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- PDB-8ghr: Structure of human ENPP1 in complex with variable heavy domain VH27.2 -
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Open data
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Basic information
Entry | Database: PDB / ID: 8ghr | |||||||||
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Title | Structure of human ENPP1 in complex with variable heavy domain VH27.2 | |||||||||
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![]() | IMMUNE SYSTEM / phosphodiesterase / inhibitor | |||||||||
Function / homology | ![]() GTP diphosphatase activity / cyclic-GMP-AMP hydrolase activity / negative regulation of hh target transcription factor activity / Vitamin B2 (riboflavin) metabolism / UTP diphosphatase activity / inorganic diphosphate transport / phosphodiesterase I / 3'-phosphoadenosine 5'-phosphosulfate binding / dinucleotide phosphatase activity / Vitamin B5 (pantothenate) metabolism ...GTP diphosphatase activity / cyclic-GMP-AMP hydrolase activity / negative regulation of hh target transcription factor activity / Vitamin B2 (riboflavin) metabolism / UTP diphosphatase activity / inorganic diphosphate transport / phosphodiesterase I / 3'-phosphoadenosine 5'-phosphosulfate binding / dinucleotide phosphatase activity / Vitamin B5 (pantothenate) metabolism / nucleotide diphosphatase / nucleoside triphosphate catabolic process / 3'-phosphoadenosine 5'-phosphosulfate metabolic process / negative regulation of protein autophosphorylation / nucleoside triphosphate diphosphatase activity / intracellular phosphate ion homeostasis / nucleic acid metabolic process / sequestering of triglyceride / ATP diphosphatase activity / negative regulation of glycogen biosynthetic process / negative regulation of bone mineralization / phosphate ion homeostasis / melanocyte differentiation / phosphodiesterase I activity / scavenger receptor activity / negative regulation of glucose import / regulation of bone mineralization / phosphate-containing compound metabolic process / exonuclease activity / polysaccharide binding / response to ATP / negative regulation of fat cell differentiation / bone mineralization / phosphatase activity / : / 3',5'-cyclic-AMP phosphodiesterase activity / ATP metabolic process / immunoglobulin complex, circulating / immunoglobulin receptor binding / negative regulation of insulin receptor signaling pathway / generation of precursor metabolites and energy / complement activation, classical pathway / antigen binding / insulin receptor binding / negative regulation of cell growth / cellular response to insulin stimulus / gene expression / antibacterial humoral response / basolateral plasma membrane / nucleic acid binding / blood microparticle / immune response / lysosomal membrane / calcium ion binding / cell surface / protein homodimerization activity / extracellular space / zinc ion binding / extracellular exosome / ATP binding / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
![]() | Carozza, J.A. / Wang, H. / Solomon, P.E. / Wells, J.A. / Li, L. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Discovery of VH domains that allosterically inhibit ENPP1. Authors: Paige E Solomon / Colton J Bracken / Jacqueline A Carozza / Haoqing Wang / Elizabeth P Young / Alon Wellner / Chang C Liu / E Alejandro Sweet-Cordero / Lingyin Li / James A Wells / ![]() Abstract: Ectodomain phosphatase/phosphodiesterase-1 (ENPP1) is overexpressed on cancer cells and functions as an innate immune checkpoint by hydrolyzing extracellular cyclic guanosine monophosphate adenosine ...Ectodomain phosphatase/phosphodiesterase-1 (ENPP1) is overexpressed on cancer cells and functions as an innate immune checkpoint by hydrolyzing extracellular cyclic guanosine monophosphate adenosine monophosphate (cGAMP). Biologic inhibitors have not yet been reported and could have substantial therapeutic advantages over current small molecules because they can be recombinantly engineered into multifunctional formats and immunotherapies. Here we used phage and yeast display coupled with in cellulo evolution to generate variable heavy (VH) single-domain antibodies against ENPP1 and discovered a VH domain that allosterically inhibited the hydrolysis of cGAMP and adenosine triphosphate (ATP). We solved a 3.2 Å-resolution cryo-electron microscopy structure for the VH inhibitor complexed with ENPP1 that confirmed its new allosteric binding pose. Finally, we engineered the VH domain into multispecific formats and immunotherapies, including a bispecific fusion with an anti-PD-L1 checkpoint inhibitor that showed potent cellular activity. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 331.7 KB | Display | ![]() |
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PDB format | ![]() | 256.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.6 MB | Display | ![]() |
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Full document | ![]() | 1.6 MB | Display | |
Data in XML | ![]() | 62.7 KB | Display | |
Data in CIF | ![]() | 93 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 40047MC 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
-Antibody , 2 types, 4 molecules ABCD
#1: Antibody | Mass: 115488.617 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Antibody | Mass: 13564.035 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Sugars , 2 types, 8 molecules ![](data/chem/img/NAG.gif)
#3: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #6: Sugar | ChemComp-NAG / |
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-Non-polymers , 4 types, 14 molecules ![](data/chem/img/ZN.gif)
![](data/chem/img/AMP.gif)
![](data/chem/img/CA.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/AMP.gif)
![](data/chem/img/CA.gif)
![](data/chem/img/HOH.gif)
#4: Chemical | ChemComp-ZN / #5: Chemical | #7: Chemical | #8: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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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: ENPP1-VH27 complex / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.4 / Details: phosphate buffered saline |
Specimen | Conc.: 2 mg/ml / 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: 2000 nm / Nominal defocus min: 700 nm |
Image recording | Electron dose: 57 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 77023 / Symmetry type: POINT | ||||||||||||||||||||||||
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