2PTN

ON THE DISORDERED ACTIVATION DOMAIN IN TRYPSINOGEN. CHEMICAL LABELLING AND LOW-TEMPERATURE CRYSTALLOGRAPHY

• PDB DOI: https://doi.org/10.2210/pdb2PTN/pdb
• Entry: 2PTN supersedes: 1PTN

• Classification: HYDROLASE (SERINE PROTEINASE)
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 1981-10-26 Released: 1982-03-04 
• Deposition Author(s): Walter, J., Steigemann, W., Singh, T.P., Bartunik, H., Bode, W., Huber, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Work: 0.193 

Literature

On the Disordered Activation Domain in Trypsinogen. Chemical Labelling and Low-Temperature Crystallography

Walter, J., Steigemann, W., Singh, T.P., Bartunik, H., Bode, W., Huber, R.

(1982) Acta Crystallogr B 38: 1462-1472

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 23.36 kDa 
• Atom Count: 1,712 
• Modelled Residue Count: 223 
• Deposited Residue Count: 223 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRYPSIN	A	223	Bos taurus	Mutation(s): 0  EC: 3.4.21.4
UniProt
Find proteins for P00760 (Bos taurus) Explore P00760  Go to UniProtKB:  P00760

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	B [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Work: 0.193 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 54.89	α = 90
b = 58.52	β = 90
c = 67.63	γ = 90

Structure Validation

Entry History 

Deposition Data

• Released Date: 1982-03-04 
Deposition Author(s): Walter, J., Steigemann, W., Singh, T.P., Bartunik, H., Bode, W., Huber, R.
• This entry supersedes: 1PTN

Revision History  

• Version 1.0: 1982-03-04
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-06-05
  Changes: Data collection, Database references, Derived calculations, Other
• Version 1.4: 2024-10-09
  Changes: Structure summary