Chains and heterogens:
PDB Chain Sequences:
>1r16A (A:) ivptrelenvflgrckdyeitryldilprvrsdcsalwkdffkafsfknpcdldlgsykd fftsaqqqlpknkvmfwsgvydeahdyantgrkyitledtlpgymlnslvwcgqranpgf nekvcpdfktcpvqaresfwgmasssyahsaegevtymvdgsnpkvpayrpdsffgkyel pnltnkvtrvkvivlhrlgekiiekcgagslldleklvkakhfafdcvenpravlfllcs dnpnarecrlakrfyria
>1r16A (A:) ivptrelenvflgrckdyeitryldilprvrsdcsalwkdffkafsfknpcdldlgsykd fftsaqqqlpknkvmfwsgvydeahdyantgrkyitledtlpgymlnslvwcgqranpgf nekvcpdfktcpvqaresfwgmasssyahsaegevtymvdgsnpkvpayrpdsffgkyel pnltnkvtrvkvivlhrlgekiiekcgagslldleklvkakhfafdcvenpravlfllcs dnpnarecrla
>1r16B (B:) ivptrelenvflgrckdyeitryldilprvrsdcsalwkdffkafsfknpcdldlgsykd fftsaqqqlpknkvmfwsgvydeahdyantgrkyitledtlpgymlnslvwcgqranpgf nekvcpdfktcpvqaresfwgmasssyahsaegevtymvdgsnpkvpayrpdsffgkyel pnltnkvtrvkvivlhrlgekiiekcgagslldleklvkakhfafdcvenpravlfllcs dnpnarecrlakrfyria
>1r16B (B:) ivptrelenvflgrckdyeitryldilprvrsdcsalwkdffkafsfknpcdldlgsykd fftsaqqqlpknkvmfwsgvydeahdyantgrkyitledtlpgymlnslvwcgqranpgf nekvcpdfktcpvqaresfwgmasssyahsaegevtymvdgsnpkvpayrpdsffgkyel pnltnkvtrvkvivlhrlgekiiekcgagslldleklvkakhfafdcvenpravlfllcs dnpnarecrla