Chains and heterogens:
PDB Chain Sequences:
>1arw_ (-) svtcpggqstsnsqccvwfdvlddlqtnfyqgskcespvrkilrivfhdaigfspaltaa gqfggggadgsiiahsnielafpanggltdtiealravginhgvsfgdliqfatavgmsn cpgsprlefltgrsnssqpsppslipgpgntvtaildrmgdagfspdevvdllaahslas qeglnsaifrspldstpqvfdtqfyietllkgttqpgpslgfaeelspfpgefrmrsdal lardsrtacrwqsmtssnevmgqryraamakmsvlgfdrnaltdcsdvipsavsnnaapv ipggltvddievscpsepfpeiatasgplpslapap