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Table 5 Amino acid sequence analysis of NA gene of AIV strains

From: The molecular evolutionary characteristics of new isolated H9N2 AIV from East China and the function of vimentin on virus replication in MDCK cells

Site Sequence

Deletion in the stalk

Potential N-glycosylation sites

Hemadsorbing sites

62 ~ 64

61

69

86

146

200

234

402

367 ~ 372

400 ~ 403

431 ~ 433

ITE

NIT

NST

NWS

NGT

NAT

NGT

NWS

KKDSRS

SDNW

PQE

Strains

 Y280

+

–

+

+

+

+

+

+

KEDSRS

+

+

 BJ1

–

+

+

+

+

+

+

+

+

+

+

 F98

+

–

+

+

+

+

+

+

KKDSRS

+

+

 JS7

+

–

NNT

+

+

+

+

+

KVDSRS

+

+

 JSC1

+

–

NNT

+

+

+

+

+

KVDSRS

+

+

 HBC1

+

–

NNT

+

+

+

+

+

KVDSRS

+

+

 LY1

+

–

+

+

+

+

+

+

KVDSRS

+

+

  1. Note:LY1: A/chicken/Shandong/LY1/2017; Y280:A/Duck/Hong Kong/Y280/97; BJ1: A/Chicken/Beijing/1/94; F98: A/Chicken/Shanghai/F/98; JS7: A/chicken/Jiangsu/7/2002; JSC1: A/swine/Jiangsu/C1/2008; HBC1: A/chicken/Hubei/C1/2007. “+”: With the same amino acid sequence; “-”: Without the same amino acid sequence
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Virology Journal

ISSN: 1743-422X