2.4.1.122 Cosmc specific molecular chaperone 2.4.1.122 lactacystin treatment with 0.01 mM lactacystin results in the increased expression of C1GalT protein 2.4.1.122 additional information Cosmc (also known as C1GALT1C1), an endoplasmic reticulum chaperone, is essential for the precise folding and activity of C1GalT1 in mammals. In contrast to mammalian orthologues, Drosophila dC1GalT1 does not require a chaperone such as Cosmc 2.4.1.122 Triton X-100 activation and stabilization, unstable without