1LCI

FIREFLY LUCIFERASE

• PDB DOI: https://doi.org/10.2210/pdb1LCI/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Photinus pyralis
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1996-06-01 Released: 1997-03-26 
• Deposition Author(s): Conti, E., Franks, N.P., Brick, P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.265 
• R-Value Work: 0.224 
• R-Value Observed: 0.224 

Literature

Crystal structure of firefly luciferase throws light on a superfamily of adenylate-forming enzymes.

Conti, E., Franks, N.P., Brick, P.

(1996) Structure 4: 287-298

• PubMed: 8805533 
• DOI: https://doi.org/10.1016/s0969-2126(96)00033-0
• Primary Citation of Related Structures:  
  1LCI


• PubMed Abstract: 
  

  Firefly luciferase is a 62 kDa protein that catalyzes the production of light. In the presence of MgATP and molecular oxygen, the enzyme oxidizes its substrate, firefly luciferin, emitting yellow-green light. The reaction proceeds through activation of the substrate to form an adenylate intermediate. Firefly luciferase shows extensive sequence homology with a number of enzymes that utilize ATP in adenylation reactions.

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Organizational Affiliation: 

Biophysics Section, Blackett Laboratory, Imperial College, London SW7 2BZ, UK.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 60.82 kDa 
• Atom Count: 4,332 
• Modelled Residue Count: 523 
• Deposited Residue Count: 550 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
LUCIFERASE	A	550	Photinus pyralis	Mutation(s): 0  EC: 1.13.12.7
UniProt
Find proteins for P08659 (Photinus pyralis) Explore P08659  Go to UniProtKB:  P08659

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.265 
• R-Value Work: 0.224 
• R-Value Observed: 0.224 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 119.53	α = 90
b = 119.53	β = 90
c = 94.68	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
MOSFLM	data reduction
CCP4	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-03-26 
Deposition Author(s): Conti, E., Franks, N.P., Brick, P.

Revision History  

• Version 1.0: 1997-03-26
  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: 2024-02-14
  Changes: Data collection, Database references, Other