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