View source for 6xxo


==Crystal structure of NB8, a nanobody targeting prostate specific membrane antigen==
<StructureSection load='6xxo' size='340' side='right'caption='[[6xxo]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6xxo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Camelus_dromedarius Camelus dromedarius]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6XXO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6XXO FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.5&#8491;</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=6xxo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6xxo OCA], [https://pdbe.org/6xxo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6xxo RCSB], [https://www.ebi.ac.uk/pdbsum/6xxo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6xxo ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The repertoire of methods for the detection and chemotherapeutic treatment of prostate cancer (PCa) is currently limited. Prostate-specific membrane antigen (PSMA) is overexpressed in PCa tumors and can be exploited for both imaging and drug delivery. We developed and characterized four nanobodies that present tight and specific binding and internalization into PSMA(+) cells and that accumulate specifically in PSMA(+) tumors. We then conjugated one of these nanobodies to the cytotoxic drug doxorubicin, and we show that the conjugate internalizes specifically into PSMA(+) cells, where the drug is released and induces cytotoxic activity. In vivo studies show that the extent of tumor growth inhibition is similar when mice are treated with commercial doxorubicin and with a 42-fold lower amount of the nanobody-conjugated doxorubicin, attesting to the efficacy of the conjugated drug. These data highlight nanobodies as promising agents for the imaging of PCa tumors and for the targeted delivery of chemotherapeutic drugs.

Nanobodies Targeting Prostate-Specific Membrane Antigen for the Imaging and Therapy of Prostate Cancer.,Rosenfeld L, Sananes A, Zur Y, Cohen S, Dhara K, Gelkop S, Ben Zeev E, Shahar A, Lobel L, Akabayov B, Arbely E, Papo N J Med Chem. 2020 Jun 8. doi: 10.1021/acs.jmedchem.0c00418. PMID:32442375<ref>PMID:32442375</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
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== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Camelus dromedarius]]
[[Category: Large Structures]]
[[Category: Papo N]]
[[Category: Rosenfeld L]]
[[Category: Shahar A]]