1HYA

HYALURONIC ACID, STRUCTURE OF A FULLY EXTENDED 3-FOLD HELICAL SODIUM SALT AND COMPARISON WITH THE LESS EXTENDED 4-FOLD HELICAL FORMS

• PDB DOI: https://doi.org/10.2210/pdb1HYA/pdb

• Classification: TEXTURE OF CONNECTIVE TISSUE


• Deposited: 1977-11-20 Released: 1978-05-17 
• Deposition Author(s): Arnott, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å

Literature

Hyaluronic acid: structure of a fully extended 3-fold helical sodium salt and comparison with the less extended 4-fold helical forms.

Winter, W.T., Smith, P.J., Arnott, S.

(1975) J Mol Biol 99: 219-235

• PubMed: 1206703 
• DOI: https://doi.org/10.1016/s0022-2836(75)80142-2
• Primary Citation of Related Structures:  
  1HYA

Biological Assembly 1  

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 1.22 kDa 
• Atom Count: 93 

Oligosaccharides

Help

Entity ID: 1
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-alpha-D-glucopyranuronic acid-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-alpha-D-glucopyranuronic acid-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-alpha-D-glucopyranuronic acid	A	6		N/A
Glycosylation Resources
GlyTouCan:  G42154ZL GlyCosmos:  G42154ZL GlyGen:  G42154ZL

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NA	B [auth A], C [auth A], D [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 11.7	α = 90
b = 11.7	β = 90
c = 28.5	γ = 120

Software Package:

Software Name	Purpose
LINKED-ATOM	refinement
LALS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1978-05-17 
Deposition Author(s): Arnott, S.

Revision History  

• Version 1.0: 1978-05-17
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2011-11-16
  Changes: Atomic model
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Other, Structure summary
• Version 2.1: 2024-02-07
  Changes: Data collection, Database references, Structure summary