View source for 8znz


==CD73 bound with HB0045==
<StructureSection load='8znz' size='340' side='right'caption='[[8znz]], [[Resolution|resolution]] 3.06&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8znz]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo Homo] and [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8ZNZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8ZNZ FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.06&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8znz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8znz OCA], [https://pdbe.org/8znz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8znz RCSB], [https://www.ebi.ac.uk/pdbsum/8znz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8znz ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/5NTD_HUMAN 5NTD_HUMAN] Hereditary arterial and articular multiple calcification syndrome. The disease is caused by mutations affecting the gene represented in this entry.
== Function ==
[https://www.uniprot.org/uniprot/5NTD_HUMAN 5NTD_HUMAN] Hydrolyzes extracellular nucleotides into membrane permeable nucleosides. Exhibits AMP-, NAD-, and NMN-nucleosidase activities.<ref>PMID:21933152</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
CD73, an ectoenzyme responsible for adenosine production, is often elevated in immuno-suppressive tumor environments. Inhibition of CD73 activity holds great promise as a therapeutic strategy for CD73-expressing cancers. In this study, we have developed a therapeutic anti-human CD73 antibody cocktail, HB0045. HB0045 is a 1:1 mixture of two humanized monoclonal IgG1 antibodies (mAbs), HB0038 and HB0039. The cocktail not only harnesses the advantages of its parental mAbs in enzyme inhibition but also shows a significantly greater capability of promoting T cell proliferation in vitro. Structural analyses show that HB0045 effectively locks the CD73 dimer in a "partially open" non-active conformation through a double lock mechanism. In various animal models of syngeneic and xenograft tumors, HB0045 inhibits tumor growth more potently than the single mAbs. Collectively, our findings provide functional and structural insights into the mechanism of a CD73-targeting antibody cocktail.

An antibody cocktail targeting two different CD73 epitopes enhances enzyme inhibition and tumor control.,Xu JG, Chen S, He Y, Zhu X, Wang Y, Ye Z, Zhou JC, Wu X, Zhang L, Ren X, Jia H, Yu H, Wei X, Feng Y, Chen X, Cui X, Pan X, Wang S, Xia S, Shang H, Pu Y, Xu W, Li H, Chen Q, Chen Z, Wang M, Yan X, Shi H, Li M, Xia Y, Bellelli R, Dong S, He J, Huang J, Cai CL, Zhu X, Zhan Y, Wan L Nat Commun. 2024 Dec 30;15(1):10872. doi: 10.1038/s41467-024-55207-9. PMID:39738003<ref>PMID:39738003</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 8znz" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: He Y]]
[[Category: Wan L]]
[[Category: Xu J]]