X-Nico

2 unusual facts about Atomic mass unit


Atomic mass unit

Titin, the largest known protein, has an atomic mass of 3-3.7 megadaltons (3,000,000 Da).

Polysaccharide-K

The approximate molecular weight of PSK is 100,000 Da, and the protein component is reported at the β-1,6 side chain.


Moon Impact Probe

This instrument was a quadrupole mass spectrometer with a mass resolution of 0.5 amu and sensitivities to partial pressures on the order of 1.3×10−11 pascals.

Outer mitochondrial membrane

It contains numerous integral proteins called porins, which contain a relatively large internal channel (about 2-3 nm) that is permeable to all molecules of 5000 daltons or less.

Syntrophin

The syntrophins are a family of five 60-kiloDalton proteins that are associated with dystrophin, the protein associated with Duchenne muscular dystrophy and Becker muscular dystrophy.


see also