>2xoxB (B:) observed residues (from ATOM records)
tvpvalvtgaakrlgsgiaeglhaegyavclhyhrsaaeantlaatlnarrpnsaipvqa
dlsnvapvtlfkrcadlvaacythwgrcdvlvnnreameaaaadlfgsnamapyflikaf
ahrvadtpaeqrgtnysivnmvdamtsqpllgytiytmakgalegltrsaalelaplqir
vngvgpglsaaevsdvviflcsskakyvtgtcvkvd