>2gaoA (A:) observed residues (from ATOM records) ssvlqflglykksgklvflgldnagkttllhmltseeltiagmtfttfdlrvwknylpai ngivflvdcadhsrlveskvelnalmtdetisnvpililgnkidrtdaiseeklreifgl ygqttgkgnvtlkelnarpmevfmcsvlkrqgygegfrwlsqyid