Glutaminyl cyclase

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*Glutaminyl cyclase
*Glutaminyl cyclase
-
**[[2afm]], [[2afo]] – hQC – human <br />
+
**[[2afm]], [[2afo]] – hQC + Zn – human <br />
-
**[[2afs]], [[2zed]], [[2zee]], [[2zef]], [[2zeg]], [[2zeh]], [[2zel]], [[2zem]], [[2zen]], [[2zeo]], [[2zep]], [[3pbe]], [[4yu9]], [[7cp0]] – hQC (mutant) <br />
+
**[[2afs]], [[2zed]], [[2zee]], [[2zef]], [[2zeg]], [[2zeh]], [[2zel]], [[2zem]], [[2zen]], [[2zeo]], [[2zep]], [[3pbe]], [[4yu9]], [[7cp0]] – hQC (mutant) + Zn<br />
-
**[[3si1]] – mQC – mouse <br />
+
**[[9fxh]], [[9fxv]] – hQC (mutant) + Co<br />
-
**[[4fwu]], [[4f9u]] – DmQC – ''Drosophila melanogaster'' <br />
+
**[[9fxg]] – hQC (mutant) <br />
-
**[[4f9v]] – DmQC (mutant) <br />
+
**[[3pb4]], [[3pb6]] – hQC catalytic domain + Zn<br />
 +
**[[3si1]] – mQC + Zn – mouse <br />
 +
**[[4f9u]], [[4fai]], [[4fwu]] – DmQC – ''Drosophila melanogaster'' <br />
 +
**[[4f9v]], [[4fbe]] – DmQC (mutant) <br />
 +
**[[2faw]] – QC – papaya<br />
**[[3mbr]] – QC – ''Xanthomonas campestris'' <br />
**[[3mbr]] – QC – ''Xanthomonas campestris'' <br />
-
**[[3nol]] – QC – ''Zymomonas mobilis'' <br />
+
**[[3nol]], [[3nom]] – QC – ''Zymomonas mobilis'' <br />
**[[3nok]] – QC – ''Myxococcus xanthus''<br />
**[[3nok]] – QC – ''Myxococcus xanthus''<br />
-
**[[7d1n]], [[7d1p]], [[7d1y]], [[7d21]], [[7d23]], [[7d2b]], [[7d2d]], [[7d2i]], [[7d2j]] – IsQC – ''Ixodes scapularis''<br />
+
**[[4mhn]], [[4mhp]], [[7d1n]], [[7d1p]], [[7d1y]], [[7d21]], [[7d23]], [[7d2b]], [[7d2d]], [[7d2i]], [[7d2j]] – IsQC catalytic domain – ''Ixodes scapularis''<br />
-
**[[7d1h]] – IsQC (mutant) <br />
+
**[[7d1h]] – IsQC catalytic domain (mutant) <br />
**[[7d17]] – QC – ''Macrostormum lignano''<br />
**[[7d17]] – QC – ''Macrostormum lignano''<br />
**[[6qql]], [[7cje]], [[7cjg]] – QC – ''Porphyromonas gingivalis''<br />
**[[6qql]], [[7cje]], [[7cjg]] – QC – ''Porphyromonas gingivalis''<br />
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**[[7d1b]] – QC – ''Fimbrilglobus ruber''<br />
**[[7d1b]] – QC – ''Fimbrilglobus ruber''<br />
**[[6qro]] – QC – ''Tannerella forsythia''<br />
**[[6qro]] – QC – ''Tannerella forsythia''<br />
 +
**[[8vpl]], [[8vpm]] – QC + Zn – ''Aspergillus flavus'' <br />
*Glutaminyl cyclase complex
*Glutaminyl cyclase complex
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**[[2afu]] – hQC + glutamine t-butyl ester <br />
**[[2afu]] – hQC + glutamine t-butyl ester <br />
**[[2afw]] – hQC + N-acetylhistamine <br />
**[[2afw]] – hQC + N-acetylhistamine <br />
-
**[[2afx]], [[3si0]], [[2afz]] – hQC + imidazole derivative<br />
+
**[[2afx]], [[3si0]], [[2afz]], [[3pb9]], [[7cm0]], [[7d8e]], [[8hy3]], [[8xfv]], [[8xga]], [[8xgb]], [[8xgt]], [[8xgy]], [[9isd]], [[9ivv]], [[9kmb]] – hQC catalytic domain + imidazole derivative + Zn<br />
-
**[[3pbb]] – hQC + inhibitor <br />
+
**[[9fxi]] – hQC (mutant) + inhibitor + Co<br />
 +
**[[3pb7]], [[3pb8]], [[3pbb]] – hQC catalytic domain + inhibitor <br />
**[[4ywy]], [[6gbx]], [[7coz]] – hQC (mutant) + inhibitor <br />
**[[4ywy]], [[6gbx]], [[7coz]] – hQC (mutant) + inhibitor <br />
**[[6yi1]] – hQC + Glu-(γ-hydrazide)-Phe-Ala<br />
**[[6yi1]] – hQC + Glu-(γ-hydrazide)-Phe-Ala<br />
**[[6yjy]] – hQC + neurotensin<br />
**[[6yjy]] – hQC + neurotensin<br />
**[[3si2]] – mQC + inhibitor <br />
**[[3si2]] – mQC + inhibitor <br />
-
**[[7d1d]] – QC + imidazole derivative – ''Bacterioides thetaiotaomicron''<br />
+
**[[7d1d]] – BtQC + imidazole derivative – ''Bacterioides thetaiotaomicron''<br />
 +
**[[7d1e]] – BtQC + N-acetylhistamine <br />
 +
**[[4mhz]] – IsQC catalytic domain (mutant) + inhibitor <br />
 +
**[[4mhy]] – IsQC catalytic domain + imidazole derivative<br />
}}
}}

Current revision

Structure of human glutaminyl cyclase complex with benzyimidazole and Zn+2 ion (PDB code 2afx).

Drag the structure with the mouse to rotate

3D Structures of glutaminyl cyclase

Updated on 17-July-2025

References

  1. Busby WH Jr, Quackenbush GE, Humm J, Youngblood WW, Kizer JS. An enzyme(s) that converts glutaminyl-peptides into pyroglutamyl-peptides. Presence in pituitary, brain, adrenal medulla, and lymphocytes. J Biol Chem. 1987 Jun 25;262(18):8532-6. PMID:3597387
  2. Valenti MT, Bolognin S, Zanatta C, Donatelli L, Innamorati G, Pampanin M, Zanusso G, Zatta P, Dalle Carbonare L. Increased glutaminyl cyclase expression in peripheral blood of Alzheimer's disease patients. J Alzheimers Dis. 2013;34(1):263-71. doi: 10.3233/JAD-120517. PMID:23207485 doi:http://dx.doi.org/10.3233/JAD-120517
  3. Huang KF, Liu YL, Cheng WJ, Ko TP, Wang AH. Crystal structures of human glutaminyl cyclase, an enzyme responsible for protein N-terminal pyroglutamate formation. Proc Natl Acad Sci U S A. 2005 Sep 13;102(37):13117-22. Epub 2005 Aug 31. PMID:16135565

Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Joel L. Sussman

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