>4e52A (A:) observed residues (from ATOM records)
vaslrqqvealqgqvqhlqaafsqykkvelfpngqsvgekifktagfvkpfteaqllctq
aggqlasprsaaenaalqqlvvakneaaflsmtdsktegkftyptgeslvysnwapgepn
ddggsedcveiftngkwndracgekrlvvcef