Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 14.29 kDa 
• Atom Count: 989 
• Modelled Residue Count: 79 
• Deposited Residue Count: 79 
• Unique protein chains: 1
• Unique nucleic acid chains: 2

1HCR

HIN RECOMBINASE BOUND TO DNA: THE ORIGIN OF SPECIFICITY IN MAJOR AND MINOR GROOVE INTERACTIONS

• PDB DOI: 10.2210/pdb1HCR/pdb
• NDB: PDE009

• Classification: DNA BINDING PROTEIN/DNA
• Mutation(s): No 


• Deposited: 1993-12-17 Released: 1994-04-30 
• Deposition Author(s): Feng, J.-A., Johnson, R.C., Dickerson, R.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Work: 0.228 
• R-Value Observed: 0.228 

Literature

Hin recombinase bound to DNA: the origin of specificity in major and minor groove interactions.

Feng, J.A., Johnson, R.C., Dickerson, R.E.

(1994) Science 263: 348-355

• PubMed: 8278807 
• DOI: 10.1126/science.8278807
• Primary Citation of Related Structures:  
  1HCR


• PubMed Abstract: 
  

The structure of the 52-amino acid DNA-binding domain of the prokaryotic Hin recombinase, complexed with a DNA recombination half-site, has been solved by x-ray crystallography at 2.3 angstrom resolution. The Hin domain consists of a three-alpha-helix bundle, with the carboxyl-terminal helix inserted into the major groove of DNA, and two flanking extended polypeptide chains that contact bases in the minor groove. The overall structure displays features resembling both a prototypical bacterial helix-turn-helix and the eukaryotic homeodomain, and in many respects is an intermediate between these two DNA-binding motifs. In addition, a new structural motif is seen: the six-amino acid carboxyl-terminal peptide of the Hin domain runs along the minor groove at the edge of the recombination site, with the peptide backbone facing the floor of the groove and side chains extending away toward the exterior. The x-ray structure provides an almost complete explanation for DNA mutant binding studies in the Hin system and for DNA specificity observed in the Hin-related family of DNA invertases.

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Related Citations: 

• Crystallization and Prelimanary X-Ray Analysis of the DNA Binding Domain of the Hin Recombinase with its DNA Binding Site
  Feng, J.-A., Simon, M., Mack, D.P., Dervan, P.B., Johnson, R.C., Dickerson, R.E.
  (1993) J Mol Biol 232: 982

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Organizational Affiliation: 

Molecular Biology Institute, University of California, Los Angeles 90024.

Macromolecules

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN (HIN RECOMBINASE)	C [auth A]	52	N/A	Mutation(s): 0
UniProt
Find proteins for P03013 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P03013  Go to UniProtKB:  P03013

Entity ID: 1
Molecule	Chains	Length	Organism	Image
DNA (5'-D(*TP*GP*TP*TP*TP*TP*TP*GP*AP*TP*AP*AP*GP*A)-3')	A [auth B]	14	N/A

Entity ID: 2
Molecule	Chains	Length	Organism	Image
DNA (5'-D(*TP*CP*TP*TP*AP*TP*CP*AP*AP*AP*AP*AP*C)-3')	B [auth C]	13	N/A

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Work: 0.228 
• R-Value Observed: 0.228 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 84.92	α = 90
b = 81.37	β = 90
c = 44.04	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1993-12-17 
• Released Date: 1994-04-30 
Deposition Author(s): Feng, J.-A., Johnson, R.C., Dickerson, R.E.

Revision History  

• Version 1.0: 1994-04-30
  Type: Initial release
  
• Version 1.1: 2008-05-22
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance