1CMC

THREE DIMENSIONAL CRYSTAL STRUCTURES OF E. COLI MET REPRESSOR WITH AND WITHOUT COREPRESSOR

Structural Biology Knowledgebase: 1CMC SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Observed: 0.183

Literature

Macromolecules
Sequence Display for 1CMC

Classification: DNA-BINDING REGULATORY PROTEIN

Total Structure Weight: 24900.82

Macromolecule Entities
Molecule Chains Length Organism Details
MET REPRESSOR A, B 104 Escherichia coli Gene Name(s): metJ b3938 JW3909
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

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

A, B S-ADENOSYLMETHIONINE
C15 H22 N6 O5 S
MEFKEPWMEQBLKI-FCKMPRQPSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
MG
Query on MG

A, B MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
SAM EC50: 17 nM (100) BindingDB
Kd: 4 nM (100) BindingDB

N/A in BindingMoad
N/A in PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Observed: 0.183
  • Space Group: P 32 2 1

Unit Cell:

Length (Å) Angle (°)
a = 75.07 α = 90.00
b = 75.07 β = 90.00
c = 81.80 γ = 120.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1992-08-28
  • Released Date: 1993-10-31
  • Deposition author(s): Somers, W.S., Phillips, S.E.V.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4