Fig. 5From: Full-length versus truncated α-factor secretory signal sequences for expression of recombinant human insulin precursor in yeast Pichia pastoris: a comparisonThe HIP expression intensity of eight parental HF clones compared to their derivative PTVA clones. Asterisks (*) indicate significantly different comparisons according to the Wilcoxon signed ranks test (p value < 0.05)Back to article page