>2g73A (A:) observed residues (from ATOM records)
ehvillnaqgvptgtlekyaahtadtrlhlafsswlfnakgqllvtrralskkawpgvwt
nsvcghpqlgesnedavirrcryelgveitppesiypdfrfratdpsgivenevcpvfaa
rttsalqinddevmdyqwcdladvlhgidatpwafspwmvmqatnrearkrlsaft