The structure of hemagglutinin from avian-origin H7N9 influenza virus

Structures and receptor binding of hemagglutinins from human-infecting H7N9 influenza viruses.

ICLGHHAVSNGTKVNTLTERGVEVVNATETVERTNIPRICSKGKRTVDLGQCGLLGTITGPPQCDQFLEFSADLIIERRE
GSDVCYPGKFVNEEALRQILRESGGIDKEAMGFTYSGIRTNGATSACRRSGSSFYAEMKWLLSNTDNAAFPQMTKSYKNT
RKSPALIVWGIHHSVSTAEQTKLYGSGNKLVTVGSSNYQQSFVPSPGARPQVNGLSGRIDFHWLMLNPNDTVTFSFNGAF
IAPDRASFLRGKSMGIQSGVQVDANCEGDCYHSGGTIISNLPFQNIDSRAVGKCPRYVKQRSLLLATGMKNVPE

GLFGAIAGFIENGWEGLIDGWYGFRHQNAQGEGTAADYKSTQSAIDQITGKLNRLIEKTNQQFELIDNEFNEVEKQIGNV
INWTRDSITEVWSYNAELLVAMENQHTIDLADSEMDKLYERVKRQLRENAEEDGTGCFEIFHKCDDDCMASIRNNTYDHS
KYREEAMQN

16% w/v PEG 3350, 0.2 M lithium sulfate, 0.1 M Tris, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 291K

homotrimer, virus attachment and membrane fusion, VIRAL PROTEIN