Chains and heterogens:
PDB Chain Sequences:
>1kt1A (A:) kkdrgvlkivkrvghgeetpmigdrvyvhyngklangkkfdsshdrnepfvfsigkgqvi kawdigvatmkkgeichllckpeyaygatgslpkipsnatlffevelldfkgedlledgg iirrtkrrgegysnpnegarvqihlegrcggrvfdcrdvaftvgegedhdipigidkale kmqreeqcilhlgprygfgeagkpkfgiepnaeliyevtlksfekakeswemdtkekleq aaivkekgtvyfkggkyvqaviqygkivswlemeyglsekeskasesfllaaflnlamcy lklreytkaveccdkalgldsanekglyrrgeaqllmnefesakgdfekvlevnpqnkaa rlqifmcqkkakehnerdrrtyanmfkkfaeqda
>1kt1A (A:) kkdrgvlkivhgeetpmigdrvyvhyngklanpfvfsigkgqvikawdigvatmkkgeic hllcaygatgslpkipsnatlffevelldfkgedlledggiirrtkrrgegysnpnegar vqihlegrcggrvfdcrdvaftvgegedhdipigidkalekmqreeqcilhlgprygfge agkpkfgiepnaeliyevtlksfekakeswemdtkekleqaaivkekgtvyfkggkyvqa viqygkivswlemeyglsekeskasesfllaaflnlamcylklreytkaveccdkalgld sanekglyrrgeaqllmnefesakgdfekvlevnpqnkaarlqifmcqkkakehnerdrr tyanmfkkfaeqda