View source for 7ppi


==Crystal STRUCTURE OF NAMPT IN COMPLEX WITH Compound 11==
<StructureSection load='7ppi' size='340' side='right'caption='[[7ppi]], [[Resolution|resolution]] 2.33&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7ppi]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7PPI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7PPI 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]] 2.33&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=7Z2:N-[4-[(5R)-1-(4-azanylbutyl)-6-oxidanylidene-5-quinolin-5-yl-4,5-dihydropyridazin-3-yl]phenyl]-1,3-dihydropyrrolo[3,4-c]pyridine-2-carboxamide'>7Z2</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</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=7ppi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7ppi OCA], [https://pdbe.org/7ppi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7ppi RCSB], [https://www.ebi.ac.uk/pdbsum/7ppi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7ppi ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/NAMPT_HUMAN NAMPT_HUMAN] Catalyzes the condensation of nicotinamide with 5-phosphoribosyl-1-pyrophosphate to yield nicotinamide mononucleotide, an intermediate in the biosynthesis of NAD. It is the rate limiting component in the mammalian NAD biosynthesis pathway (By similarity).
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== Publication Abstract from PubMed ==
Inhibition of intracellular nicotinamide phosphoribosyltransferase (NAMPT) represents a new mode of action for cancer-targeting antibody-drug conjugates (ADCs) with activity also in slowly proliferating cells. To extend the repertoire of available effector chemistries, we have developed a novel structural class of NAMPT inhibitors as ADC payloads. A structure-activity relationship-driven approach supported by protein structural information was pursued to identify a suitable attachment point for the linker to connect the NAMPT inhibitor with the antibody. Optimization of scaffolds and linker structures led to highly potent effector chemistries which were conjugated to antibodies targeting C4.4a (LYPD3), HER2 (c-erbB2), or B7H3 (CD276) and tested on antigen-positive and -negative cancer cell lines. Pharmacokinetic studies, including metabolite profiling, were performed to optimize the stability and selectivity of the ADCs and to evaluate potential bystander effects. Optimized NAMPTi-ADCs demonstrated potent in vivo antitumor efficacy in target antigen-expressing xenograft mouse models. This led to the development of highly potent NAMPT inhibitor ADCs with a very good selectivity profile compared with the corresponding isotype control ADCs. Moreover, we demonstrate horizontal line to our knowledge for the first time horizontal line the generation of NAMPTi payload metabolites from the NAMPTi-ADCs in vitro and in vivo. In conclusion, NAMPTi-ADCs represent an attractive new payload class designed for use in ADCs for the treatment of solid and hematological cancers.

A Novel NAMPT Inhibitor-Based Antibody-Drug Conjugate Payload Class for Cancer Therapy.,Bohnke N, Berger M, Griebenow N, Rottmann A, Erkelenz M, Hammer S, Berndt S, Gunther J, Wengner AM, Stelte-Ludwig B, Mahlert C, Greven S, Dietz L, Jorissen H, Barak N, Bomer U, Hillig RC, Eberspaecher U, Weiske J, Giese A, Mumberg D, Nising CF, Weinmann H, Sommer A Bioconjug Chem. 2022 Jun 3. doi: 10.1021/acs.bioconjchem.2c00178. PMID:35658441<ref>PMID:35658441</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 7ppi" style="background-color:#fffaf0;"></div>

==See Also==
*[[Phosphoribosyltransferase 3D structures|Phosphoribosyltransferase 3D structures]]
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Hillig RC]]