>4p3yB (B:) observed residues (from ATOM records) snaagkdytvianpgkvevpgkievreffwygcphcfklephmqtwlkqipsdvrfvrtp aamnkvweqgartyytsealgvrkrthlplfhaiqvngqqifdqasaakfftrygvpeqk fnstynsfavtakvaesnklaqqyqltgvpavvvngkyvvqgedgkvtqvlnyliekerk a