4x20

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Revision as of 00:12, 26 January 2017

Discovery of cytotoxic Dolastatin 10 analogs with N-terminal modifications

Structural highlights

4x20 is a 5 chain structure with sequence from [1] and Ovis aries. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , ,
Related:	4x1i, 4x1k, 4x1y
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[D0VWZ0_SHEEP] Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain (By similarity).[RuleBase:RU003505][SAAS:SAAS023123_004_019801] [STMN4_RAT] Exhibits microtubule-destabilizing activity.^[1] ^[2] ^[3] [D0VWY9_SHEEP] Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain (By similarity).[RuleBase:RU003505]

Publication Abstract from PubMed

Auristatins, synthetic analogues of the antineoplastic natural product Dolastatin 10, are ultrapotent cytotoxic microtubule inhibitors that are clinically used as payloads in antibody-drug conjugates (ADCs). The design and synthesis of several new auristatin analogues with N-terminal modifications that include amino acids with alpha,alpha-disubstituted carbon atoms are described, including the discovery of our lead auristatin, PF-06380101. This modification of the peptide structure is unprecedented and led to analogues with excellent potencies in tumor cell proliferation assays and differential ADME properties when compared to other synthetic auristatin analogues that are used in the preparation of ADCs. In addition, auristatin cocrystal structures with tubulin are being presented that allow for the detailed examination of their binding modes. A surprising finding is that all analyzed analogues have a cis-configuration at the Val-Dil amide bond in their functionally relevant tubulin bound state, whereas in solution this bond is exclusively in the trans-configuration. This remarkable observation shines light onto the preferred binding mode of auristatins and serves as a valuable tool for structure-based drug design.

Discovery of cytotoxic dolastatin 10 analogues with N-terminal modifications.,Maderna A, Doroski M, Subramanyam C, Porte A, Leverett CA, Vetelino BC, Chen Z, Risley H, Parris K, Pandit J, Varghese AH, Shanker S, Song C, Sukuru SC, Farley KA, Wagenaar MM, Shapiro MJ, Musto S, Lam MH, Loganzo F, O'Donnell CJ J Med Chem. 2014 Dec 26;57(24):10527-43. doi: 10.1021/jm501649k. Epub 2014 Dec 9. PMID:25431858^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Nakao C, Itoh TJ, Hotani H, Mori N. Modulation of the stathmin-like microtubule destabilizing activity of RB3, a neuron-specific member of the SCG10 family, by its N-terminal domain. J Biol Chem. 2004 May 28;279(22):23014-21. Epub 2004 Mar 22. PMID:15039434 doi:http://dx.doi.org/10.1074/jbc.M313693200
↑ Gavet O, El Messari S, Ozon S, Sobel A. Regulation and subcellular localization of the microtubule-destabilizing stathmin family phosphoproteins in cortical neurons. J Neurosci Res. 2002 Jun 1;68(5):535-50. PMID:12111843 doi:http://dx.doi.org/10.1002/jnr.10234
↑ Ravelli RB, Gigant B, Curmi PA, Jourdain I, Lachkar S, Sobel A, Knossow M. Insight into tubulin regulation from a complex with colchicine and a stathmin-like domain. Nature. 2004 Mar 11;428(6979):198-202. PMID:15014504 doi:http://dx.doi.org/10.1038/nature02393
↑ Maderna A, Doroski M, Subramanyam C, Porte A, Leverett CA, Vetelino BC, Chen Z, Risley H, Parris K, Pandit J, Varghese AH, Shanker S, Song C, Sukuru SC, Farley KA, Wagenaar MM, Shapiro MJ, Musto S, Lam MH, Loganzo F, O'Donnell CJ. Discovery of cytotoxic dolastatin 10 analogues with N-terminal modifications. J Med Chem. 2014 Dec 26;57(24):10527-43. doi: 10.1021/jm501649k. Epub 2014 Dec 9. PMID:25431858 doi:http://dx.doi.org/10.1021/jm501649k

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4x20"

@@ Line 1: / Line 1: @@
 ==Discovery of cytotoxic Dolastatin 10 analogs with N-terminal modifications==
 <StructureSection load='4x20' size='340' side='right' caption='[[4x20]], [[Resolution|resolution]] 3.50&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=3WY:2-METHYL-L-PROLYL-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(1S)-1-CARBOXY-2-PHENYLETHYL]AMINO}-1-METHOXY-2-METHYL-3-OXOPROPYL]PYRROLIDIN-1-YL}-3-METHOXY-5-METHYL-1-OXOHEPTAN-4-YL]-N-METHYL-L-VALINAMIDE'>3WY</scene>, <scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=LOC:N-[(7S)-1,2,3,10-TETRAMETHOXY-9-OXO-6,7-DIHYDRO-5H-BENZO[D]HEPTALEN-7-YL]ETHANAMIDE'>LOC</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4x1i|4x1i]], [[4x1k|4x1k]], [[4x1y|4x1y]]</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4x20 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4x20 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4x20 RCSB], [http://www.ebi.ac.uk/pdbsum/4x20 PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4x20 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4x20 OCA], [http://pdbe.org/4x20 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4x20 RCSB], [http://www.ebi.ac.uk/pdbsum/4x20 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4x20 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 17: / Line 18: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4x20" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Stathmin|Stathmin]]
+*[[Tubulin|Tubulin]]
 == References ==
 <references/>

4x20

From Proteopedia

Revision as of 00:12, 26 January 2017

Discovery of cytotoxic Dolastatin 10 analogs with N-terminal modifications

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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