8zv3: Difference between revisions
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==Structure of G202A/G203A-hPCC BCCP-BC Conformation== | |||
<StructureSection load='8zv3' size='340' side='right'caption='[[8zv3]], [[Resolution|resolution]] 2.77Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[8zv3]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8ZV3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8ZV3 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]] 2.77Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1VU:PROPIONYL+COENZYME+A'>1VU</scene>, <scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=BTN:BIOTIN'>BTN</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=8zv3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8zv3 OCA], [https://pdbe.org/8zv3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8zv3 RCSB], [https://www.ebi.ac.uk/pdbsum/8zv3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8zv3 ProSAT]</span></td></tr> | |||
</table> | |||
== Disease == | |||
[https://www.uniprot.org/uniprot/PCCA_HUMAN PCCA_HUMAN] Defects in PCCA are the cause of propionic acidemia type I (PA-1) [MIM:[https://omim.org/entry/606054 606054]. PA-1 is a life-threatening disease characterized by episodic vomiting, lethargy and ketosis, neutropenia, periodic thrombocytopenia, hypogammaglobulinemia, developmental retardation, and intolerance to protein.<ref>PMID:10101253</ref> <ref>PMID:12559849</ref> <ref>PMID:15059621</ref> <ref>PMID:10329019</ref> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/PCCA_HUMAN PCCA_HUMAN] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Propionyl-CoA carboxylase (PCC) is a biotin-dependent mitochondrial enzyme responsible for propionyl-CoA catabolism. Deficiencies in human PCC (hPCC) cause propionic acidemia, a severe metabolic disorder driven by toxic metabolite accumulation. Despite its therapeutic relevance, the structural basis of hPCC's catalytic function remains unresolved. Here, we present high-resolution cryo-EM structures of hPCC in four distinct states, unliganded, ADP-, AMPPNP-, and ATP-bound/substrate-bound, capturing the full trajectory of the biotin carboxyl carrier protein (BCCP) domain as it translocates between active sites. Our results reinforce the crucial role of nucleotide-gated B-lid subdomain in synchronizing catalysis through coupling with BCCP movement. Structural and biochemical analysis of 10 disease-associated variants reveals how mutations disrupt key domain interfaces and dynamic motions required for activity. These new insights define the mechanistic principles governing hPCC functions, establish a structural framework for understanding PCC-related disorders, and lay the groundwork for future efforts to engineer functional replacements or modulators for metabolic therapy. | |||
Nanoscale conformational dynamics of human propionyl-CoA carboxylase.,Yan H, Ni F, Wang Q, Ma J Structure. 2025 Nov 5:S0969-2126(25)00396-X. doi: 10.1016/j.str.2025.10.009. PMID:41197621<ref>PMID:41197621</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 8zv3" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | |||
[[Category: Large Structures]] | |||
[[Category: Ma J]] | |||
[[Category: Ni F]] | |||
[[Category: Wang Q]] | |||
[[Category: Yan H]] | |||
Latest revision as of 07:25, 19 November 2025
Structure of G202A/G203A-hPCC BCCP-BC Conformation
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