3EU1

Crystal Structure determination of goat hemoglobin (Capra hircus) at 3 angstrom resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Purification, crystallization and preliminary X-ray diffraction studies on goat (Capra hircus) hemoglobin - a low oxygen affinity species

Sathya Moorthy, P.Neelagandan, K.Balasubramanian, M.Ponnuswamy, M.N.

(2009) Protein Pept.Lett. 16: 454-456

  • Also Cited By: 3GYS, 3GQR, 3GQP, 3CY5

  • PubMed Abstract: 
  • Hemoglobin is a vital protein present in almost all higher species. It is a transport protein involved in carrying oxygen from lungs to tissues and carbon dioxide back to lungs by an intrinsically coordinated manner. Even though a good amount of work ...

    Hemoglobin is a vital protein present in almost all higher species. It is a transport protein involved in carrying oxygen from lungs to tissues and carbon dioxide back to lungs by an intrinsically coordinated manner. Even though a good amount of work has been carried out in this direction there exists scarcity of structural insight on low oxygen affinity species. Attempts are being made to unravel the structural insight of this low oxygen affinity species. Goat blood plasma was collected, treated with EDTA to avoid blood clotting and purification was accomplished using DEAE-anion chromatographic column. The goat hemoglobin was crystallized using 50mM of phosphate buffer at pH 6.7 with 1M NaCl and PEG 3350 as precipitant by hanging drop vapor diffusion method. Crystals obtained are screened and suitable crystals are taken for data collection using mar345dtb as image plate detector system. Goat hemoglobin crystal diffracted up to 2.61 A resolution. Goat hemoglobin crystallizes in orthorhombic space group P212(1)2(1) as a whole biological molecule in the asymmetric unit with cell dimensions a=53.568A, b=67.365A, c=154.183A.


    Organizational Affiliation

    Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai - 600 025, India.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hemoglobin subunit alpha-1/2
A, C
141Capra hircusMutation(s): 0 
Gene Names: HBA1
Find proteins for P0CH25 (Capra hircus)
Go to Gene View: HBA1
Go to UniProtKB:  P0CH25
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hemoglobin subunit beta-A
B, D
145Capra hircusMutation(s): 0 
Find proteins for P02077 (Capra hircus)
Go to UniProtKB:  P02077
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download SDF File 
Download CCD File 
A, B, C, D
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.213 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 53.678α = 90.00
b = 66.896β = 90.00
c = 157.593γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
AUTOMARdata reduction
PHASERphasing
MAR345data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-11-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2018-06-20
    Type: Data collection, Database references, Structure summary