>3r52D (D:) observed residues (from ATOM records)
lqlaahsdarsgpvgsnggqfwsfrpvrplnkivlsfsgspdqtlnlisitfssnptdii
tvggvgpepltytetvnidgdiieisgmianykgynvirsikfttnkkeygpyganagtp
fnikipdgnkivgffgnsgwyvdaigayytak