>2c3nB (B:) observed residues (from ATOM records)
glelyldllsqpcravyifakkndipfelrivdlikgqhlsdafaqvnplkkvpalkdgd
ftltesvaillyltrkykvpdywypqdlqararvdeylawqhttlrrsclralwhkvmfp
vflgepvspqtlaatlaeldvtlqlledkflqnkafltgphisladlvaitelmhpvgag
cqvfegrpklatwrqrveaavgedlfqeahevilkakdfppadptikqklmpwvlamir