2B7H | pdb_00002b7h

Hemoglobin from Cerdocyon thous, a canidae from Brazil, at 2.2 Angstroms resolution

• PDB DOI: https://doi.org/10.2210/pdb2B7H/pdb

• Classification: OXYGEN STORAGE/TRANSPORT
• Organism(s): Cerdocyon thous
• Mutation(s): No 


• Deposited: 2005-10-04 Released: 2006-09-12 
• Deposition Author(s): Esteves, G.F., Silva, V.C., Bloch Jr., C., Medrano, F.J., Barbosa, J.A.R.G., Freitas, S.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 
  0.233 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.165 (Depositor), 0.170 (DCC) 
• R-Value Observed: 
  0.169 (Depositor) 

Starting Model: experimental

Literature

Crystal structure and biophysical characterization of the Cerdocyon thous, a Canidae from Brazil.

Esteves, G.F., Silva, V.C., Bloch Jr., C., Medrano, F.J., Barbosa, J.A.R.G., Freitas, S.M.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Dihedral - D2  (Explore in 3D)
Pseudo Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 65.3 kDa 
• Atom Count: 5,037 
• Modeled Residue Count: 571 
• Deposited Residue Count: 574 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
hemoglobin alpha chain	A, C	141	Cerdocyon thous	Mutation(s): 0
UniProt
Find proteins for P60523 (Chrysocyon brachyurus) Explore P60523  Go to UniProtKB:  P60523

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
hemoglobin beta chain	B, D	146	Cerdocyon thous	Mutation(s): 0
UniProt
Find proteins for P60526 (Chrysocyon brachyurus) Explore P60526  Go to UniProtKB:  P60526

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	F [auth A], G [auth B], I [auth C], J [auth D]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
SO4	E [auth A], H [auth C]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free:  0.233 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.165 (Depositor), 0.170 (DCC) 
• R-Value Observed: 0.169 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.731	α = 90
b = 84.237	β = 90
c = 130.285	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-09-12 
Deposition Author(s): Esteves, G.F., Silva, V.C., Bloch Jr., C., Medrano, F.J., Barbosa, J.A.R.G., Freitas, S.M.

Revision History  

• Version 1.0: 2006-09-12
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.3: 2023-08-23
  Changes: Data collection, Database references, Derived calculations, Refinement description