Chains and heterogens:
PDB Chain Sequences:
>1nsyA (A:) smqekimrelhvkpsidpkqeiedrvnflkqyvkktgakgfvlgisggqdstlagrlaql avesireeggdaqfiavrlphgtqqdeddaqlalkfikpdkswkfdikstvsafsdqyqq etgdqltdfnkgnvkartrmiaqyaiggqegllvlgtdhaaeavtgfftkygdggadllp ltgltkrqgrtllkelgaperlylkeptadlldekpqqsdetelgisydeiddylegkev sakvsealekrysmtehkrqvpasmfddwwk
>1nsyB (B:) smqekimrelhvkpsidpkqeiedrvnflkqyvkktgakgfvlgisggqdstlagrlaql avesireeggdaqfiavrlphgtqqdeddaqlalkfikpdkswkfdikstvsafsdqyqq etgdqltdfnkgnvkartrmiaqyaiggqegllvlgtdhaaeavtgfftkygdggadllp ltgltkrqgrtllkelgaperlylkeptadlldekpqqsdetelgisydeiddylegkev sakvsealekrysmtehkrqvpasmfddwwk