6m8r

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'''Unreleased structure'''
 
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The entry 6m8r is ON HOLD until Paper Publication
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==Crystal structure of the KCTD16 BTB domain in complex with GABAB2 peptide==
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<StructureSection load='6m8r' size='340' side='right' caption='[[6m8r]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
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Authors:
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== Structural highlights ==
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<table><tr><td colspan='2'>[[6m8r]] is a 12 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6M8R OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6M8R FirstGlance]. <br>
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Description:
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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[[Category: Unreleased Structures]]
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[6m8s|6m8s]]</td></tr>
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<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=6m8r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6m8r OCA], [http://pdbe.org/6m8r PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6m8r RCSB], [http://www.ebi.ac.uk/pdbsum/6m8r PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6m8r ProSAT]</span></td></tr>
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</table>
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== Function ==
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[[http://www.uniprot.org/uniprot/KCD16_HUMAN KCD16_HUMAN]] Auxiliary subunit of GABA-B receptors that determine the pharmacology and kinetics of the receptor response. Increases agonist potency and markedly alter the G-protein signaling of the receptors by accelerating onset and promoting desensitization (By similarity). [[http://www.uniprot.org/uniprot/GABR2_HUMAN GABR2_HUMAN]] Component of a heterodimeric G-protein coupled receptor for GABA, formed by GABBR1 and GABBR2. Within the heterodimeric GABA receptor, only GABBR1 seems to bind agonists, while GABBR2 mediates coupling to G proteins. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Signaling inhibits adenylate cyclase, stimulates phospholipase A2, activates potassium channels, inactivates voltage-dependent calcium-channels and modulates inositol phospholipid hydrolysis. Plays a critical role in the fine-tuning of inhibitory synaptic transmission. Pre-synaptic GABA receptor inhibits neurotransmitter release by down-regulating high-voltage activated calcium channels, whereas postsynaptic GABA receptor decreases neuronal excitability by activating a prominent inwardly rectifying potassium (Kir) conductance that underlies the late inhibitory postsynaptic potentials. Not only implicated in synaptic inhibition but also in hippocampal long-term potentiation, slow wave sleep, muscle relaxation and antinociception.<ref>PMID:9872316</ref> <ref>PMID:10328880</ref> <ref>PMID:18165688</ref> <ref>PMID:22660477</ref>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Kruse, A C]]
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[[Category: Zheng, S]]
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[[Category: Btb domain]]
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[[Category: Pentamer]]
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[[Category: Protein binding]]

Revision as of 15:28, 27 February 2019

Crystal structure of the KCTD16 BTB domain in complex with GABAB2 peptide

6m8r, resolution 3.20Å

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