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Published on: May 31, 2008
A cuticle protein gene from the Japanese oak silkmoth, Antheraea yamamai: gene structure and mRNA expression
Bo Yeon Kim1, Nam Sook Park, Byung Rae Jin
1Department of Sericulture and Entomology, Miryang National University, 627-130, Miryang, Korea.
Abstract:
A cuticle protein gene, AyCP12, from the Japanese oak silkmoth, Antheraea yamamai, was isolated and characterized. The gene spans 1107 bp and consists of one intron and two exons coding for a 112 amino acid polypeptide with a predicted molecular mass of 12,163 Da and a pI of 4.4. The AyCP12 protein contained a type-specific consensus sequence identifiable in other insect cuticle proteins and the deduced amino acid sequence of the AyCP12 cDNA is most homologous to another silkmoth, A. pernyi, cuticle protein ApCP13 (82% protein sequence identity). Northern blot analysis revealed that AyCP12 showed the epidermis-specific expression.
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