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4tot

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Revision as of 03:04, 5 August 2016

Crystal structure of rat cyclophilin D in complex with a potent nonimmunosuppressive inhibitor

Structural highlights

4tot is a 8 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
NonStd Res:	, , , , , ,
Activity:	Peptidylprolyl isomerase, with EC number 5.2.1.8
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PPIF_RAT] PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. Involved in regulation of the mitochondrial permeability transition pore (mPTP). It is proposed that its association with the mPTP is masking a binding site for inhibiting inorganic phosphate (Pi) and promotes the open probability of the mPTP leading to apoptosis or necrosis; the requirement of the PPIase activity for this function is debated. In cooperation with mitochondrial TP53 is involved in activating oxidative stress-induced necrosis. Involved in modulation of mitochondrial membrane F(1)F(0) ATP synthase activity and regulation of mitochondrial matrix adenine nucleotide levels. Has anti-apoptotic activity independently of mPTP and in cooperation with BCL2 inhibits cytochrome c-dependent apoptosis.^[1] ^[2] ^[3]

Publication Abstract from PubMed

Nonimmunosuppressive cyclophilin inhibitors have demonstrated efficacy for the treatment of hepatitis C infection (HCV). However, alisporivir, cyclosporin A, and most other cyclosporins are potent inhibitors of OATP1B1, MRP2, MDR1, and other important drug transporters. Reduction of the side chain hydrophobicity of the P4 residue preserves cyclophilin binding and antiviral potency while decreasing transporter inhibition. Representative inhibitor 33 (NIM258) is a less potent transporter inhibitor relative to previously described cyclosporins, retains anti-HCV activity in cell culture, and has an acceptable pharmacokinetic profile in rats and dogs. An X-ray structure of 33 bound to rat cyclophilin D is reported.

Potent nonimmunosuppressive cyclophilin inhibitors with improved pharmaceutical properties and decreased transporter inhibition.,Fu J, Tjandra M, Becker C, Bednarczyk D, Capparelli M, Elling R, Hanna I, Fujimoto R, Furegati M, Karur S, Kasprzyk T, Knapp M, Leung K, Li X, Lu P, Mergo W, Miault C, Ng S, Parker D, Peng Y, Roggo S, Rivkin A, Simmons RL, Wang M, Wiedmann B, Weiss AH, Xiao L, Xie L, Xu W, Yifru A, Yang S, Zhou B, Sweeney ZK J Med Chem. 2014 Oct 23;57(20):8503-16. doi: 10.1021/jm500862r. Epub 2014 Oct 13. PMID:25310383^[4]

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

References

↑ Nicolli A, Basso E, Petronilli V, Wenger RM, Bernardi P. Interactions of cyclophilin with the mitochondrial inner membrane and regulation of the permeability transition pore, and cyclosporin A-sensitive channel. J Biol Chem. 1996 Jan 26;271(4):2185-92. PMID:8567677
↑ Scorrano L, Nicolli A, Basso E, Petronilli V, Bernardi P. Two modes of activation of the permeability transition pore: the role of mitochondrial cyclophilin. Mol Cell Biochem. 1997 Sep;174(1-2):181-4. PMID:9309684
↑ Woodfield K, Ruck A, Brdiczka D, Halestrap AP. Direct demonstration of a specific interaction between cyclophilin-D and the adenine nucleotide translocase confirms their role in the mitochondrial permeability transition. Biochem J. 1998 Dec 1;336 ( Pt 2):287-90. PMID:9820802
↑ Fu J, Tjandra M, Becker C, Bednarczyk D, Capparelli M, Elling R, Hanna I, Fujimoto R, Furegati M, Karur S, Kasprzyk T, Knapp M, Leung K, Li X, Lu P, Mergo W, Miault C, Ng S, Parker D, Peng Y, Roggo S, Rivkin A, Simmons RL, Wang M, Wiedmann B, Weiss AH, Xiao L, Xie L, Xu W, Yifru A, Yang S, Zhou B, Sweeney ZK. Potent nonimmunosuppressive cyclophilin inhibitors with improved pharmaceutical properties and decreased transporter inhibition. J Med Chem. 2014 Oct 23;57(20):8503-16. doi: 10.1021/jm500862r. Epub 2014 Oct 13. PMID:25310383 doi:http://dx.doi.org/10.1021/jm500862r

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 1: / Line 1: @@
 ==Crystal structure of rat cyclophilin D in complex with a potent nonimmunosuppressive inhibitor==
 <StructureSection load='4tot' size='340' side='right' caption='[[4tot]], [[Resolution|resolution]] 2.39&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=33X:N-METHYL-D-ALANINE'>33X</scene>, <scene name='pdbligand=34E:(3R)-4-[4-(2-METHOXYETHYL)PIPERAZIN-1-YL]-N-METHYL-L-VALINE'>34E</scene>, <scene name='pdbligand=ABA:ALPHA-AMINOBUTYRIC+ACID'>ABA</scene>, <scene name='pdbligand=BMT:4-METHYL-4-[(E)-2-BUTENYL]-4,N-METHYL-THREONINE'>BMT</scene>, <scene name='pdbligand=DAL:D-ALANINE'>DAL</scene>, <scene name='pdbligand=MLE:N-METHYLLEUCINE'>MLE</scene>, <scene name='pdbligand=MVA:N-METHYLVALINE'>MVA</scene></td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Peptidylprolyl_isomerase Peptidylprolyl isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.2.1.8 5.2.1.8] </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=4tot FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4tot OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4tot RCSB], [http://www.ebi.ac.uk/pdbsum/4tot 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=4tot FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4tot OCA], [http://pdbe.org/4tot PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4tot RCSB], [http://www.ebi.ac.uk/pdbsum/4tot PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4tot ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 19: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4tot" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

4tot

From Proteopedia

Revision as of 03:04, 5 August 2016

Crystal structure of rat cyclophilin D in complex with a potent nonimmunosuppressive inhibitor

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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