含itam的跨膜接头DAP12在淋巴细胞和髓细胞功能中的作用

Lewis L Lanier, Alexander B.H Bakker
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引用次数: 215

摘要

DAP12是一种携带itam的跨膜衔接蛋白,与自然杀伤细胞(NK)和髓细胞中的受体非共价结合,并通过Syk和ZAP-70酪氨酸激酶激活途径提供信号功能。缺乏DAP12 (DAP12−/−)的人和小鼠表现出正常的造血细胞发育。然而,DAP12−/−人类会出现早老性痴呆和骨囊肿,而DAP12−/−小鼠表现出免疫应答受损。
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The ITAM-bearing transmembrane adaptor DAP12 in lymphoid and myeloid cell function

DAP12, an ITAM-bearing transmembrane adaptor protein, associates non-covalently with receptors in natural killer (NK) and myeloid cells, and provides signaling function via the Syk and ZAP-70 tyrosine kinase activation pathways. Humans and mice lacking DAP12 (DAP12−/−) show normal development of hematopoietic cells. However, DAP12−/− humans develop presenile dementia and bone cysts, and DAP12−/− mice show impaired immune responses.

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