>2f2eB (B:) observed residues (from ATOM records)
shkqascpvarpldvigdgwsmlivrdafegltrfgefqkslglaknilaarlrnlvehg
vmvavpaesgshqeyrltdkgralfpllvairqwgedyffapdeshvrlverdsgqpvpr
lqvragdgsplaaedtrvsr