2RI4 | pdb_00002ri4

Crystal Structure determination of Goat Methemoglobin at 2.7 Angstrom

• PDB DOI: https://doi.org/10.2210/pdb2RI4/pdb

• Classification: Oxygen storage, Oxygen transport
• Organism(s): Capra hircus
• Mutation(s): No 


• Deposited: 2007-10-10 Released: 2008-10-14 
• Deposition Author(s): Sathya Moorthy, P., Neelagandan, K., Balasubramanian, M., Ponnuswamy, M.N.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 
  0.308 (Depositor), 0.300 (DCC) 
• R-Value Work: 
  0.225 (Depositor), 0.220 (DCC) 
• R-Value Observed: 
  0.234 (Depositor) 

Starting Model: experimental

Literature

Crystal Structure determination of Goat Methemoglobin at 2.7 Angstrom

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

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.

Biological Assembly 2  

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 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 129.34 kDa 
• Atom Count: 8,995 
• Modeled Residue Count: 1,127 
• Deposited Residue Count: 1,144 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit alpha-1/2	A, C, E [auth I], G [auth K]	141	Capra hircus	Mutation(s): 0
UniProt
Find proteins for P0CH25 (Capra hircus) Explore P0CH25  Go to UniProtKB:  P0CH25

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit beta-A	B, D, F [auth J], H [auth L]	145	Capra hircus	Mutation(s): 0
UniProt
Find proteins for P02077 (Capra hircus) Explore P02077  Go to UniProtKB:  P02077

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	I [auth A], J [auth B], K [auth C], L [auth D], M [auth I], N [auth J], O [auth K], P [auth L]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free:  0.308 (Depositor), 0.300 (DCC) 
• R-Value Work:  0.225 (Depositor), 0.220 (DCC) 
• R-Value Observed: 0.234 (Depositor) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.692	α = 110.64
b = 68.325	β = 91.9
c = 95.597	γ = 108.94

Software Package:

Software Name	Purpose
REFMAC	refinement
MAR345dtb	data collection
AUTOMAR	data reduction
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-10-14 
Deposition Author(s): Sathya Moorthy, P., Neelagandan, K., Balasubramanian, M., Ponnuswamy, M.N.

Revision History  

• Version 1.0: 2008-10-14
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2016-12-21
  Changes: Other
• Version 1.3: 2020-01-15
  Changes: Derived calculations
• Version 1.4: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description