>6N4D_1|Chains A, B, C, D|Neuraminidase|unidentified influenza virus (11309) GSGDSGSPGLEYRNWSKPQCQITGFAPFSKDNSIRLSAGGDIWVTREPYVSCDHSKCYQFALGQGTTLNNKHSNSTIHDRTSHRTLLMNELGVPFHLGTKQVCIAWSSSSCHDGKAWLHVCVTGDDRNATASFVYNGMLVDSIGSWSRNILRTQESECVCINGTCTVVMTDGSASGRADTRILFIREGKIIHISPLSGSAQHIEECSCYPRYPNVRCVCRDNWKGSNRPVIDINMADYNINSSYVCSGLVGDTPRNDDSSSSSNCKDPNNERGNPGVKGWAFDNDNDVWMGRTISKDLRSGYETFKVIGGWTTANSKSQVNRQVIVDNNNWSGYSGIFSVEGKSCVNRCFYVELIRGGPQETRVWWTSNSIVVFCGTSGTYGTGSWPDGANINFMPI