>5l1sA (A:) observed residues (from ATOM records)
tdlprlpfdnpdimgiapqmlalqkegpiarvgtagedawlvtrydevrtlladrrlrls
npnpqpsaksaarafmvalmagddheteparhaqmrslliprfstrrlrlmktriehhvd
elldqlaasappvdlhrvlsfrlptmvvcdllgvpladrerfgqwargtfdqsdnehsan
tfqqvvdymlelvarkrvepgddilseliaekdgalsdadiahlgnavlllgyettivri
dlgtllllrnpvqraqlaedpglapaaveeilrlgvggkgsnalipryahgditvgetvi
rtgdavmlaigaanyddrafpdgglfdltrvrprshlafghgarhcigrtlarieltavf
erlfrrlpdlrlavpeeslrwqehritggfdeipvtf