1C7D

DEOXY RHB1.2 (RECOMBINANT HEMOGLOBIN)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.240 
  • R-Value Observed: 0.188 

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This is version 1.5 of the entry. See complete history


Literature

Genetically crosslinked hemoglobin: a structural study.

Brucker, E.A.

(2000) Acta Crystallogr D Biol Crystallogr 56: 812-816

  • DOI: https://doi.org/10.1107/s0907444900006557
  • Primary Citation of Related Structures:  
    1C7B, 1C7C, 1C7D

  • PubMed Abstract: 

    The crystal structures of three recombinant human hemoglobins, rHb1. 0, rHb1.1 and rHb1.2, have been determined in the deoxy state at 1.8 A resolution. Two of the three proteins, rHb1.1 and rHb1.2, contain a genetic fusion of the alpha subunits, a one- or two-glycine link, respectively, whereas rHb1.0 does not. The glycine crosslinks, localized between one N- and C--termini pair of the alpha subunits in the deoxy crystalline state, do not perturb the overall tertiary or quaternary or even the local structure of hemoglobin. Therefore, genetic fusion to prevent the dissociation of the hemoglobin tetramer, thereby inhibiting renal clearance based upon molecular size, is a structurally conservative method to stabilize hemoglobin for use as an oxygen-delivery therapeutic.


  • Organizational Affiliation

    Baxter Healthcare Corporation, Hemoglobin Therapeutics Division, 2545 Central Avenue, Boulder, CO 80301-2857, USA. ebrucker@baxter. com.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (DEOXYHEMOGLOBIN (ALPHA CHAIN))284Homo sapiensMutation(s): 1 
UniProt & NIH Common Fund Data Resources
Find proteins for P69905 (Homo sapiens)
Explore P69905 
Go to UniProtKB:  P69905
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP69905
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (DEOXYHEMOGLOBIN (BETA CHAIN))B,
C [auth D]
146Homo sapiensMutation(s): 2 
UniProt & NIH Common Fund Data Resources
Find proteins for P68871 (Homo sapiens)
Explore P68871 
Go to UniProtKB:  P68871
GTEx:  ENSG00000244734 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP68871
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.240 
  • R-Value Observed: 0.188 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.144α = 90
b = 83.282β = 99.07
c = 53.928γ = 90
Software Package:
Software NamePurpose
XDSdata scaling
XSCALEdata scaling
SHELXmodel building
SHELXL-97refinement
XDSdata reduction
SHELXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-06-30
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-08-09
    Changes: Refinement description, Source and taxonomy
  • Version 1.4: 2021-11-03
    Changes: Database references, Derived calculations
  • Version 1.5: 2023-08-09
    Changes: Data collection, Refinement description