CD3: Difference between revisions

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== Function ==
== Function ==


'''CD3''' (or '''Cluster of Differentiation 3''') is a T-cell co-receptor.  The CD3 is composed of γ, δ and two ε chains.  These 4 chains associate with the T-cell receptor (TCR) and a ζ chain to form an activation signal in T lymphocytes.  CD3 assembles as 3 pairs of dimers: εγ, εδ and ζζ.  The intracellular domain of CD3 contains a single Immunorecetor Tyrosine-based Activation Motif (ITAM).  <ref>PMID:24488493</ref>
'''CD3''' (or '''Cluster of Differentiation 3''') is a T-cell co-receptor.  The CD3 is composed of γ, δ and two ε chains.  These 4 chains associate with the T-cell receptor (TCR) and a ζ chain to form an activation signal in T lymphocytes.  CD3 assembles as 3 pairs of dimers: εγ, εδ and ζζ.  The intracellular domain of CD3 contains a single Immunorecetor Tyrosine-based Activation Motif (ITAM).  <ref>PMID:24488493</ref><ref>PMID:15136729</ref>
*<scene name='55/551236/Cv/2'>Human CD3 extracellular domain with antibody light chain and heavy chain</scene> (PDB entry [[1sy6]]).
*<scene name='55/551236/Cv/2'>Human CD3 extracellular domain with antibody light chain and heavy chain</scene> (PDB entry [[1sy6]]).


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Drugs which bind to CD3 are tested as immunorepressants.
Drugs which bind to CD3 are tested as immunorepressants.
<ref>PMID:15136729</ref>


==3D structures of CD3==
==3D structures of CD3==
[[CD3 3D structures]]
</StructureSection>


Updated on {{REVISIONDAY2}}-{{MONTHNAME|{{REVISIONMONTH}}}}-{{REVISIONYEAR}}
{{#tree:id=OrganizedByTopic|openlevels=0|
*CD3 ε chain
**[[1a81]] – hCD3 ITAM + Syk kinase – human <BR />
**[[2jxb]] – hCD3 domain SH3-1<br />
**[[2k4f]] – mCD3 ITAM – mouse - NMR <BR />
**[[3r08]] – mCD3 extracellular domain + antibody<BR />
**[[2mim]] – CD3 – chicken<br />
*CD3 εγ dimer
**[[1jbj]] – hCD3 extracellular domain - NMR<BR />
**[[1sy6]] – hCD3 extracellular domain + antibody<BR />
*CD3 εδ dimer
**[[1xiw]] – hCD3 extracellular domain + antibody<BR />
**[[1xmw]] – mCD3 extracellular domain ε/sCD3 extracellular domain δ – sheep<BR />
*CD3 ζ chain
**[[1ygr]], [[2oq1]] – hCD3 ITAM + CD45 protein tyrosine phosphatase <BR />
**[[3ik5]], [[3ioz]] – hCD3 ITAM + NEF<BR />
**[[2hac]] – hCD3 transmembrane domain - NMR<BR />
}}
== References ==
== References ==
<references/>
<references/>
[[Category: Topic Page]]
[[Category: Topic Page]]

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky