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Table 6 Swine-human signature positions identified using unadjusted (U) and adjusted (A) entropy for PB2 proteins during 2004–2014

From: Identifying host-specific amino acid signatures for influenza A viruses using an adjusted entropy measure

Year Type+ Signatures n++
2004 U 9 44 81 91 105 114 199 354 355 395 399 411 447 475 490 491 547 567 627 702 20
2004 A 9 44 81 91 105 109 114 199 340 354 355 368 395 399 411 447 475 478 490 491 535 547 567 591 627 645 667 702 28
2005 U 44 64 81 91 105 114 199 354 395 399 411 447 475 490 491 567 627 702 18
2005 A 9 44 64 65 91 109 114 199 340 354 368 395 399 411 475 478 490 491 535 547 567 591 627 667 674 702 25
2006 U 9 44 81 91 114 199 354 355 395 399 411 447 475 490 491 547 567 627 702 19
2006 A 9 44 65 91 109 114 199 340 354 355 368 395 399 411 443 447 475 478 490 491 547 560 567 591 627 645 702 27
2007 U 9 44 64 105 106 109 114 199 354 355 368 395 399 447 475 490 491 547 567 627 661 674 702 23
2007 A 9 44 64 81 91 105 106 109 114 199 292 340 354 355 368 375 395 399 411 447 475 478 490 491 535 547 560 567 591 627 645 661 667 674 702 35
2008 U 9 44 64 81 105 114 354 355 395 399 447 475 490 491 547 567 627 674 702 19
2008 A 9 44 64 65 73 81 105 109 114 127 199 292 340 354 355 395 399 411 447 451 456 475 478 490 491 547 560 567 591 627 645 667 674 702 34
2009 U NA 0
2009 A 54 315 2
2010 U NA 0
2010 A 54 1
2011 U NA 0
2011 A 54 315 354 3
2012 U 344 1
2012 A 54 315 344 354 4
2013 U NA 0
2013 A 66 293 315 354 560 731 6
2014 U NA 0
2014 A 66 315 354 560 731 5
  1. +U = unadjusted, A = adjusted entropy
  2. ++n = number of signatures