Researchers in Sweden used advanced DNA analysis to find the protein responsible for the Vel blood group antigen. This solves the long-standing problem of identifying donors who lack the antigen in order to help meet the need for Vel-negative blood. Lund University researchers including Jill Storry, whose work was supported by AABB's National Blood Foundation, say the SMIM1 protein can be identified by routine DNA testing. Two studies in the topic were published in the journal Nature Genetics.

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