TAP-associated glycoprotein also known as tapasin or TAPBP is a protein that in humans is encoded by the TAPBP gene. == Function == This gene encodes a transmembrane glycoprotein that mediates interaction between newly-assembled major histocompatibility complex (MHC) class I molecules and the transporter associated with antigen processing (TAP), w...
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http://en.wikipedia.org/wiki/Tapasin
Accessory protein required for the interaction of MHC Class I with TAPs thus ensuring efficient peptide binding. Tapasin is related to the immunoglobulin superfamily and has an ER retention signal.
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http://www.encyclo.co.uk/visitor-contributions.php
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