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4cm2

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Revision as of 09:33, 11 August 2016

Crystal structure of human soluble Adenylyl Cyclase soaked with bisulfite

Structural highlights

4cm2 is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
NonStd Res:
Related:	4clf, 4clk, 4cll, 4clp, 4cls, 4clt, 4clu, 4clw, 4cly, 4clz, 4cm0
Activity:	Adenylate cyclase, with EC number 4.6.1.1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[ADCYA_HUMAN] Idiopathic hypercalciuria. Disease susceptibility is associated with variations affecting the gene represented in this entry.

Function

[ADCYA_HUMAN] Soluble adenylyl cyclase that has a critical role in mammalian spermatogenesis. Produces the cAMP which mediates in part the cAMP-responsive nuclear factors indispensable for maturation of sperm in the epididymis. Induces capacitation, the maturational process that sperm undergo prior to fertilization. May be the bicarbonate sensor. Involved in ciliary beat regulation.^[1] ^[2]

Publication Abstract from PubMed

cAMP is an evolutionary conserved, prototypic second messenger regulating numerous cellular functions. In mammals, cAMP is synthesized by one of 10 homologous adenylyl cyclases (ACs): nine transmembrane enzymes and one soluble AC (sAC). Among these, only sAC is directly activated by bicarbonate (HCO3(-)); it thereby serves as a cellular sensor for HCO3(-), carbon dioxide (CO2), and pH in physiological functions, such as sperm activation, aqueous humor formation, and metabolic regulation. Here, we describe crystal structures of human sAC catalytic domains in the apo state and in complex with substrate analog, products, and regulators. The activator HCO3(-) binds adjacent to Arg176, which acts as a switch that enables formation of the catalytic cation sites. An anionic inhibitor, 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid, inhibits sAC through binding to the active site entrance, which blocks HCO3(-) activation through steric hindrance and trapping of the Arg176 side chain. Finally, product complexes reveal small, local rearrangements that facilitate catalysis. Our results provide a molecular mechanism for sAC catalysis and cellular HCO3(-) sensing and a basis for targeting this system with drugs.

Crystal structures of human soluble adenylyl cyclase reveal mechanisms of catalysis and of its activation through bicarbonate.,Kleinboelting S, Diaz A, Moniot S, van den Heuvel J, Weyand M, Levin LR, Buck J, Steegborn C Proc Natl Acad Sci U S A. 2014 Mar 11;111(10):3727-32. doi:, 10.1073/pnas.1322778111. Epub 2014 Feb 24. PMID:24567411^[3]

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

References

↑ Geng W, Wang Z, Zhang J, Reed BY, Pak CY, Moe OW. Cloning and characterization of the human soluble adenylyl cyclase. Am J Physiol Cell Physiol. 2005 Jun;288(6):C1305-16. Epub 2005 Jan 19. PMID:15659711 doi:http://dx.doi.org/10.1152/ajpcell.00584.2004
↑ Schmid A, Sutto Z, Nlend MC, Horvath G, Schmid N, Buck J, Levin LR, Conner GE, Fregien N, Salathe M. Soluble adenylyl cyclase is localized to cilia and contributes to ciliary beat frequency regulation via production of cAMP. J Gen Physiol. 2007 Jul;130(1):99-109. PMID:17591988 doi:http://dx.doi.org/jgp.200709784
↑ Kleinboelting S, Diaz A, Moniot S, van den Heuvel J, Weyand M, Levin LR, Buck J, Steegborn C. Crystal structures of human soluble adenylyl cyclase reveal mechanisms of catalysis and of its activation through bicarbonate. Proc Natl Acad Sci U S A. 2014 Mar 11;111(10):3727-32. doi:, 10.1073/pnas.1322778111. Epub 2014 Feb 24. PMID:24567411 doi:http://dx.doi.org/10.1073/pnas.1322778111

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4cm2"

@@ Line 1: / Line 1: @@
 ==Crystal structure of human soluble Adenylyl Cyclase soaked with bisulfite==
 <StructureSection load='4cm2' size='340' side='right' caption='[[4cm2]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
@@ Line 7: / Line 8: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4clf|4clf]], [[4clk|4clk]], [[4cll|4cll]], [[4clp|4clp]], [[4cls|4cls]], [[4clt|4clt]], [[4clu|4clu]], [[4clw|4clw]], [[4cly|4cly]], [[4clz|4clz]], [[4cm0|4cm0]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Adenylate_cyclase Adenylate cyclase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.6.1.1 4.6.1.1] </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=4cm2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4cm2 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4cm2 RCSB], [http://www.ebi.ac.uk/pdbsum/4cm2 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=4cm2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4cm2 OCA], [http://pdbe.org/4cm2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4cm2 RCSB], [http://www.ebi.ac.uk/pdbsum/4cm2 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4cm2 ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 21: / Line 22: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4cm2" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Adenylyl cyclase|Adenylyl cyclase]]
 == References ==
 <references/>

4cm2

From Proteopedia

Revision as of 09:33, 11 August 2016

Crystal structure of human soluble Adenylyl Cyclase soaked with bisulfite

Structural highlights

Disease

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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