1LTW

RECOMBINANT SPERM WHALE MYOGLOBIN 29W MUTANT (OXY)

• PDB DOI: https://doi.org/10.2210/pdb1LTW/pdb

• Classification: OXYGEN TRANSPORT
• Organism(s): Physeter catodon
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 1996-11-02 Released: 1996-12-23 
• Deposition Author(s): Li, T., Olson, J.S., Phillips Jr., G.N.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Work: 0.158 
• R-Value Observed: 0.158 

Literature

Perturbation of the Fe-O2 Bond by Nearby Residues in Heme Pocket: Observation of Vfe-O2 Raman Bands for Oxymyoglobin Mutants

Hirota, S., Li, T., Phillips Jr., G.N., Olson, J.S., Mukai, M., Kitagawa, T.

(1996) J Am Chem Soc 118: 7845

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 18.18 kDa 
• Atom Count: 1,413 
• Modelled Residue Count: 154 
• Deposited Residue Count: 154 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MYOGLOBIN	A	154	Physeter catodon	Mutation(s): 2
UniProt
Find proteins for P02185 (Physeter macrocephalus) Explore P02185  Go to UniProtKB:  P02185

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	C [auth A]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
SO4	B [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
OXY	D [auth A]	OXYGEN MOLECULE O2 MYMOFIZGZYHOMD-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Work: 0.158 
• R-Value Observed: 0.158 
• Space Group: P 6

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 91.461	α = 90
b = 91.461	β = 90
c = 45.841	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
RIGAKU	data reduction
RIGAKU	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-12-23 
Deposition Author(s): Li, T., Olson, J.S., Phillips Jr., G.N.

Revision History  

• Version 1.0: 1996-12-23
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-03-28
  Changes: Data collection, Experimental preparation, Other
• Version 1.4: 2021-11-03
  Changes: Database references, Derived calculations
• Version 1.5: 2024-02-14
  Changes: Data collection