Structure of natural killer cell receptor KLRG1 bound to E-cadherin reveals basis for MHC-independent missing self recognition.
Structure of natural killer cell receptor KLRG1 bound to E-cadherin reveals basis for MHC-independent missing self recognition.
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DOI:
10.1016/j.immuni.2009.04.019
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发表时间:
2009-07-17
期刊:
影响因子:
32.4
通讯作者:
Mariuzza, Roy A.
中科院分区:
文献类型:
--
作者:
Li, Yili;Hofmann, Maike;Wang, Qian;Teng, Leslie;Chlewicki, Lukasz K.;Pircher, Hanspeter;Mariuzza, Roy A.
The cytolytic activity of natural killer (NK) cells is regulated by inhibitory receptors that detect the absence of self molecules on target cells. Structural studies of missing self recognition have focused on NK receptors that bind MHC. However, NK cells also possess inhibitory receptors specific for non-MHC ligands, notably cadherins, which are down-regulated in metastatic tumors. We determined the structure of killer cell lectin-like receptor G1 (KLRG1) in complex with E-cadherin. KLRG1 mediates missing self recognition by binding to a highly conserved site on classical cadherins, enabling it to monitor expression of several cadherins (E-, N- and R-) on target cells. This site overlaps the site responsible for cell–cell adhesion, but is distinct from the integrin αEβ7 binding site. We propose that E-cadherin may co-engage KLRG1 and αEβ7, and that KLRG1 overcomes its exceptionally weak affinity for cadherins through multipoint attachment to target cells, resulting in inhibitory signaling.
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影响因子:
8
作者:
Jeanes, A.;Gottardi, C. J.;Yap, A. S.
通讯作者:
Yap, A. S.
DOI:
10.1073/pnas.0802736105
发表时间:
2008-05-06
影响因子:
11.1
作者:
Kaiser, Brett K.;Pizarro, Juan Carlos;Strong, Roland K.
通讯作者:
Strong, Roland K.
影响因子:
4.4
作者:
Aldemir, H;Prod'homme, V;Braud, VM
通讯作者:
Braud, VM
DOI:
10.1107/s0907444998003254
发表时间:
1998-09-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Brunger, AT;Adams, PD;Warren, GL
通讯作者:
Warren, GL
影响因子:
4.4
作者:
Gründemann, C;Bauer, M;Pircher, H
通讯作者:
Pircher, H