1cd8

<table><tr><td colspan='2'>[[1cd8]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CD8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CD8 FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>

[[https://www.uniprot.org/uniprot/CD8A_HUMAN CD8A_HUMAN]] Defects in CD8A are a cause of familial CD8 deficiency (CD8 deficiency) [MIM:[https://omim.org/entry/608957 608957]]. Familial CD8 deficiency is a novel autosomal recessive immunologic defect characterized by absence of CD8+ cells, leading to recurrent bacterial infections.

[[https://www.uniprot.org/uniprot/CD8A_HUMAN CD8A_HUMAN]] Identifies cytotoxic/suppressor T-cells that interact with MHC class I bearing targets. CD8 is thought to play a role in the process of T-cell mediated killing. CD8 alpha chains binds to class I MHC molecules alpha-3 domains.

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== Publication Abstract from PubMed ==

A secreted fragment of the extracellular portion of human CD8 alpha has been expressed in CHO cells, and a deglycosylated and proteolyzed form of this fragment has been crystallized. We report here the crystal structure of this fragment as refined at 2.6 A resolution. The structure was solved by molecular replacement using a superposition of ten variable domains from immunoglobulin light chains as the search model. Only the N-terminal 114 amino acids of CD8 alpha are visible in the electron density maps. The domain formed by these residues possesses a fold typical of immunoglobulin variable domains and associates to form Fv-like homodimers.

Crystal structure of a soluble form of the human T cell coreceptor CD8 at 2.6 A resolution.,Leahy DJ, Axel R, Hendrickson WA Cell. 1992 Mar 20;68(6):1145-62. PMID:1547508<ref>PMID:1547508</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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== References ==

<references/>

[[Category: Human]]

[[Category: Axel, R]]

[[Category: Hendrickson, W A]]

[[Category: Leahy, D J]]

[[Category: Surface glycoprotein]]