Distinct but Dispensable N-Glycosylation of Human CD69 Proteins

作者: Barbara A. Vance , Michael J. Bennett , Yvona Ward , Ronald G. Gress , Kelly P. Kearse

DOI: 10.1006/ABBI.1999.1322

关键词:

摘要: Human CD69 is uniquely glycosylated at typical (Asn-X-Ser/Thr) and atypical (Asn-X-Cys) motifs, which represents the molecular basis for formation of homodimers heterodimers. Here we examined importance N-glycosylation assembly intracellular transport proteins using mutant molecules that specifically lack N-glycan attachment motifs. These studies verify Cys residues in triplet sequences addition to human endoplasmic reticulum (ER). In addition, these data demonstrate monoglycosylated (bearing N-glycans exclusively or sites) aglycosylated (lacking N-glycans) efficiently dimerize ER have similar stability as wild-type molecules. Finally, results show lacking sites are transported plasma membrane.

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