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. 2012 Aug 7;7(8):e42288. doi: 10.1371/journal.pone.0042288

Figure 2. Comparison of CH2 loop BC and germline VH H1.

Figure 2

The frequency of amino acids occurring in H1 according to IMGT website was calculated by WebLogo. The amino acids were colored as follows: polar G, S, T, Y, C (Y is classified as “polar” amino acids by WebLogo and excluded from the “hydrophobic” amino acids listed below although it is also hydrophobic): green; neutral Q, N: purple; basic K, R, H: blue; acidic D, E: red; hydrophobic A, V, L, I, P, W, F, M: black. The dominant length of H1 is eight amino acids (41 from 53 analyzed sequences); three sequences are nine amino acid long and nine sequences are ten amino acid long.