1NTP

USE OF THE NEUTRON DIFFRACTION H/D EXCHANGE TECHNIQUE TO DETERMINE THE CONFORMATIONAL DYNAMICS OF TRYPSIN

• PDB DOI: https://doi.org/10.2210/pdb1NTP/pdb

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


• Deposited: 1987-09-16 Released: 1988-01-16 
• Deposition Author(s): Kossiakoff, A.A.

---

Experimental Data Snapshot

• Method: NEUTRON DIFFRACTION
• Resolution: 1.80 Å
• R-Value Work: 
  0.187 (Depositor) 

Literature

Use of the neutron diffraction--H/D exchange technique to determine the conformational dynamics of trypsin

Kossiakoff, A.A.

(1984) Basic Life Sci 27: 281-304

• PubMed: 6712567 
• DOI: https://doi.org/10.1007/978-1-4899-0375-4_17
• Primary Citation of Related Structures:  
  1NTP

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 23.47 kDa 
• Atom Count: 1,636 
• Modelled Residue Count: 223 
• Deposited Residue Count: 223 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BETA-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
ISP	B [auth A]	PHOSPHORYLISOPROPANE C3 H9 O4 P QPPQHRDVPBTVEV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: NEUTRON DIFFRACTION
• Resolution: 1.80 Å
• R-Value Work:  0.187 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 54.84	α = 90
b = 58.61	β = 90
c = 67.47	γ = 90

Structure Validation

Entry History 

Deposition Data

• Released Date: 1988-01-16 
Deposition Author(s): Kossiakoff, A.A.

Revision History  

• Version 1.0: 1988-01-16
  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: 2017-11-29
  Changes: Derived calculations, Other
• Version 1.4: 2024-10-30
  Changes: Data collection, Database references, Structure summary