1LL1

HYDROXO BRIDGE MET FORM HEMOCYANIN FROM LIMULUS

• PDB DOI: https://doi.org/10.2210/pdb1LL1/pdb

• Classification: OXYGEN TRANSPORT
• Organism(s): Limulus polyphemus
• Mutation(s): No 


• Deposited: 1997-03-17 Released: 1997-08-20 
• Deposition Author(s): Liu, S., Magnus, K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 0.230 
• R-Value Work: 0.167 
• R-Value Observed: 0.167 

Starting Model: experimental

Literature

Crystallographic Studies of Hydroxo, Nitrosyl, Azido and Fluro met Form Hemocyanin Subunit II from Limulus

Liu, S., Ton-that, H., Magnus, K.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 72.91 kDa 
• Atom Count: 4,903 
• Modelled Residue Count: 590 
• Deposited Residue Count: 628 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
METCYANIN II	A	628	Limulus polyphemus	Mutation(s): 0
UniProt
Find proteins for P04253 (Limulus polyphemus) Explore P04253  Go to UniProtKB:  P04253

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CU	B [auth A], C [auth A]	COPPER (II) ION Cu JPVYNHNXODAKFH-UHFFFAOYSA-N
CL	D [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 0.230 
• R-Value Work: 0.167 
• R-Value Observed: 0.167 
• Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 116.61	α = 90
b = 116.61	β = 90
c = 285.61	γ = 120

Software Package:

Software Name	Purpose
UCSD	data collection
SCALA	data scaling
X-PLOR	model building
X-PLOR	refinement
UCSD	data reduction
CCP4	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-08-20 
Deposition Author(s): Liu, S., Magnus, K.

Revision History  

• Version 1.0: 1997-08-20
  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: 2023-08-09
  Changes: Database references, Derived calculations, Refinement description
• Version 1.4: 2024-11-20
  Changes: Data collection, Structure summary