5PTI

STRUCTURE OF BOVINE PANCREATIC TRYPSIN INHIBITOR. RESULTS OF JOINT NEUTRON AND X-RAY REFINEMENT OF CRYSTAL FORM II


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1 Å

wwPDB Validation

Currently 5PTI does not have a wwPDB validation report.


This is version 1.3 of the entry. See complete history

Literature

Structure of bovine pancreatic trypsin inhibitor. Results of joint neutron and X-ray refinement of crystal form II

Wlodawer, A.Walter, J.Huber, R.Sjolin, L.

(1984) J.Mol.Biol. 180: 301-329

  • Also Cited By: 1QLQ

  • PubMed Abstract: 
  • The structure of form II crystals of bovine pancreatic trypsin inhibitor has been investigated by joint refinement of X-ray and neutron data. Crystallographic R factors for the final model were 0.200 for the X-ray data extending to 1 A resolution and ...

    The structure of form II crystals of bovine pancreatic trypsin inhibitor has been investigated by joint refinement of X-ray and neutron data. Crystallographic R factors for the final model were 0.200 for the X-ray data extending to 1 A resolution and 0.197 for the 1.8 A neutron data. This model was strongly restrained, with 0.020 A root-mean-square (r.m.s.) departure of bond lengths from their ideal values and 0.019 A r.m.s. departure of planar groups from planarity. The resulting structure was very similar to that of crystal form I (r.m.s. deviation for main chain atoms was 0.40 A); nevertheless larger deviations were observed in particular regions of the chain. Twenty out of 63 ordered water molecules occupy similar positions (deviation less than 1 A) in both models. Eleven amide hydrogens were found to be protected from exchange after three months of soaking the crystals in deuterated mother liquor at pH 8.2. Their locations were in excellent agreement with the results obtained by two-dimensional nuclear magnetic resonance, but the rates of exchange are much lower in the crystalline state.


    Related Citations: 
    • Comparison of Two Highly Refined Structures of Bovine Pancreatic Trypsin Inhibitor
      Wlodawer, A.,Deisenhofer, J.,Huber, R.
      (1987) J.Mol.Biol. 193: 145
    • Pancreatic Trypsin Inhibitor. A New Crystal Form and its Analysis
      Walter, J.,Huber, R.
      (1983) J.Mol.Biol. 167: 911



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRYPSIN INHIBITOR
A
58Bos taurusN/A
Find proteins for P00974 (Bos taurus)
Go to UniProtKB:  P00974
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
UNX
Query on UNX

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Download CCD File 
A
UNKNOWN ATOM OR ION
X
*
 Ligand Interaction
DOD
Query on DOD

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Download CCD File 
A
DEUTERATED WATER
D2 O
XLYOFNOQVPJJNP-ZSJDYOACSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1 Å
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 74.100α = 90.00
b = 23.400β = 90.00
c = 28.900γ = 90.00

Structure Validation

Currently 5PTI does not have a wwPDB validation report.



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1984-10-29
    Type: Initial release
  • Version 1.1: 2008-03-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-07-27
    Type: Atomic model, Data collection