Table 1 Calpains and caspases involved in the proteolysis of proteins codified by genes linked to ALS.

From: Effects of intracellular calcium accumulation on proteins encoded by the major genes underlying amyotrophic lateral sclerosis

 

Calpain-1*

Calpain-2*

Caspase-3

Caspase-6

Caspase-7

Caspase-8

TDP-43

 ++++ 

 +++ 

 +++ 

 ++++ 

 ++++ 

 +++ 

C9orf72

 ++++ 

 ++++ 

 + 

 ++ 

 ++ 

 +++ 

p62/sequestosome-1

 ++++ 

 ++++ 

 ++ 

 ++++ 

 ++ 

 ++++ 

Matrin-3

 ++++ 

 ++++ 

 ++ 

 ++++ 

 ++++ 

 ++++ 

VCP

 +++ 

 + 

 − 

 ++ 

 − 

 ++ 

FUS

 ++++ 

 ++++ 

 ++ 

 +++ 

 +++ 

 +++ 

SOD1

 − 

 − 

 − 

 − 

 − 

 − 

Profilin-1

 − 

 − 

 − 

 − 

 − 

 − 

  1. *At 10 min of treatment.
  2.  − ,  no decrease in full-length protein or decrease ≤ 5%;  + ,  5% < decrease in full-length protein ≤ 10% or decrease in full-length protein < 5% with visible cleavage products;  ++ ,  10% < decrease in full-length protein ≤ 50%;  +++ ,  50% < decrease in full-length protein ≤ 90%;  ++++ ,  decrease in full-length protein > 90%.