Chains and heterogens:
PDB Chain Sequences:
>1kkhA (A:) prgshmiietpskvilfgehavvygyraismaidltstieiketqedeiilnlndlnksl glnlneikninpnnfgdfkyclcaikntldylniepktgfkinisskipiscglgssasi tigtikavsgfynkelkddeiaklgymvekeiqgkasitdtstitykgileiknnkfrki kgefeeflknckflivyaekrkkktaelvnevakienkdeifkeidkvidealkiknked fgklmtknhellkklnistpkldrivdignrfgfgakltgaggggcviilvneekekell kelnkedvrifncrmmn