Fig. 2. Alignment of the L. migratoria and S. americana hb sequences. Clustal alignment of the predicted full-length amino acid sequences of the two grasshopper Hb proteins reveals 76% identity. Labeled brackets indicate conserved domains, including two zinc fingers towards the N terminus of the proteins (NF-1 and 2), four central zinc fingers (MF-1 to 4), two C terminal fingers (CF-1 and 2), and the conserved A, C and basic boxes. L.m., Locusta migratoria, S.a., Schistocerca americana.