the ratio of n-acetyl- to n-glycolylneuraminic acid in dopamine beta-hydroxylase and the glycoproteins of chromaffin granule membranes is approximately 1.5:1 , which is within the same range as that previously found in membrane gangliosides and in the chromogranins isolated from the soluble granule matrix .
C0017968
glycoproteins
C0008586
chromogranins