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- PDB-9p1m: Cryo-EM structure of CD73 in complex with antibody Sym024 -

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Basic information

Entry
Database: PDB / ID: 9p1m
TitleCryo-EM structure of CD73 in complex with antibody Sym024
Components
  • 5'-nucleotidase
  • Antibody Heavy Chain
  • Antibody Light Chain
KeywordsHYDROLASE / Antigen-Antibody Complex / Drug Target
Function / homology
Function and homology information


thymidylate 5'-phosphatase / : / ADP catabolic process / 5'-deoxynucleotidase / 5'-deoxynucleotidase activity / 7-methylguanosine nucleotidase / adenosine biosynthetic process / inhibition of non-skeletal tissue mineralization / Pyrimidine catabolism / AMP catabolic process ...thymidylate 5'-phosphatase / : / ADP catabolic process / 5'-deoxynucleotidase / 5'-deoxynucleotidase activity / 7-methylguanosine nucleotidase / adenosine biosynthetic process / inhibition of non-skeletal tissue mineralization / Pyrimidine catabolism / AMP catabolic process / : / IMP-specific 5'-nucleotidase / : / Nicotinate metabolism / 5'-nucleotidase / Purine catabolism / 5'-nucleotidase activity / leukocyte cell-cell adhesion / DNA metabolic process / response to ATP / ATP metabolic process / Purinergic signaling in leishmaniasis infection / calcium ion homeostasis / negative regulation of inflammatory response / external side of plasma membrane / nucleotide binding / cell surface / extracellular exosome / zinc ion binding / nucleoplasm / identical protein binding / membrane / plasma membrane / cytosol
Similarity search - Function
5'-nucleotidase signature 1. / 5'-Nucleotidase, conserved site / 5'-nucleotidase signature 2. / 5'-Nucleotidase, C-terminal / 5'-nucleotidase, C-terminal domain / 5'-Nucleotidase/apyrase / 5'-Nucleotidase, C-terminal domain superfamily / Calcineurin-like phosphoesterase domain, ApaH type / Calcineurin-like phosphoesterase / Metallo-dependent phosphatase-like
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsBansia, H. / Armbruster, E. / Des Georges, A.
Funding support1items
OrganizationGrant numberCountry
Other private
CitationJournal: To Be Published
Title: Cryo-EM structure of CD73 in complex with antibody Sym024
Authors: Bansia, H. / Armbruster, E. / Des Georges, A.
History
DepositionJun 10, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 24, 2025Provider: repository / Type: Initial release
Revision 1.0Dec 24, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Dec 24, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Dec 24, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: 5'-nucleotidase
B: 5'-nucleotidase
C: Antibody Light Chain
D: Antibody Heavy Chain
E: Antibody Light Chain
F: Antibody Heavy Chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)265,34212
Polymers264,6386
Non-polymers7046
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein 5'-nucleotidase / 5'-NT / 5'-deoxynucleotidase / Ecto-5'-nucleotidase / IMP-specific 5'-nucleotidase / Thymidylate 5'- ...5'-NT / 5'-deoxynucleotidase / Ecto-5'-nucleotidase / IMP-specific 5'-nucleotidase / Thymidylate 5'-phosphatase


Mass: 59514.633 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: NT5E, NT5, NTE / Production host: Cricetulus griseus (Chinese hamster)
References: UniProt: P21589, thymidylate 5'-phosphatase, 5'-nucleotidase, 5'-deoxynucleotidase, 7-methylguanosine nucleotidase, IMP-specific 5'-nucleotidase
#2: Antibody Antibody Light Chain


Mass: 23200.814 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): HEK293 / Production host: Homo sapiens (human)
#3: Antibody Antibody Heavy Chain


Mass: 49603.695 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): HEK293 / Production host: Homo sapiens (human)
#4: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#5: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Zn
Has ligand of interestN
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: CD73 dimer bound to antibody Sym024 / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Cricetulus griseus (Chinese hamster)
Buffer solutionpH: 5.5
SpecimenConc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

MicroscopyModel: TFS TITAN THEMIS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.21.2_5419: / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 286779 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00314180
ELECTRON MICROSCOPYf_angle_d0.55819295
ELECTRON MICROSCOPYf_dihedral_angle_d4.9112003
ELECTRON MICROSCOPYf_chiral_restr0.0452208
ELECTRON MICROSCOPYf_plane_restr0.0042485

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