1K2I

Crystal Structure of Gamma-Chymotrypsin in Complex with 7-Hydroxycoumarin

Structural Biology Knowledgebase: 1K2I SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.199
  • R-Value Work: 0.180

Literature

Macromolecules
Sequence Display for 1K2I

Classification: hydrolase

Total Structure Weight: 25962.40

Macromolecule Entities
Molecule Chains Length Organism Details
CHYMOTRYPSINOGEN A 1 245 Bos taurus EC#: 3.4.21.1 IUBMB
Gene Name(s):
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
SN1
Query on SN1

1 2,4-DIHYDROXY-TRANS CINNAMIC ACID
C9 H8 O4
HGEFWFBFQKWVMY-DUXPYHPUSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
SO4
Query on SO4

1 SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
SN1 N/A in BindingDB
N/A in BindingMoad
IC50: 780000 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.199
  • R-Value Work: 0.180
  • Space Group: P 42 21 2
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 69.85 α = 90.00
b = 69.85 β = 90.00
c = 97.38 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2001-09-27
  • Released Date: 2001-12-05
  • Deposition author(s): Ghani, U., Ng, K.K.S., Atta-ur-Rahman, Choudhary, M.I., Ullah, N., James, M.N.G.

Revision History

  • 2011-07-13
    Type: Biological assembly | Details: Added software calculated values
  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4