Chains and heterogens:
PDB Chain Sequences:
>2a9cA (A:) dpfagdpprhpglrvnsqkpfnaeppaellaerfltpnelfftqnhlpvpavepssyrlr vdgpgggtlslslaelrsrfpkhevtatlqcagnrrsemsrvrpvkglpwdigaistarw ggarlrdvllhagfpeelqgewhvcfegldadpggapygasipygralspaadvllayem ngtelprdhgfpvrvvvpgvvgarsvkwlrrvavspdespshwqqndykgfspcvdwdtv dyrtapaiqelpvqsavtqprpgaavppgeltvkgyawsgggrevvrvdvsldggrtwkv arlmgdkappgrawawalweltvpveagteleivckavdssynvqpdsvapiwnlrgvls tawhrvrvsvqd
>2a9cA (A:) rvnsqkpfnaeppaellaerfltpnelfftqnhlpvpavepssyrlrvdgpgggtlslsl aelrsrfpkhevtatlqcagnrrsemsrvrpvkglpwdigaistarwggarlrdvllhag fpeelqgewhvcfegldadpggapygasipygralspaadvllayemngtelprdhgfpv rvvvpgvvgarsvkwlrrvavspdespshwqqndykgfspcvdwdtvdyrtapaiqelpv qsavtqprpgaavppgeltvkgyawsgggrevvrvdvsldggrtwkvarlmgdkappgra wawalweltvpveagteleivckavdssynvqpdsvapiwnlrgvlstawhrvrvsvqd
>2a9cB (B:) dpfagdpprhpglrvnsqkpfnaeppaellaerfltpnelfftqnhlpvpavepssyrlr vdgpgggtlslslaelrsrfpkhevtatlqcagnrrsemsrvrpvkglpwdigaistarw ggarlrdvllhagfpeelqgewhvcfegldadpggapygasipygralspaadvllayem ngtelprdhgfpvrvvvpgvvgarsvkwlrrvavspdespshwqqndykgfspcvdwdtv dyrtapaiqelpvqsavtqprpgaavppgeltvkgyawsgggrevvrvdvsldggrtwkv arlmgdkappgrawawalweltvpveagteleivckavdssynvqpdsvapiwnlrgvls tawhrvrvsvqd
>2a9cB (B:) rvnsqkpfnaeppaellaerfltpnelfftqnhlpvpavepssyrlrvdgpgggtlslsl aelrsrfpkhevtatlqcagnrrsemsrvrpvkglpwdigaistarwggarlrdvllhag fpeelqgewhvcfegldadpggapygasipygralspaadvllayemngtelprdhgfpv rvvvpgvvgarsvkwlrrvavspdespshwqqndykgfspcvdwdtvdyrtapaiqelpv qsavtqprpgaavppgeltvkgyawsgggrevvrvdvsldggrtwkvarlmgdkappgra wawalweltvpveagteleivckavdssynvqpdsvapiwnlrgvlstawhrvrvsvqd