>1z0aB (B:) observed residues (from ATOM records)
yaylfkyiiigdtgvgksclllqftdkrfdltigvefgarmitidgkqiklqiwdtagqe
sfrsitrsyyrgaagallvyditrrdtfnhlttwledarqhsnsnmvimlignksdlesr
revkkeegeafarehglifmetsaktasnveeafintakeiye