1OJ6

Human brain neuroglobin three-dimensional structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.178 

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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Human Brain Neuroglobin Structure Reveals a Distinct Mode of Controlling Oxygen Affinity

Pesce, A.Dewilde, S.Nardini, M.Moens, L.Ascenzi, P.Hankeln, T.Burmester, T.Bolognesi, M.

(2003) Structure 11: 1087

  • DOI: https://doi.org/10.1016/s0969-2126(03)00166-7
  • Primary Citation of Related Structures:  
    1OJ6

  • PubMed Abstract: 

    Neuroglobin, mainly expressed in vertebrate brain and retina, is a recently identified member of the globin superfamily. Augmenting O(2) supply, neuroglobin promotes survival of neurons upon hypoxic injury, potentially limiting brain damage. In the absence of exogenous ligands, neuroglobin displays a hexacoordinated heme. O(2) and CO bind to the heme iron, displacing the endogenous HisE7 heme distal ligand. Hexacoordinated human neuroglobin displays a classical globin fold adapted to host the reversible bis-histidyl heme complex and an elongated protein matrix cavity, held to facilitate O(2) diffusion to the heme. The neuroglobin structure suggests that the classical globin fold is endowed with striking adaptability, indicating that hemoglobin and myoglobin are just two examples within a wide and functionally diversified protein homology superfamily.


  • Organizational Affiliation

    Department of Physics-INFM and Centre for Excellence in Biomedical Research, University of Genova, Via Dodecaneso 33, I-16146 Genova, Italy.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Neuroglobin
A, B, C, D
151Homo sapiensMutation(s): 3 
Gene Names: NGB
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NPG2 (Homo sapiens)
Explore Q9NPG2 
Go to UniProtKB:  Q9NPG2
PHAROS:  Q9NPG2
GTEx:  ENSG00000165553 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NPG2
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download Ideal Coordinates CCD File 
E [auth A],
F [auth B],
K [auth C],
O [auth D]
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
SO4
Query on SO4

Download Ideal Coordinates CCD File 
G [auth B]
H [auth B]
I [auth B]
J [auth B]
L [auth C]
G [auth B],
H [auth B],
I [auth B],
J [auth B],
L [auth C],
M [auth C],
N [auth C]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.178 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.598α = 90
b = 94.927β = 94.38
c = 67.563γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-09-11
    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: 2018-12-12
    Changes: Advisory, Data collection, Database references, Source and taxonomy, Structure summary