>3r6sB (B:) observed residues (from ATOM records)
gvqeilsragifqgvdptavnnliqdmetvrfprgatifdegepgdrlyiitsgkvklar
hapdgrenlltimgpsdmfgelsifdpgprtssavcvtevhaatmnsdmlrnwvadhpai
aeqllrvlarrlrrtnasladliftdvpgrvaktllqlanrfgtqeagalrvnhdltqee
iaqlvgasretvnkalatfahrgwirlegksvlivdtehlarrar