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N-Glycosylation Dictates Proper Processing Of Organic Anion Transporting Polypeptide 1b1, Juan Yao, Weifang Hong, Jiujiu Huang, Kai Zhan, Hong Huang, Mei Hong
N-Glycosylation Dictates Proper Processing Of Organic Anion Transporting Polypeptide 1b1, Juan Yao, Weifang Hong, Jiujiu Huang, Kai Zhan, Hong Huang, Mei Hong
School of Information Faculty Publications
Organic anion transporting polypeptides (OATPs) have been extensively recognized as key determinants of absorption, distribution, metabolism and excretion (ADME) of various drugs, xenobiotics and toxins. Putative N-glycosylation sites located in the extracellular loops 2 and 5 is considered a common feature of all OATPs and some members have been demonstrated to be glycosylated proteins. However, experimental evidence is still lacking on how such a post-translational modification affect the transport activity of OATPs and which of the putative glycosylation sites are utilized in these transporter proteins. In the present study, we substituted asparagine residues that are possibly involved in N-glycosylation with …