4INC

Human Histidine Triad Nucleotide Binding Protein 2

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.19 Å
  • R-Value Free: 0.178 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.161 

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This is version 1.1 of the entry. See complete history. 


Literature

Structural characterization of human histidine triad nucleotide-binding protein 2, a member of the histidine triad superfamily.

Maize, K.M., Wagner, C.R., Finzel, B.C.

(2013) FEBS J 280: 3389-3398

  • DOI: 10.1111/febs.12330
  • Primary Citation of Related Structures:  
    4INI, 4INC

  • PubMed Abstract: 

    • The histidine triad proteins (HITs) constitute a large and ubiquitous superfamily of nucleotide hydrolases. The human histidine triad nucleotide-binding proteins (hHints) are a distinct class of HITs noted for their acyl-AMP hydrolase and phosphoramidase activity ...

    The histidine triad proteins (HITs) constitute a large and ubiquitous superfamily of nucleotide hydrolases. The human histidine triad nucleotide-binding proteins (hHints) are a distinct class of HITs noted for their acyl-AMP hydrolase and phosphoramidase activity. The first high-resolution crystal structures of hHint2 with and without bound AMP are described. The differences between hHint2 and previously known HIT family protein structures are discussed. HIT family enzymes have historically been divided into five classes based on their catalytic specificity: Hint, fragile HIT protein, galactose-1-phosphate uridylyltransferase, DcpS and aprataxin. However, although several structures exist for the enzymes in these classes, the endogenous substrates of many of these enzymes have not been identified or biochemically characterized. To better understand the structural relationships of the HIT enzymes, a structure-based phylogeny was constructed that resulted in the identification of several new putative HIT clades with potential acyl-AMP hydrolase and phosphoramidase activity.

    Organizational Affiliation: 

    Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN, USA.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Histidine triad nucleotide-binding protein 2, mitochondrialA, B130Homo sapiensMutation(s): 0 
Gene Names: HINT2
EC: 3
Find proteins for Q9BX68 (Homo sapiens)
Explore Q9BX68 
Go to UniProtKB:  Q9BX68
NIH Common Fund Data Resources
PHAROS  Q9BX68
GTEx  ENSG00000137133
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL
Download Ideal Coordinates CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.19 Å
  • R-Value Free: 0.178 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.161 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.826α = 90
b = 74.952β = 90
c = 77.796γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
JDirectordata collection
XSCALEdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-05-22
    Type: Initial release
  • Version 1.1: 2013-07-17
    Changes: Database references