Chains and heterogens:
PDB Chain Sequences:
>2yfpA (A:) skgeelftgvvpilveldgdvnghkfsvsgegegdatygkltlkficttgklpvpwptlv ttfshglqcfarypdhmkrhdffksampegyvqertiffkddgnyktraevkfegdtlvn rielkgidfkedgnilghkleynynsgnvyimadkqkngikvnfkirhniedgsvqladh yqqntpigdgpvllpdnhylsyqsalskdpnekrdhmvllefvtaagi