>4r1pB (B:) observed residues (from ATOM records)
lslrpyefwfvtgsqhlygeealkqveehsrimvnewnrdsvfpfpfvfksvvttpeeir
rvcleanaseqcagvvtwmhtfspakmwiggllelrkpllhlhtqfnrdipwdsidmdfm
nlnqsahgdreygfigarmgvarkvvvghwedpevrerlakwmrtavafaesrnlkvarf
gdnmrevavtegdkvgaqiqfgwsvngygigdlvqyirdvseqkvnelldeyeelydivp
agrqegpvresireqarielglkaflqdgnftaftttfedlhgmkqlpglavqrlmaegy
gfggegdwktaalvrlmkvmadgkgtsfmedytyhfepgnelilgahmlevcptiaatrp
rvevhplsiggkedparlvfdggegaavnaslidlghrfrlivnevdavkpehdmpklpv
arilwkprpslrdsaeawilaggahhtcfsfavtteqlqdfaemagiecvvinehtsvss
fknelkwnevfw