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Open data
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Basic information
Entry | Database: PDB / ID: 8jga | ||||||
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Title | Cryo-EM structure of Mi3 fused with FKBP | ||||||
![]() | Peptidyl-prolyl cis-trans isomerase FKBP1A,2-dehydro-3-deoxyphosphogluconate aldolase/4-hydroxy-2-oxoglutarate aldolase | ||||||
![]() | LYASE / protein cage Scaffold | ||||||
Function / homology | ![]() macrolide binding / activin receptor binding / cytoplasmic side of membrane / regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion / signaling receptor inhibitor activity / transforming growth factor beta receptor binding / TGFBR1 LBD Mutants in Cancer / type I transforming growth factor beta receptor binding / negative regulation of activin receptor signaling pathway / heart trabecula formation ...macrolide binding / activin receptor binding / cytoplasmic side of membrane / regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion / signaling receptor inhibitor activity / transforming growth factor beta receptor binding / TGFBR1 LBD Mutants in Cancer / type I transforming growth factor beta receptor binding / negative regulation of activin receptor signaling pathway / heart trabecula formation / terminal cisterna / ryanodine receptor complex / I-SMAD binding / regulation of amyloid precursor protein catabolic process / protein maturation by protein folding / ventricular cardiac muscle tissue morphogenesis / 'de novo' protein folding / FK506 binding / channel regulator activity / TGF-beta receptor signaling activates SMADs / mTORC1-mediated signalling / protein peptidyl-prolyl isomerization / Calcineurin activates NFAT / regulation of ryanodine-sensitive calcium-release channel activity / regulation of immune response / heart morphogenesis / supramolecular fiber organization / sarcoplasmic reticulum membrane / T cell activation / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / sarcoplasmic reticulum / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / calcium ion transmembrane transport / negative regulation of transforming growth factor beta receptor signaling pathway / Z disc / regulation of protein localization / SARS-CoV-1 activates/modulates innate immune responses / protein folding / positive regulation of protein binding / protein refolding / positive regulation of canonical NF-kappaB signal transduction / transmembrane transporter binding / amyloid fibril formation / Potential therapeutics for SARS / lyase activity / membrane / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.68 Å | ||||||
![]() | Zhang, H.W. / Kang, W. / Xue, C. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Dynamic Metabolons Using Stimuli-Responsive Protein Cages. Authors: Wei Kang / Xiao Ma / Huawei Zhang / Juncai Ma / Chunxue Liu / Jiani Li / Hanhan Guo / Daping Wang / Rui Wang / Bo Li / Chuang Xue / ![]() ![]() Abstract: Naturally evolved metabolons have the ability to assemble and disassemble in response to environmental stimuli, allowing for the rapid reorganization of chemical reactions in living cells to meet ...Naturally evolved metabolons have the ability to assemble and disassemble in response to environmental stimuli, allowing for the rapid reorganization of chemical reactions in living cells to meet changing cellular needs. However, replicating such capability in synthetic metabolons remains a challenge due to our limited understanding of the mechanisms by which the assembly and disassembly of such naturally occurring multienzyme complexes are controlled. Here, we report the synthesis of chemical- and light-responsive protein cages for assembling synthetic metabolons, enabling the dynamic regulation of enzymatic reactions in living cells. Particularly, a chemically responsive domain was fused to a self-assembled protein cage subunit, generating engineered protein cages capable of displaying proteins containing cognate interaction domains on their surfaces in response to small molecular cues. Chemical-induced colocalization of sequential enzymes on protein cages enhances the specificity of the branched deoxyviolacein biosynthetic reactions by 2.6-fold. Further, by replacing the chemical-inducible domain with a light-inducible dimerization domain, we created an optogenetic protein cage capable of reversibly recruiting and releasing targeted proteins onto and from the exterior of the protein cages in tens of seconds by on-off of blue light. Tethering the optogenetic protein cages to membranes enables the formation of light-switchable, membrane-bound metabolons, which can repeatably recruit-release enzymes, leading to the manipulation of substrate utilization across membranes on demand. Our work demonstrates a powerful and versatile strategy for constructing dynamic metabolons in engineered living cells for efficient and controllable biocatalysis. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 49.5 KB | Display | ![]() |
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PDB format | ![]() | 31.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 36228MC ![]() 8jgcC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 36730.309 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() Gene: FKBP1A, FKBP1, FKBP12, TM_0066 / Production host: ![]() ![]() References: UniProt: P62942, UniProt: Q9WXS1, peptidylprolyl isomerase |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: FKBP-Mi3 / Type: COMPLEX / Entity ID: all / Source: MULTIPLE SOURCES |
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Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1500 nm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
EM software | Name: PHENIX / Version: dev_3951: / Category: model refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.68 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 33473 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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