1ITT

Average Crystal Structure of (Pro-Pro-Gly)9 at 1.0 angstroms Resolution

• PDB DOI: https://doi.org/10.2210/pdb1ITT/pdb

• Classification: STRUCTURAL PROTEIN
• Mutation(s): No 


• Deposited: 2002-02-03 Released: 2003-02-03 
• Deposition Author(s): Hongo, C., Nagarajan, V., Noguchi, K., Kamitori, S., Okuyama, K., Tanaka, Y., Nishino, N.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.00 Å
• R-Value Free: 0.294 
• R-Value Work: 0.222 

Literature

Average Crystal Structure of (Pro-Pro-Gly)9 at 1.0 angstroms Resolution

Hongo, C., Nagarajan, V., Noguchi, K., Kamitori, S., Okuyama, K., Tanaka, Y., Nishino, N.

(2001) Polym J 33: 812-818

• DOI: https://doi.org/10.1295/polymj.33.812

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 1.81 kDa 
• Atom Count: 160 
• Modelled Residue Count: 21 
• Deposited Residue Count: 21 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
COLLAGEN TRIPLE HELIX	A	7	N/A	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
COLLAGEN TRIPLE HELIX	B	7	N/A	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
COLLAGEN TRIPLE HELIX	C	7	N/A	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.00 Å
• R-Value Free: 0.294 
• R-Value Work: 0.222 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 26.821	α = 90
b = 26.333	β = 90
c = 20.246	γ = 90

Software Package:

Software Name	Purpose
TEXSAN	data collection
teXsan	data reduction
X-PLOR	model building
SHELXL-97	refinement
TEXSAN	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-02-03 
Deposition Author(s): Hongo, C., Nagarajan, V., Noguchi, K., Kamitori, S., Okuyama, K., Tanaka, Y., Nishino, N.

Revision History  

• Version 1.0: 2003-02-03
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2013-12-25
  Changes: Derived calculations
• Version 1.4: 2023-12-27
  Changes: Data collection, Database references
• Version 1.5: 2024-04-03
  Changes: Refinement description