Table 1. Comparison of 8 gene segments of avian influenza virus (H7N3) A/chicken/Saskatchewan/HR-00011/2007 with influenza virus genes from GenBank with highest sequence identity, Saskatchewan, Canada, 2007*.
| Gene | Nucleotide identity | % | Amino acid identity | % |
|---|---|---|---|---|
| PB2 | A/laughing gull/Delaware/42/2006 (H7N3) | 98 | A/mallard/Ohio/656/2002 (mixed) | 98 |
| PB1 | A/mallard/Alberta/149/2002 (H2N4) | 98 | A/mallard/Alberta/149/2002 (H2N4) | 99 |
| PA | A/snow goose/Maryland/353/2005 (H6N1) | 98 | A/mallard/Ohio/249/98 (H6N1) | 99 |
| H7 | A/mallard/Delaware/418/2005 (H7N3) | 96 | A/environment/Maryland/566/2006 (H7N9) | 97 |
| NP | A/environment/Maryland/1176/2005 (H3N6) | 98 | A/GSC_chicken/British Columbia/2004 (H7N3) | 99 |
| N3 | A/mallard/Delaware/418/2005 (H7N3) | 98 | A/environment/Maryland/261/2006 (H7N3) | 98 |
| M1 | A/mallard/Maryland/1131/2005 (H12N5) | 98 | A/chicken/Korea/S6/2003 (H3N2) | 98 |
| M2 | A/chicken/Singapore/93 (H10N5) | 98 | A/mallard duck/Alberta/376/85 (H2N3) | 98 |
| NS1 | A/mallard/Alberta/30/2001 (H4N8) | 98 | A/pintail/Alaska/779/2005 (H3N8) | 98 |
| NS2 | A/blue-winged teal/Louisanna/240B/88 (H4N6) | 99 | A/mallard/Delaware/418/2005 (H7N3) | 98 |
*PB2, RNA polymerase subunit B2; PB1, RNA polymerase subunit B1; PA, RNA polymerase subunit A; H7, hemagglutinin 7; NP, nucleoprotein; N3, neuraminidase 3; M1, matrix protein 1; M2, matrix protein 2; NS1, nonstructural protein 1; NS2, nonstructural protein 2.