MG132などをつかってプロテアソーム非依存性のものがあるようだなどの実験はいくらかあるようですね。
ttp://jvi.asm.org/content/72/6/4849.full
Studies with isolated rat skeletal muscles have revealed at least four proteolytic processes in this tissue (4–6): ( a ) a lysosomal pathway mediated by proteases (cathepsins) localized within this organelle; ( b ) a cytosolic Ca2++-dependent process, which involves the Ca++-activated proteases (calpains); ( c ) an ATP-requiring process, demonstrated after inhibition of lysosomal and Ca++-dependent proteases; and ( d ) an energy-independent pathway, the biochemical basis of which is uncertain.
下記のリンクのイントロにこんな分類がかかれていました。
ttp://dm5migu4zj3pb.cloudfront.net/manuscripts/119000/119513/JCI97119513.pdf
Surprisingly, Abraxas downregulation is not blocked by MG132 suggesting that a proteasome-independent mechanism regulates levels of this protein.
ttp://journals.plos.org/plosone/article?id=10.1371/journal.pone.0014027 |
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