8HHK

Crystal structure of a triple-helix region of human collagen type III

• PDB DOI: https://doi.org/10.2210/pdb8HHK/pdb

• Classification: CELL ADHESION
• Organism(s): Homo sapiens
• Expression System: synthetic construct
• Mutation(s): No 


• Deposited: 2022-11-16 Released: 2023-01-18 
• Deposition Author(s): Yan, Z.C., Zhang, D., Qin, B.
• Funding Organization(s): Other private

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.314 
• R-Value Work: 0.251 
• R-Value Observed: 0.254 

Literature

Crystal structure of a triple-helix region of human collagen type III

Yan, Z.C., Zhang, D., Qin, B.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 17.33 kDa 
• Atom Count: 1,034 
• Modelled Residue Count: 137 
• Deposited Residue Count: 180 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PRO-HYP-GLY-PRO-HYP-GLY-PRO-HYP-GLY-PHE-ASP-GLY-ARG-ASN-GLY-GLU-LYS-GLY	A, B, C, D [auth G], E [auth H], F [auth I]	30	Homo sapiens	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	G [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
HYP	A, B, C, D [auth G], E [auth H], F [auth I]	L-PEPTIDE LINKING	C5 H9 N O3		PRO

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.314 
• R-Value Work: 0.251 
• R-Value Observed: 0.254 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 15.335	α = 101.911
b = 29.155	β = 91.584
c = 69.047	γ = 101.154

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-01-18 
Deposition Author(s): Yan, Z.C., Zhang, D., Qin, B.

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Funding Organization	Location	Grant Number
Other private		--

Revision History  

• Version 1.0: 2023-01-18
  Type: Initial release