1XQ5

Met-Perch Hemoglobin at 1.9A

• PDB DOI: https://doi.org/10.2210/pdb1XQ5/pdb

• Classification: OXYGEN STORAGE/TRANSPORT
• Organism(s): Perca flavescens
• Mutation(s): No 


• Deposited: 2004-10-11 Released: 2004-11-16 
• Deposition Author(s): Center for Eukaryotic Structural Genomics (CESG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.297 
• R-Value Work: 0.243 
• R-Value Observed: 0.246 

Starting Model: experimental

Literature

Met-Perch Hemoglobin at 1.9A

Center for Eukaryotic Structural Genomics (CESG)

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.

Macromolecule Content

• Total Structure Weight: 65.89 kDa 
• Atom Count: 4,865 
• Modelled Residue Count: 578 
• Deposited Residue Count: 578 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin alpha-1 chain	A, C	143	Perca flavescens	Mutation(s): 0
UniProt
Find proteins for D0VWV2 (Perca flavescens) Explore D0VWV2  Go to UniProtKB:  D0VWV2

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin beta-2 chain	B, D	146	Perca flavescens	Mutation(s): 0
UniProt
Find proteins for D0VWV3 (Perca flavescens) Explore D0VWV3  Go to UniProtKB:  D0VWV3

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	E [auth A], F [auth B], G [auth C], H [auth D]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.297 
• R-Value Work: 0.243 
• R-Value Observed: 0.246 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.302	α = 90
b = 84.986	β = 90
c = 121.779	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-11-16 
Deposition Author(s): Center for Eukaryotic Structural Genomics (CESG)

Revision History  

• Version 1.0: 2004-11-16
  Type: Initial release
  
• Version 1.1: 2008-02-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-23
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-10-16
  Changes: Structure summary