Functional differences between two Fc receptor ITAM signaling motifs.
Functional differences between two Fc receptor ITAM signaling motifs.
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两个 Fc 受体 ITAM 信号基序之间的功能差异。
DOI:
10.1182/blood.v86.9.3302.bloodjournal8693302
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发表时间:
1995
期刊:
影响因子:
20.3
通讯作者:
Van
中科院分区:
文献类型:
--
作者:
I. E. V. D. Herik;Maarten W. H. Ter Bekke;Marielle J. Tempelman;Peter J. A. Capel;Jan;Van
Most Ig receptors exist as multi-subunit complexes with a unique ligand binding alpha chain and a common signaling FcR gamma-chain. The myeloid Fc gamma RIIa (CD32) appears unique among FcR because both ligand-binding and signaling capacity are found in the alpha chain. Within the cytoplasmic tails of Fc gamma RIIa and FcR gamma-chain similar, but not identical, activatory motifs (ITAMs) have been defined, in which tyrosines play an important role. Previously, Fc gamma RIIa-ITAM was shown to be critical for both proximal and distal activatory functions in IIA1.6 B-cell transfectants. Triggering of interleukin-2 (IL-2) release and antigen presentation was absent in Fc gamma RIIa, but not in FcR gamma-chain receptor complexes. We now assessed the capacity of Fc gamma RIIa wild-type and Fc gamma RIIa/gamma chimeric molecules to trigger IL-2 production and antigen presentation by B cells. Both of these functions could solely be triggered by receptors containing the FcRIIa was capable of functional interaction with FcR gamma-chain, thus reconstituting the capacity to trigger IL-2 release and antigen presentation. These data document qualitative differences between Fc receptor ITAMs.
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影响因子:
56.9
作者:
ODIN, JA;EDBERG, JC;UNKELESS, JC
通讯作者:
UNKELESS, JC
DOI:
--
发表时间:
1992
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Gosselin,EJ;Wardwell,K;Gosselin,DR;Alter,N;Fisher,JL;Guyre,PM
通讯作者:
Guyre,PM
DOI:
--
发表时间:
1986
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Jones,B;Tite,JP;JanewayJr,CA
通讯作者:
JanewayJr,CA
影响因子:
20.3
作者:
Mitchell,MA;Huang,MM;Chien,P;Indik,ZK;Pan,XQ;Schreiber,AD
通讯作者:
Schreiber,AD
影响因子:
2.6
作者:
Hunter,S;Huang,MM;Indik,ZK;Schreiber,AD
通讯作者:
Schreiber,AD