View source for 1cjt


==COMPLEX OF GS-ALPHA WITH THE CATALYTIC DOMAINS OF MAMMALIAN ADENYLYL CYCLASE: COMPLEX WITH BETA-L-2',3'-DIDEOXYATP, MN, AND MG==
<StructureSection load='1cjt' size='340' side='right'caption='[[1cjt]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1cjt]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus], [https://en.wikipedia.org/wiki/Canis_lupus_familiaris Canis lupus familiaris] and [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CJT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CJT 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]] 2.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=DAD:2,3-DIDEOXYADENOSINE-5-TRIPHOSPHATE'>DAD</scene>, <scene name='pdbligand=FOK:FORSKOLIN'>FOK</scene>, <scene name='pdbligand=GSP:5-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE'>GSP</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</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=1cjt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cjt OCA], [https://pdbe.org/1cjt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cjt RCSB], [https://www.ebi.ac.uk/pdbsum/1cjt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cjt ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ADCY5_CANLF ADCY5_CANLF] Catalyzes the formation of the signaling molecule cAMP in response to G-protein signaling (PubMed:1618857, PubMed:8428899, PubMed:10427002, PubMed:11087399, PubMed:15591060, PubMed:16766715, PubMed:19243146). Mediates signaling downstream of ADRB1. Regulates the increase of free cytosolic Ca(2+) in response to increased blood glucose levels and contributes to the regulation of Ca(2+)-dependent insulin secretion (By similarity).[UniProtKB:O95622]<ref>PMID:10427002</ref> <ref>PMID:11087399</ref> <ref>PMID:15591060</ref> <ref>PMID:1618857</ref> <ref>PMID:16766715</ref> <ref>PMID:19243146</ref> <ref>PMID:8428899</ref>   Lacks catalytic activity by itself, but can associate with isoform 1 to form active adenylyl cyclase.<ref>PMID:8428899</ref> 
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/cj/1cjt_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1cjt ConSurf].
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== Publication Abstract from PubMed ==
Adenylyl cyclase (AC) converts adenosine triphosphate (ATP) to cyclic adenosine monophosphate, a ubiquitous second messenger that regulates many cellular functions. Recent structural studies have revealed much about the structure and function of mammalian AC but have not fully defined its active site or catalytic mechanism. Four crystal structures were determined of the catalytic domains of AC in complex with two different ATP analogs and various divalent metal ions. These structures provide a model for the enzyme-substrate complex and conclusively demonstrate that two metal ions bind in the active site. The similarity of the active site of AC to those of DNA polymerases suggests that the enzymes catalyze phosphoryl transfer by the same two-metal-ion mechanism and likely have evolved from a common ancestor.

Two-metal-Ion catalysis in adenylyl cyclase.,Tesmer JJ, Sunahara RK, Johnson RA, Gosselin G, Gilman AG, Sprang SR Science. 1999 Jul 30;285(5428):756-60. PMID:10427002<ref>PMID:10427002</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 1cjt" style="background-color:#fffaf0;"></div>

==See Also==
*[[3D Adenylyl cyclase 3D structures|3D Adenylyl cyclase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bos taurus]]
[[Category: Canis lupus familiaris]]
[[Category: Large Structures]]
[[Category: Rattus norvegicus]]
[[Category: Sprang SR]]
[[Category: Tesmer JJG]]