Chains and heterogens:
PDB Chain Sequences:
>1n3cA (A:) gseghrtlastpalwasipcprselrldlvlpsgqsfrwreqspahwsgvladqvwtltq teeqlhctvyrgdksqasrptpdeleavrkyfqldvtlaqlyhhwgsvdshfqevaqkfq gvrllrqdpieclfsficssnnniaritgmverlcqafgprliqlddvtyhgfpslqala gpeveahlrklglgyraryvsasaraileeqgglawlqqlressyeeahkalcilpgvgt kvadciclmaldkpqavpvnvhmwhiaqrdyswhpttsqakgpspqtnkelgnffrslwg pyagwaqavlfsadlrq
>1n3cA (A:) gseghrtlastpalwasipcprselrldlvlpsgqsfrwreqspahwsgvladqvwtltq teeqlhctvyrsqasrptpdeleavrkyfqldvtlaqlyhhwgsvdshfqevaqkfqgvr llrqdpieclfsficssnnniaritgmverlcqafgprliqlddvtyhgfpslqalagpe veahlrklglgyraryvsasaraileeqgglawlqqlressyeeahkalcilpgvgtkva dciclmaldkpqavpvnvhmwhiaqrdyswhpttsqakgpspqtnkelgnffrslwgpya gwaqavlfsadlrq