Sequence alignment between 3v1g(B) and UniProt seq P01308 (INS_HUMAN):

P01308 (INS_HUMAN): Insulin from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
UniProt: MALWMRLLPLLALLALWGPDPAAAFVNQHLCGSHLVEALYLVCGERGFFYTPKTRREAEDLQVGQVELGGGPGAGSLQPLALEGSLQKRGIVEQCCTSICSLYQLENYCN
         ............................................X.................................................................
PDB seq: ------------------------FVNQHLCGSHLVEALYLVCGXRGFFYTPKT--------------------------------------------------------
                                 ---------+---------+---------+                                                        
                                         10        20        30