>1t83B (B:) observed residues (from ATOM records)
pellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkp
reeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytl
ppsreemtknqvsltclvkgfypsdiavewesngqpennykttppvldsdgsfflysklt
vdksrwqqgnvfscsvmhealhnhytqkslsl