>4xuoB (B:) observed residues (from ATOM records)
aakagdillshsfeegttqgwtarggvkvdvtaeqayqgkqslqttgrteawngpslslt
dvvhknevveisgyvklvagsapadlkftverrdgngdtqydqvnaaeqvtdqkwvklqg
qysyeqgsslllylestdakaaylldefqirlvkaa