Plays a critical role in induction and maintenance of immune tolerance to self. As a ligand for the inhibitory receptor PDCD1, modulates the activation threshold of T-cells and limits T-cell effector response (PubMed:11238124). The PDCD1-mediated inhibitory pathway is exploited by tumors to attenuate anti-tumor immunity and facilitate tumor survival (By similarity). May costimulate helper T-cell subsets through a yet unknown activating receptor (PubMed:11015443, PubMed:12719480).
序列
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来源宿主
E.coli
溶解建议
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保存建议
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其他
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