2RSL

REFINEMENT OF GAMMA DELTA RESOLVASE REVEALS A STRIKINGLY FLEXIBLE MOLECULE

• PDB DOI: https://doi.org/10.2210/pdb2RSL/pdb
• Entry: 2RSL supersedes: 1RSL

• Classification: SITE-SPECIFIC RECOMBINASE
• Organism(s): Escherichia coli
• Mutation(s): No 


• Deposited: 1993-09-08 Released: 1994-04-30 
• Deposition Author(s): Rice, P.A., Steitz, T.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Observed: 0.200 

Literature

Refinement of gamma delta resolvase reveals a strikingly flexible molecule.

Rice, P.A., Steitz, T.A.

(1994) Structure 2: 371-384

• PubMed: 8081753 
• DOI: https://doi.org/10.1016/s0969-2126(00)00039-3
• Primary Citation of Related Structures:  
  2RSL


• PubMed Abstract: 
  

  gamma delta resolvase is a 20.5 kDa enzyme that catalyzes a site-specific recombination in the second step of the transposition of the gamma delta transposon and requires no cofactors other than Mg2+ for activity. Dimers of resolvase bind cooperatively to DNA at three inverted repeat sequences of differing geometry but catalyze recombination at only one site.

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Organizational Affiliation: 

Department of Molecular Biophysics, Howard Hughes Medical Institute, Yale University, New Haven, CT 06520-8114.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 46.84 kDa 
• Atom Count: 2,876 
• Modelled Residue Count: 354 
• Deposited Residue Count: 420 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GAMMA DELTA-RESOLVASE	A, B, C	140	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P03012 (Escherichia coli (strain K12)) Explore P03012  Go to UniProtKB:  P03012

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	D [auth C], E [auth C], F [auth C]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Observed: 0.200 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 76.8	α = 90
b = 191.3	β = 90
c = 63.4	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
PROLSQ	refinement
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1994-04-30 
Deposition Author(s): Rice, P.A., Steitz, T.A.
• This entry supersedes: 1RSL

Revision History  

• Version 1.0: 1994-04-30
  Type: Initial release
  
• Version 1.1: 2008-03-25
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2015-09-16
  Changes: Other
• Version 1.4: 2024-02-21
  Changes: Data collection, Database references, Derived calculations, Other