A bony fish immunological receptor of the NITR multigene family mediates allogeneic recognition.
A bony fish immunological receptor of the NITR multigene family mediates allogeneic recognition.
复制标题
NITR多基因家族的骨鱼免疫受体介导同种异体识别。
DOI:
10.1016/j.immuni.2008.05.018
复制
发表时间:
2008-08-15
期刊:
影响因子:
32.4
通讯作者:
Ostrov, David A.
中科院分区:
文献类型:
--
作者:
Cannon, John P.;Haire, Robert N.;Magis, Andrew T.;Eason, Donna D.;Winfrey, Kelley N.;Prada, Jose A. Hernandez;Bailey, Kate M.;Jakoncic, Jean;Litman, Gary W.;Ostrov, David A.
Novel immune-type receptors (NITRs) comprise an exceptionally large, diversified family of activating/inhibitory receptors that has been identified in bony fish. In this study, we characterize the structure of an activating NITR that is expressed by a cytotoxic NK-like cell line and specifically binds an allogeneic B cell target. A single amino acid residue within the NITR immunoglobulin variable (V)-type domain accounts for specificity of the interaction. Structures solved by x-ray crystallography reveal: (1) the V-type domains of NITRs form homodimers resembling heterodimers formed by rearranging antigen binding receptors and (2) both subunits of NITR dimers form ligand-binding surfaces in CDR1 that determine specificity for the nonself target. In the evolution of immune function, it appears that a specific NK-type of innate recognition may be mediated by a complex germline multigene family of V structures resembling those that are somatically diversified in adaptive immune responses.
登录
查看更多内容
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
5.7
作者:
Cantoni, C;Ponassi, M;Bordo, D
通讯作者:
Bordo, D
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
DOI:
10.1073/pnas.0401119101
发表时间:
2004-05-25
影响因子:
11.1
作者:
Ohtsuka, M;Arase, H;Saito, T
通讯作者:
Saito, T
影响因子:
5.6
作者:
MacCallum, RM;Martin, ACR;Thornton, JM
通讯作者:
Thornton, JM