>2v63B (B:) observed residues (from ATOM records)
agagfkagvkdyrltyytpdyvvrdtdilaafrmtpqpgvppeecgaavaaesstgtwtt
vwtdgltsldrykgrcydiepvpgednqyiayvaypidlfeegsvtnmftsivgnvfgfk
alralrledlrippayvktfvgpphgiqverdklnkygrgllgctikpklglsaknygra
vyeclrggldftkddenvnsqpfmrwrdrflfvaeaiykaqaetgevkghylnatagtce
emmkravcakelgvpiimhdyltggftantslaiycrdnglllhihramhavidrqrnhg
ihfrvlakalrmsggdhlhsgtavgklegerevtlgfvdlmrddyvekdrsrgiyftqdw
csmpgvmpvasggihvwhmpalveifgddaclqfgggtlghpwgnapgaaanrvaleact
qarnegrdlareggdvirsackwspelaaacevwkeikfefdtidk