Crystal structure of 2009 pandemic influenza virus hemagglutinin mutant D225E complexed with human receptor analogue LSTc

beta-D-galactose; D-galactose; galactose

N-acetyl-beta-D-glucosamine; 2-acetamido-2-deoxy-beta-D-glucose; 2-acetamido-2-deoxy-D-glucose; 2-acetamido-2-deoxy-glucose; N-ACETYL-D-GLUCOSAMINE

N-acetylneuraminic acid; sialic acid; alpha-sialic acid; O-SIALIC ACID

Molecular basis of the receptor binding specificity switch of the hemagglutinins from both the 1918 and 2009 pandemic influenza A viruses by a D225G substitution

N-acetyl-alpha-neuraminic acid-(2-6)-beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-3)-beta-D-galactopyranose

DTLCIGYHANNSTDTVDTVLEKNVTVTHSVNLLEDKHNGKLCKLRGVAPLHLGKCNIAGWILGNPECESLSTASSWSYIV
ETPSSDNGTCYPGDFIDYEELREQLSSVSSFERFEIFPKTSSWPNHDSNKGVTAACPHAGAKSFYKNLIWLVKKGNSYPK
LSKSYINDKGKEVLVLWGIHHPSTSADQQSLYQNADTYVFVGSSRYSKKFKPEIAIRPKVREQEGRMNYYWTLVEPGDKI
TFEATGNLVVPRYAFAMERNAGSGIIISDTPVHDCNTTCQTPKGAINTSLPFQNIHPITIGKCPKYVKSTKLRLATGLRN
IP

GLFGAIAGFIEGGWTGMVDGWYGYHHQNEQGSGYAADLKSTQNAIDEITNKVNSVIEKMNTQFTAVGKEFNHLEKRIENL
NKKVDDGFLDIWTYNAELLVLLENERTLDYHDSNVKNLYEKVRSQLKNNAKEIGNGCFEFYHKCDNTCMESVKNGTYDYP
KYSE

10% PEG 6000, 5% MPD, 0.1M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K

virus attachment, membrane fusion, VIRAL PROTEIN
CHAIN A AND (RESSEQ 7:75 OR RESSEQ 78:327 )
CHAIN C AND (RESSEQ 7:75 OR RESSEQ 78:327 )
CHAIN E AND (RESSEQ 7:75 OR RESSEQ 78:327 )
CHAIN G AND (RESSEQ 7:75 OR RESSEQ 78:327 )
CHAIN I AND (RESSEQ 7:75 OR RESSEQ 78:327 )
CHAIN K AND (RESSEQ 7:75 OR RESSEQ 78:327 )

DTLCIGYHANNSTDTVDTVLEKNVTVTHSVNLLEDKHNGKLCKLRGVAPLHLGKCNIAGWILGNPECESLSTASSWSYIV
ETPSSDNGTCYPGDFIDYEELREQLSSVSSFERFEIFPKTSSWPNHDSNKGVTAACPHAGAKSFYKNLIWLVKKGNSYPK
LSKSYINDKGKEVLVLWGIHHPSTSADQQSLYQNADTYVFVGSSRYSKKFKPEIAIRPKVRDQEGRMNYYWTLVEPGDKI
TFEATGNLVVPRYAFAMERNAGSGIIISDTPVHDCNTTCQTPKGAINTSLPFQNIHPITIGKCPKYVKSTKLRLATGLRN
IP