Chains and heterogens:
PDB Chain Sequences:
>1dad_ (-) skryfvtgtdtevgktvascallqaakaagyrtagykpvasgsektpeglrnsdalalqr nsslqldyatvnpytfaeptsphiisaqegrpieslvmsaglraleqqadwvlvegaggw ftplsdtftfadwvtqeqlpvilvvgvklgcinhamltaqviqhagltlagwvandvtpp gkrhaeymttltrmipapllgeipwlaenpenaatgkyinlall