>3a28C (C:) observed residues (from ATOM records)
skvamvtggaqgigrgiseklaadgfdiavadlpqqeeqaaetiklieaadqkavfvgld
vtdkanfdsaideaaeklggfdvlvnnagiaqikpllevteedlkqiysvnvfsvffgiq
aasrkfdelgvkgkiinaasiaaiqgfpilsaysttkfavrgltqaaaqelapkghtvna
yapgivgtgmweqidaelskingkpigenfkeysssialgrpsvpedvaglvsflasens
nyvtgqvmlvdggmlyn