So What Is Elastin?

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SO WHAT IS ELASTIN? Some Questions and Answers *Howard M. Lenhoff, Executive Vice President Williams Syndrome Foundation, and Professor of Developmental and Cell Biology University of California, Irvine, CA 92697-2300 A gene for elastin is missing: Dr. Colleen Morris of the University of Nevada and her coworkers at the University of Utah discovered that all individuals with Williams syndrome tested lacked a small piece of one of their two chromosomes called Chromosome # 7 [NOTE: Our chromosomes come in pairs, one from each parent]. In individuals without WS both of their chromosome # 7s were intact. One of the genes in the missing piece of chromosome #7 was identified as the gene for making elastin. In the following, I try to answer some of the questions that you may have regarding genes, elastin, and the consequences of this discovery for your children.