Analysis of Glutaredoxin (GRX) protein family. Phylogenetic tree based on maximum likelihood analysis of a Dermacentor. variabilis midgut protein and published glutaredoxin (GRX) sequences. The transcript identified in this analysis is in bold (DvM). Phylogenetic analysis was conducted on protein alignments using Tree Puzzle version 5.2. Values at nodes represent calculated internal branch node support (1000 replications). D. variabilis (Dv), Plasmodium falciparum (Pf), Drosophila melanogaster (Dm), Anopheles gambiae (Ag), Bombyx mori (Bm), Tribolium castaneum (Tc), Aedes aegypti (Aa).