Table 1.
Comparison of PaCS and sequestosome features.
PaCS | Sequestosome | |
---|---|---|
Ultrastructure * | Collection of barrel-like particles | Granulofibrillar arrays |
Content | ||
(a) Proteasome | Yes | No |
(b) Polyubiquitinated proteins | Yes (likely K48-linked) | No |
(c) Hsp 70 and 90 | Yes | No |
(d) P62/SQSTM1 | No | Yes |
Degradation by autophagy | Possible | Possible |
Entering cell blebs and ectosomes | Frequent | Not found |
Associated pathology | Clear cell neoplasms | Hepatocellular cancer |
* See also Figure 6.