>2dc4B (B:) observed residues (from ATOM records)
meievkfrvnfedikrkieglgakffgieeqedvyfelpspkllrvrkinntgksyityk
eildkrneefyelefevqdpegaielfkrlgfkvqgvvkkrrwiyklnnvtfelnrveka
gdfldievitsnpeegkkiiwdvarrlglkeedvepklyielin