4OBS

Crystal structure of human alpha-L-iduronidase in the P212121 form

• PDB DOI: https://doi.org/10.2210/pdb4OBS/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Arabidopsis thaliana
• Mutation(s): No 


• Deposited: 2014-01-07 Released: 2015-01-14 
• Deposition Author(s): Bie, H., Yin, J., He, X., Kermode, A.R., James, M.N.G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.26 Å
• R-Value Free: 0.235 
• R-Value Work: 0.192 
• R-Value Observed: 0.194 

Starting Model: experimental

Literature

Crystal structure of human alpha-L-iduronidase in the P212121 form

Bie, H., Yin, J., He, X., Kermode, A.R., James, M.N.G.

To be published.

Biological Assembly 1  

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

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 72.25 kDa 
• Atom Count: 5,063 
• Modelled Residue Count: 594 
• Deposited Residue Count: 627 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Alpha-L-iduronidase	A	627	Homo sapiens	Mutation(s): 0  Gene Names: IDUA EC: 3.2.1.76
UniProt & NIH Common Fund Data Resources
Find proteins for P35475 (Homo sapiens) Explore P35475  Go to UniProtKB:  P35475
PHAROS:  P35475 GTEx:  ENSG00000127415
Glycosylation
Glycosylation Sites: 3		Go to GlyGen: P35475-1

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	B	6		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G56014GC GlyCosmos:  G56014GC GlyGen:  G56014GC

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	C [auth A], D [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
SO4	L [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	E [auth A], F [auth A], G [auth A], H [auth A], I [auth A], J [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL	K [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.26 Å
• R-Value Free: 0.235 
• R-Value Work: 0.192 
• R-Value Observed: 0.194 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.64	α = 90
b = 78.03	β = 90
c = 112.46	γ = 90

Software Package:

Software Name	Purpose
MxDC	data collection
PHASER	phasing
REFMAC	refinement
XDS	data reduction
XDS	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-01-14 
Deposition Author(s): Bie, H., Yin, J., He, X., Kermode, A.R., James, M.N.G.

Revision History  

• Version 1.0: 2015-01-14
  Type: Initial release
  
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-09-20
  Changes: Data collection, Database references, Refinement description, Structure summary
• Version 2.2: 2024-10-30
  Changes: Structure summary