Chains and heterogens:
PDB Chain Sequences:
>2csmA (A:) mdftkpetvlnlqnirdelvrmedsiifkfiershfatcpsvyeanhpgleipnfkgsfl dwalsnleiahsrirrfespdetpffpdkiqksflpsinypqilapyapevnyndkikkv yiekiipliskrdgddknnfgsvatrdieclqslsrrihfgkfvaeakfqsdiplytkli kskdvegimknitnsaveekilerltkkaevygvdptnesgerritpeylvkiykeivip itkeveveyllrrl
>2csmA (A:) mdftkpetvlnlqnirdelvrmedsiifkfiershfatcpsvyeanhpgleipnfkgsfl dwalsnleiahsrirrfespdetpffpdkiqksflpsinypqilapyapevnyndkikkv yiekiipliskrdgddknnfgsvatrdieclqslsrrihfgkfvaeakfqsdiplytkli kskdvegimknitnsaveekilerltkkaevygvritpeylvkiykeivipitkevevey llrrl