments [1].
Domain