The mechanism of HLA-DM induced peptide exchange in the MHC class II antigen presentation pathway.
The mechanism of HLA-DM induced peptide exchange in the MHC class II antigen presentation pathway.
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DOI:
10.1016/j.coi.2011.11.004
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发表时间:
2012-02
影响因子:
7
通讯作者:
Wucherpfennig KW
中科院分区:
文献类型:
--
作者:
Schulze MS;Wucherpfennig KW
HLA-DM serves a critical function in the loading and editing of peptides on MHC class II molecules. Recent data showed that the interaction cycle between MHC class II molecules and HLA-DM is dependent on the occupancy state of the peptide binding groove. Empty MHC class II molecules form stable complexes with HLA-DM, which are disrupted by binding of high-affinity peptide. Interestingly, MHC class II molecules with fully engaged peptides cannot interact with HLA-DM, and prior dissociation of the peptide N-terminus from the groove is required for HLA-DM binding. There are significant similarities to the peptide loading process for MHC class I molecules, even though it is executed by a distinct set of proteins in a different cellular compartment.
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DOI:
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发表时间:
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