>1t89B (B:) observed residues (from ATOM records)
apellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktk
preeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvyt
lppsreemtknqvsltclvkgfypsdiavewesngqpennykttppvldsdgsfflyskl
tvdksrwqqgnvfscsvmhealhnhytqkslsl