TAPBP and swine influenza: Besides, it has been recently described that an SNP (rs2071888/G allele and GG genotype) in TAPBP (TAP binding protein or Tapasin), a critical cofactor required for the assembly of HLA class I with exogenous peptides obtained by intracellular degradation through proteasome, is associated with a higher risk for Influenza A H1N1 virus infection in a Mexican mestizo population, suggesting a critical role of the antigen presentation process in the development of the disease [152].