Abstract

The three tryptic glycopeptides from ovine lutropin, in which two were from the α-subunit (α-56 and α-82 glycopeptides) and one from the β-subunit (β-13 glycopeptide), have been isolated and their carbohydrate compositions analyzed. The results indicate that the α-56 glycopeptide has the highest amount of carbohydrate, whereas the β-13 glycopeptide has the least. In general, each of the glycopeptides has similar distribution of various sugars, i.e. high in mannose and glucosamine and low in fucose, sialic acid, galactose and galactosamine. Within the limit of experimental error, the sum of their carbohydrate composition is in agreement with the published data on the intact hormone or separated subunits.

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