3.2 Molecular modeling of MA2077Molecular modeling of MA2077 was performed using WAM [21] and the model was viewed as mentioned inSection 2.4. In MA2077, five residues of VH pertaining to vernier zone (H48:I, H67:A, H69:L, H71:V, and H78:A) and one residue belonging to both vernier zone as well as interchain packing (H93:T) were analyzed for interaction with CDRs, since these were non-identical in the human template. Representative analysis of interaction of H48:I (I156) and H93:T (T205) with other residues within a distance cut-off of 5 Å has been shown (Supporting information, Fig. S1A and S1B). The isoleucine at H48 (I156) was predicted to interact with six other residues, out of which, two residues H169 and F172 belong to CDR2. Moreover, I156 interacts with W155 and G157, which were both predicted to be in the vernier zone and common to the human template. In addition, I156 also interacted with the CDR1 terminating residue W144, which is conserved across the murine and human templates (Supporting information, Fig. S1A). Similarly, threonine at H93 (T205) was predicted to interact with six other residues, three of which G207, F213, and Y215 belong to CDR3. T205 also interacted with W216 at the boundary of CDR3 and the vernier zone residue R206, both of which are conserved across the murine and human sequences (Supporting information, Fig. S1B).
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