In contrast , the yeast Saccharomyces cerevisiae is smaller , with a mass of only 66 MDa .
The molecular mass of the mammalian NPC is about 124 megadaltons ( MDa ) and it contains approximately 30 different protein components , each in multiple copies .
The yeast Saccharomyces cerevisiae is smaller , with a mass of only 66 MDa .
The molecular mass of the mammalian NPC is about 124 megadaltons ( MDa ) and it contains approximately 30 different protein components , each in multiple copies .