>4bluA (A:) observed residues (from ATOM records)
lsyrhsfhagnhadvlkhtvqsliieslkekdkpflyldthagagryqlgsehaertgey
legiariwqqddlpaeleayinvvkhfnrsgqlryypgspliarlllreqdslqltelhp
sdypllrsefqkdsrarvekadgfqqlkaklppvsrrglilidppyemktdyqavvsgia
egykrfatgiyalwypvvlrqqikrmihdleatgirkilqielavlpdsdrrgmtasgmi
vinppwkleqqmnnvlpwlhsklvpagtghatvswivpe