1OUU

CARBONMONOXY TROUT HEMOGLOBIN I


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.162 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The crystal structures of trout Hb I in the deoxy and carbonmonoxy forms.

Tame, J.R.Wilson, J.C.Weber, R.E.

(1996) J.Mol.Biol. 259: 749-760

  • DOI: 10.1006/jmbi.1996.0355
  • Primary Citation of Related Structures:  1OUT

  • PubMed Abstract: 
  • We have determined the X-ray crystallographic structure of trout Hb I in both the deoxy and carbonmonoxy forms to resolution limits of 2.3 angstroms and 2.5 angstroms, respectively. The overall fold of the molecule is highly similar to that of human ...

    We have determined the X-ray crystallographic structure of trout Hb I in both the deoxy and carbonmonoxy forms to resolution limits of 2.3 angstroms and 2.5 angstroms, respectively. The overall fold of the molecule is highly similar to that of human HbA despite the low level of sequence identity between these proteins. Trout Hb I is unusual in displaying almost no pH dependence of oxygen binding affinity, and (at most) very weak interactions with heterotropic effector ligands such as organic phosphates. Comparison of the two quaternary states of the protein indicates how such effects are minimised and how the low-affinity T state of the protein is stabilised in the absence of heterotropic interactions.


    Organizational Affiliation

    Department of Chemistry, University of York, Helsington, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HEMOGLOBIN I
A, C
143Oncorhynchus mykissGene Names: hba1
Find proteins for P02019 (Oncorhynchus mykiss)
Go to UniProtKB:  P02019
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HEMOGLOBIN I
B, D
146Oncorhynchus mykissGene Names: hbb1
Find proteins for P02142 (Oncorhynchus mykiss)
Go to UniProtKB:  P02142
Small Molecules
Ligands 2 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
CMO
Query on CMO

Download SDF File 
Download CCD File 
A, B, C, D
CARBON MONOXIDE
C O
UGFAIRIUMAVXCW-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
ACE
Query on ACE
A, C
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.162 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 65.200α = 90.00
b = 79.800β = 90.00
c = 122.900γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1996-06-21 
  • Released Date: 1997-01-11 
  • Deposition Author(s): Tame, J., Wilson, J.

Revision History 

  • Version 1.0: 1997-01-11
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance