Chains and heterogens:
PDB Chain Sequences:
>1pckA (A:) mekflviagpcaieseelllkvgeeikrlsekfkevefvfkssfdkanrssihsfrghgl eygvkalrkvkeefglkittdiheswqaepvaevadiiqipaflcrqtdlllaaaktgra vnvkkgqflapwdtknvveklkfggakeiyltergttfgynnlvvdfrslpimkqwakvi ydathsvqlpgglgdksggmrefifpliraavavgcdgvfmethpepekalsdastqlpl sqlegiieaileirevaskyyetipvk
>1pckA (A:) ekflviagpcaieseelllkvgeeikrlsekfkevefvfkssfdkanrssihsfrghgle ygvkalrkvkeefglkittdiheswqaepvaevadiiqipaflcrqtdlllaaaktgrav nvkkgqflapwdtknvveklkfggakeiyltergttfgynnlvvdfrslpimkqwakviy dathsvqlpgglgmrefifpliraavavgcdgvfmethpepekalsdastqlplsqlegi ieaileirevaskyyeti
>1pckB (B:) mekflviagpcaieseelllkvgeeikrlsekfkevefvfkssfdkanrssihsfrghgl eygvkalrkvkeefglkittdiheswqaepvaevadiiqipaflcrqtdlllaaaktgra vnvkkgqflapwdtknvveklkfggakeiyltergttfgynnlvvdfrslpimkqwakvi ydathsvqlpgglgdksggmrefifpliraavavgcdgvfmethpepekalsdastqlpl sqlegiieaileirevaskyyetipvk
>1pckB (B:) kflviagpcaieseelllkvgeeikrlsekfkevefvfkssfdkanrssihsfrghgley gvkalrkvkeefglkittdiheswqaepvaevadiiqipaflcrqtdlllaaaktgravn vkkgqflapwdtknvveklkfggakeiyltergttfgynnlvvdfrslpimkqwakviyd athsvqlpggmrefifpliraavavgcdgvfmethpepekalsdastqlplsqlegiiea ileirevaskyyeti