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Immunology

Optimal T-cell activation requires CD6/CD166 interaction

Published in Drug Week, June 11th, 2004

The interaction of CD6 and CD166 is needed for optimal T-cell activation.

According to recent research from England, the "T-cell surface glycoprotein CD6 binds CD166 in the first example of an interaction between a scavenger receptor cysteine-rich domain and an immunoglobulin-like domain."

N.J. Hassan and coauthors at the University of Oxford found that "these proteins interact with a KD =0.4-1.0 microM and Koff {{>=}}0.4-0.63/s, typical of many leukocyte membrane protein interactions."

"CD166 also interacts in a homophilic manner but with around 100-fold lower affinity (KD =29-48 microM and...

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