6utj

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Allosteric couple between alpha rings of the 20S proteasome. 20S proteasome singly capped by PA26/E102A, C-terminus replaced by PAN C-terminusAllosteric couple between alpha rings of the 20S proteasome. 20S proteasome singly capped by PA26/E102A, C-terminus replaced by PAN C-terminus

Structural highlights

6utj is a 35 chain structure with sequence from Thermoplasma acidophilum and Trypanosoma brucei. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Electron Microscopy, Resolution 2.9Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PSA_THEAC Component of the proteasome core, a large protease complex with broad specificity involved in protein degradation. The T.acidophilum proteasome is able to cleave oligopeptides after Tyr, Leu, Phe, and to a lesser extent after Glu and Arg. Thus, displays chymotrypsin-like activity and low level of caspase-like and trypsin-like activities.[1]

See Also

References

  1. Akopian TN, Kisselev AF, Goldberg AL. Processive degradation of proteins and other catalytic properties of the proteasome from Thermoplasma acidophilum. J Biol Chem. 1997 Jan 17;272(3):1791-8. PMID:8999862

6utj, resolution 2.90Å

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OCA