1O1I

Cyanomet hemoglobin (A-GLY-C:V1M,L29F,H58Q; B,D:V1M,L106W)

• PDB DOI: https://doi.org/10.2210/pdb1O1I/pdb

• Classification: OXYGEN STORAGE/TRANSPORT
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2002-11-19 Released: 2002-12-18 
• Deposition Author(s): Brucker, E.A.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.267 
• R-Value Observed: 0.174 

Starting Model: experimental

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: 32.49 kDa 
• Atom Count: 2,429 
• Modelled Residue Count: 287 
• Deposited Residue Count: 287 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin Alpha chain	A	141	Homo sapiens	Mutation(s): 3
UniProt & NIH Common Fund Data Resources
Find proteins for P69905 (Homo sapiens) Explore P69905  Go to UniProtKB:  P69905
PHAROS:  P69905 GTEx:  ENSG00000188536 ENSG00000206172

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin Beta chain	B	146	Homo sapiens	Mutation(s): 2
UniProt & NIH Common Fund Data Resources
Find proteins for P68871 (Homo sapiens) Explore P68871  Go to UniProtKB:  P68871
PHAROS:  P68871 GTEx:  ENSG00000244734

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	D [auth A], F [auth B]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
CYN	C [auth A], E [auth B]	CYANIDE ION C N XFXPMWWXUTWYJX-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.267 
• R-Value Observed: 0.174 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.671	α = 90
b = 56.671	β = 90
c = 185.834	γ = 90

Software Package:

Software Name	Purpose
SHELXL-97	refinement
XSCALE	data scaling
CNS	refinement
XDS	data scaling
XDS	data reduction
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-12-18 
Deposition Author(s): Brucker, E.A.

Revision History  

• Version 1.0: 2002-12-18
  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: 2019-07-24
  Changes: Data collection, Refinement description
• Version 1.4: 2021-10-27
  Changes: Database references, Derived calculations
• Version 1.5: 2023-08-16
  Changes: Data collection, Refinement description