2EF1

Crystal structure of the extracellular domain of human CD38

• PDB DOI: https://doi.org/10.2210/pdb2EF1/pdb
• Entry: 2EF1 supersedes: 2DF1

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2007-02-20 Released: 2007-02-27 
• Deposition Author(s): Kukimoto-Niino, M., Nureki, O., Murayama, K., Shirouzu, M., Katada, T., Hara-Yokoyama, M., Yokoyama, S., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.256 
• R-Value Work: 0.203 
• R-Value Observed: 0.203 

Starting Model: experimental

Literature

Crystal structure of the extracellular domain of human CD38

Kukimoto-Niino, M., Nureki, O., Murayama, K., Shirouzu, M., Katada, T., Hara-Yokoyama, M., Yokoyama, S.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 59.86 kDa 
• Atom Count: 4,185 
• Modelled Residue Count: 486 
• Deposited Residue Count: 512 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ADP-ribosyl cyclase 1	A, B	256	Homo sapiens	Mutation(s): 0  Gene Names: CD38 EC: 3.2.2.5
UniProt & NIH Common Fund Data Resources
Find proteins for P28907 (Homo sapiens) Explore P28907  Go to UniProtKB:  P28907
GTEx:  ENSG00000004468

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EPE	C [auth A], D [auth B]	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID C8 H18 N2 O4 S JKMHFZQWWAIEOD-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.256 
• R-Value Work: 0.203 
• R-Value Observed: 0.203 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.593	α = 90
b = 51.164	β = 97.53
c = 101.135	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-02-27 
Deposition Author(s): Kukimoto-Niino, M., Nureki, O., Murayama, K., Shirouzu, M., Katada, T., Hara-Yokoyama, M., Yokoyama, S., RIKEN Structural Genomics/Proteomics Initiative (RSGI)
• This entry supersedes: 2DF1

Revision History  

• Version 1.0: 2007-02-27
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description