View source for 3jbq


==Domain Organization and Conformational Plasticity of the G Protein Effector, PDE6==
<SX load='3jbq' size='340' side='right' viewer='molstar' caption='[[3jbq]], [[Resolution|resolution]] 11.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3jbq]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3JBQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3JBQ FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 11&#8491;</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=3jbq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3jbq OCA], [https://pdbe.org/3jbq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3jbq RCSB], [https://www.ebi.ac.uk/pdbsum/3jbq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3jbq ProSAT]</span></td></tr>
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== Function ==
[https://www.uniprot.org/uniprot/PDE5A_BOVIN PDE5A_BOVIN] Plays a role in signal transduction by regulating the intracellular concentration of cyclic nucleotides. This phosphodiesterase catalyzes the specific hydrolysis of cGMP to 5'-GMP (PubMed:8530505). Specifically regulates nitric-oxide-generated cGMP (By similarity).[UniProtKB:O76074]<ref>PMID:8530505</ref> [https://www.uniprot.org/uniprot/PDE6C_BOVIN PDE6C_BOVIN] As cone-specific cGMP phosphodiesterase, it plays an essential role in light detection and cone phototransduction by rapidly decreasing intracellular levels of cGMP.[UniProtKB:P51160]
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== Publication Abstract from PubMed ==
The cGMP phosphodiesterase of rod photoreceptor cells, PDE6, is the key effector enzyme in phototransduction. Two large catalytic subunits, PDE6alpha and -beta, each contain one catalytic domain and two non-catalytic GAF domains, whereas two small inhibitory PDE6gamma subunits allow tight regulation by the G protein transducin. The structure of holo-PDE6 in complex with the ROS-1 antibody Fab fragment was determined by cryo-electron microscopy. The approximately 11 A map revealed previously unseen features of PDE6, and each domain was readily fit with high resolution structures. A structure of PDE6 in complex with prenyl-binding protein (PrBP/delta) indicated the location of the PDE6 C-terminal prenylations. Reconstructions of complexes with Fab fragments bound to N or C termini of PDE6gamma revealed that PDE6gamma stretches from the catalytic domain at one end of the holoenzyme to the GAF-A domain at the other. Removal of PDE6gamma caused dramatic structural rearrangements, which were reversed upon its restoration.

Domain Organization and Conformational Plasticity of the G Protein Effector, PDE6.,Zhang Z, He F, Constantine R, Baker ML, Baehr W, Schmid MF, Wensel TG, Agosto MA J Biol Chem. 2015 May 15;290(20):12833-43. doi: 10.1074/jbc.M115.647636. Epub, 2015 Mar 25. PMID:25809480<ref>PMID:25809480</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 3jbq" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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[[Category: Bos taurus]]
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Agosto MA]]
[[Category: Baehr W]]
[[Category: Baker ML]]
[[Category: Constantine R]]
[[Category: He F]]
[[Category: Schmid MF]]
[[Category: Wensel TG]]
[[Category: Zhang Z]]