1JHG | pdb_00001jhg

TRP REPRESSOR MUTANT V58I

• PDB DOI: https://doi.org/10.2210/pdb1JHG/pdb

• Classification: DNA BINDING PROTEIN
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 1996-07-19 Released: 1997-03-12 
• Deposition Author(s): Lawson, C.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.30 Å
• R-Value Free: 
  0.172 (Depositor) 
• R-Value Work: 
  0.171 (DCC) 
• R-Value Observed: 
  0.122 (Depositor) 

Literature

An atomic view of the L-tryptophan binding site of trp repressor.

Lawson, C.L.

(1996) Nat Struct Biol 3: 986-987

• PubMed: 8946848 
• DOI: https://doi.org/10.1038/nsb1296-986
• Primary Citation Related Structures: 
  1JHG

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content 

• Total Structure Weight: 11.88 kDa 
• Atom Count: 1,015 
• Modeled Residue Count: 101 
• Deposited Residue Count: 101 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRP OPERON REPRESSOR	A	101	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P0A881 (Escherichia coli (strain K12)) Explore P0A881  Go to UniProtKB:  P0A881

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TRP	C [auth A]	TRYPTOPHAN C11 H12 N2 O2 QIVBCDIJIAJPQS-VIFPVBQESA-N
PO4	B [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.30 Å
• R-Value Free:  0.172 (Depositor) 
• R-Value Work:  0.171 (DCC) 
• R-Value Observed: 0.122 (Depositor) 

Space Group: P 2₁ 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 53.536	α = 90
b = 32.789	β = 90
c = 53.385	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHELXL-93	model building
SHELXL-93	refinement
SHELXL-93	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-03-12 
Deposition Author(s): Lawson, C.L.

Revision History  

• Version 1.0: 1997-03-12
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2014-05-21
  Changes: Database references
• Version 1.4: 2021-11-03
  Changes: Database references, Derived calculations
• Version 1.5: 2024-02-07
  Changes: Data collection