1HJZ

Crystal structure of AF1521 protein containing a macroH2A domain

• PDB DOI: https://doi.org/10.2210/pdb1HJZ/pdb

• Classification: MACRO_H2A DOMAIN/HYDROLASE
• Organism(s): Archaeoglobus fulgidus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2003-03-05 Released: 2003-07-10 
• Deposition Author(s): Allen, M.D., Buckle, A.M., Cordell, S.C., Lowe, J., Bycroft, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.227 
• R-Value Work: 0.203 
• R-Value Observed: 0.203 

Literature

The Crystal Structure of Af1521 a Protein from Archaeoglobus Fulgidus with Homology to the Non-Histone Domain of Macroh2A

Allen, M.D., Buckle, A.M., Cordell, S.C., Lowe, J., Bycroft, M.

(2003) J Mol Biol 330: 503

• PubMed: 12842467 
• DOI: https://doi.org/10.1016/s0022-2836(03)00473-x
• Primary Citation of Related Structures:  
  1HJZ


• PubMed Abstract: 
  

  MacroH2A is an unusual histone H2A variant that has an extensive C-terminal tail that comprises approximately two thirds of the protein. The C-terminal non-histone domain of macroH2A is also found in a number of other proteins and has been termed the macro domain. Here we report the crystal structure to 1.7A of AF1521, a protein consisting of a stand-alone macro domain from Archaeoglobus fulgidus. The structure has a mixed alpha/beta fold that closely resembles the N-terminal DNA binding domain of the Escherichia coli leucine aminopeptidase PepA. The structure also shows some similarity to members of the P-loop family of nucleotide hydrolases.

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Organizational Affiliation: 

MRC Centre for Protein Engineering, and Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, UK.

Biological Assembly 1  

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

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

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 42.36 kDa 
• Atom Count: 3,249 
• Modelled Residue Count: 384 
• Deposited Residue Count: 384 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HYPOTHETICAL PROTEIN AF1521	A, B	192	Archaeoglobus fulgidus	Mutation(s): 0  EC: 3.2.2
UniProt
Find proteins for O28751 (Archaeoglobus fulgidus (strain ATCC 49558 / DSM 4304 / JCM 9628 / NBRC 100126 / VC-16)) Explore O28751  Go to UniProtKB:  O28751

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MES	C [auth A], D [auth B]	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.227 
• R-Value Work: 0.203 
• R-Value Observed: 0.203 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 119.93	α = 90
b = 55.72	β = 115.15
c = 62.74	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-07-10 
Deposition Author(s): Allen, M.D., Buckle, A.M., Cordell, S.C., Lowe, J., Bycroft, M.

Revision History  

• Version 1.0: 2003-07-10
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-01-24
  Changes: Source and taxonomy
• Version 1.4: 2024-11-20
  Changes: Data collection, Database references, Structure summary