S. Henry et A. Hobbs, Sequence analysis and expression of a mRNA for a larval-specific cuticularprotein, LCP1, from Helicoverpa armigera, INSEC MOL B, 8(3), 1999, pp. 415-417
Several cDNA clones for a larval cuticular protein from Helicoverpa armiger
a were isolated and sequenced. The cDNA clones contain an open reading fram
e encoding a 109 residue protein which is homologous to other known cuticul
ar proteins. The predicted protein appears to have a signal peptide which w
ould be removed to give a mature protein of 91 amino acid residues with an
M-r of 10 127. The mature protein, LCP1 (Larval Cuticular Protein), would b
e highly acidic, as is found for other cuticular proteins from flexible ins
ect cuticles. The mRNA appears to be expressed throughout larval developmen
t although it is more highly expressed in the integument of the late final
instar.