First evidence for occurrence of Galbeta1-3GlcNAcbeta1-4Man unit in N-glycans of insect glycoprotein: beta1-3Gal and beta1-4GlcNAc transferases are involved in N-glycan processing of royal jelly glycoproteins.

On a way of structural analysis of total N-glycans linked to glycoproteins in royal jelly (Kimura, Y. et al., Biosci.

Antiviral activity of a hot water extract of black soybean against a human respiratory illness virus.

Significant antiviral activity against respiratory illness viruses has been found in a hot-water extract of black soybean. This black soybean extract showed significant antiviral activity against human adenovirus type 1 and coxsackievirus B1 in a dose-dependent manner, while the hot-water extract from common yellowish soybean showed only weak activity. The antiviral activity could not be extracted from the black soybean by 70% aqueous ethanol, suggesting that saponin in the seed did not contribute to this activity.

Occurrence of GalNAcbeta1-4GlcNAc unit in N-glycan of royal jelly glycoprotein.

Elsewhere, we characterized the structure of twelve N-glycans purified from royal jelly glycoproteins (Kimura, Y. et al., Biosci.