Chains and heterogens:
PDB Chain Sequences:
>3sn7A (A:) gshmsictseewqglmqftlpvrlckeielfhfdigpfenmwpgifvymvhrscgtscfe leklcrfimsvkknyrrvpyhnwkhavtvahcmyailqnnhtlftdlerkglliaclchd ldhrgfsnsylqkfdhplaalyststmeqhhfsqtvsilqleghnifstlssseyeqvle iirkaiiatdlalyfgnrkqleemyqtgslnlnnqshrdrviglmmtacdlcsvtklwpv tkltandiyaefwaegdemkklgiqpipmmdrdkkdevpqgqlgfynavaipcyttltqi lpptepllkacrdnlsqwekvirgeetatwisspsvaqkaaased
>3sn7A (A:) msictseewqglmqftlpvrlckeielfhfdigpfenmwpgifvymvhrscgtscfelek lcrfimsvkknyrrvpyhnwkhavtvahcmyailqnnhtlftdlerkglliaclchdldh rgfsnsylqkfdhplaalyststmeqhhfsqtvsilqleghnifstlssseyeqvleiir kaiiatdlalyfgnrkqleemyqtgslnlnnqshrdrviglmmtacdlcsvtklwpvtkl tandiyaefwaegdemkklgiqpipmmdrdkkdevpqgqlgfynavaipcyttltqilpp tepllkacrdnlsqwekvirge
>3sn7B (B:) gshmsictseewqglmqftlpvrlckeielfhfdigpfenmwpgifvymvhrscgtscfe leklcrfimsvkknyrrvpyhnwkhavtvahcmyailqnnhtlftdlerkglliaclchd ldhrgfsnsylqkfdhplaalyststmeqhhfsqtvsilqleghnifstlssseyeqvle iirkaiiatdlalyfgnrkqleemyqtgslnlnnqshrdrviglmmtacdlcsvtklwpv tkltandiyaefwaegdemkklgiqpipmmdrdkkdevpqgqlgfynavaipcyttltqi lpptepllkacrdnlsqwekvirgeetatwisspsvaqkaaased
>3sn7B (B:) hmsictseewqglmqftlpvrlckeielfhfdigpfenmwpgifvymvhrscgtscfele klcrfimsvkknyrrvpyhnwkhavtvahcmyailqnnhtlftdlerkglliaclchdld hrgfsnsytstmeqhhfsqtvsilqleghnifstlssseyeqvleiirkaiiatdlalyf gnrkqleemyqtgslnlnnqshrdrviglmmtacdlcsvtklwpvtkltandiyaefwae gdemkklgiqpipmmdrdkkdevpqgqlgfynavaipcyttltqilpptepllkacrdnl sqwekvirge