>1c4fA (A:) observed residues (from ATOM records)
kgeelftgvvpilveldgdvnghkfsvsgegegdatygkltlkficttgklpvpwptlvt
tfgygvqcfsrypdhmkrhdffksampegyvqertiffkddgnyktraevkfegdtlvnr
ielkgidfkedgnilghkleynynshnvyimadkqkngikvnfkirhniedgsvqladhy
qqntpigdgpvllpdnhylstqsalskdpnekrdhmvllefvtaagi