Biochemical comparisons of the peritrophic membranes of the lepidopterans Orgyia pseudotsugata and Manduca sexta
โ Scribed by Adang, Michael J.; Spence, Kemet D.
- Book ID
- 122433236
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 370 KB
- Volume
- 73
- Category
- Article
- ISSN
- 1096-4959
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The immune protein, scolexin, a bacteria-induced, larva-specific protein from Manduca sexta, was shown to exist in the hemolymph in two isoelectric forms designated herein as scolexin-1 and scolexin-2 (native M, -72 kd). These two charge isomers appeared to share the same amino acid composition. Sco
Magnesium and calcium ions, in concentrations comparable to those reported in the midgut fluids of lepidopteran larvae, bring about the precipitation of most of the tannic acid present in simple solutions buffered at pH 8.0 and 10.0, but not at pH 6.5. In contrast, when tannic acid is added to Mandu