>3q5yB (B:) observed residues (from ATOM records)
dsgvvqsprhiikekggrsvltcipisghsnvvwyqqtlgkelkfliqhyekverdkgfl
psrfsvqqfddyhsemnmsaleledsamyfcasslrwgdeqyfgpgtrltvledlrnvtp
pkvslfepskaeiankqkatlvclargffpdhvelswwvngkevhsgvstdpqaykesny
syslssrlrvsatfwhnprnhfrcqvqfhglseedkwpegspkpvtqnisaeawgrad