Chains and heterogens:
PDB Chain Sequences:
>2a9bA (A:) dpfagdpprhpglrvnsqkpfnaeppaellaerfltpnelfftqnhlpvpavepssyrlr vdgpgggtlslslaelrsrfpkhevtatlqcagnrrsemsrvrpvkglpwdigaistarw ggarlrdvllhagfpeelqgewhvcfegldadpggapygasipygralspaadvllayem ngtelprdhgfpvrvvvpgvvgarsvkwlrrvavspdespshwqqndykgfspcvdwdtv dyrtapaiqelpvqsavtqprpgaavppgeltvkgyawsgggrevvrvdvsldggrtwkv arlmgdkappgrawawalweltvpveagteleivckavdssynvqpdsvapiwnlrgvls tawhrvrvsvqd