2PGH

STRUCTURE DETERMINATION OF AQUOMET PORCINE HEMOGLOBIN AT 2.8 ANGSTROM RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Work: 0.154 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure determination of aquomet porcine hemoglobin at 2.8 A resolution.

Katz, D.S.White, S.P.Huang, W.Kumar, R.Christianson, D.W.

(1994) J.Mol.Biol. 244: 541-553

  • DOI: 10.1006/jmbi.1994.1751

  • PubMed Abstract: 
  • Considerable attention is currently focused on hemoglobins from lower mammals, such as the pig, for potential use in cell-free blood substitute preparations safe for use in humans. As the first step in the elucidation of structure-function relationsh ...

    Considerable attention is currently focused on hemoglobins from lower mammals, such as the pig, for potential use in cell-free blood substitute preparations safe for use in humans. As the first step in the elucidation of structure-function relationships in porcine hemoglobin, we have determined the three-dimensional structure of aquomet porcine hemoglobin at 2.8 A resolution. Overall, the porcine hemoglobin tetramer is structurally similar to that of human oxyhemoglobin, and the r.m.s. deviation of all backbone atoms (minus five residues at the amino and carboxyl termini of each subunit) is 0.8 A. This similarity is not unexpected given that human and porcine hemoglobins exhibit 85% sequence identity. However, regions of subtle structural differences are implicated in subtle functional differences between the two proteins, such as the 20 to 25% inhibition of the alkaline Bohr effect and the accompanying reduction in oxygen-linked chloride binding observed for porcine hemoglobin. The structural similarity of these two mammalian hemoglobins also rationalizes the novel hybridization behavior of pig and human subunits in transgenic pigs expressing both porcine and human hemoglobins in porcine erythrocytes.


    Related Citations: 
    • The Purification and Comparative Analysis of Hemoglobin from Animal Bloods
      Lee, C.J.,Kan, P.,Chen, W.K.
      (1992) Biomater.,Artif.Cells, Immobilization Biotechnol. 20: 477
    • Production of Functional Human Hemoglobin in Transgenic Swine
      Swanson, M.E.,Martin, M.J.,O'Donnell, J.K.,Hoover, K.,Sago, W.,Huntress, V.,Parsons, C.T.,Pinkert, C.A.,Pilder, S.,Logan, J.S.
      (1992) Bio/Technology 10: 557
    • Production of Hemoglobin in Transgenic Swine: An Approach to a Blood Substitute
      O'Donnell, J.K.,Martin, M.J.,Logan, J.S.,Kumar, R.
      (1993) Cancer Detect.Prev. 17: 307


    Organizational Affiliation

    Department of Chemistry, University of Pennsylvania, Philadelphia 19104-6323.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HEMOGLOBIN (AQUO MET) (ALPHA CHAIN)
A, C
141Sus scrofaMutation(s): 0 
Gene Names: HBA
Find proteins for P01965 (Sus scrofa)
Go to UniProtKB:  P01965
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HEMOGLOBIN (AQUO MET) (BETA CHAIN)
B, D
146Sus scrofaMutation(s): 0 
Gene Names: HBB
Find proteins for P02067 (Sus scrofa)
Go to Gene View: HBB
Go to UniProtKB:  P02067
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: 2.8 Å
  • R-Value Work: 0.154 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 69.600α = 90.00
b = 72.800β = 90.00
c = 115.800γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-11-30
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance