Linus Chang

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HLA-B*4402 and B*4403 are naturally occurring MHC class I alleles that are both found at a high frequency in all human populations, and yet they only differ by one residue on the alpha2 helix (B*4402 Asp156-->B*4403 Leu156). CTLs discriminate between HLA-B*4402 and B*4403, and these allotypes stimulate strong mutual allogeneic responses reflecting their(More)
HLA class I polymorphism creates diversity in epitope specificity and T cell repertoire. We show that HLA polymorphism also controls the choice of Ag presentation pathway. A single amino acid polymorphism that distinguishes HLA-B*4402 (Asp116) from B*4405 (Tyr116) permits B*4405 to constitutively acquire peptides without any detectable incorporation into(More)
Since 2005 the Taiwanese government has invested over $1.2 billion into the M-Taiwan program to bolster Taiwan’s broadband mobile communications industry and infrastructure. In addition to building a fiber backbone and providing R&D grants for developing new technologies and novel applications, it has also co-funded the constructions of four(More)
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