1LT1 | pdb_00001lt1

SLIDING HELIX INDUCED CHANGE OF COORDINATION GEOMETRY IN A MODEL DI-MN(II) PROTEIN

• PDB DOI: https://doi.org/10.2210/pdb1LT1/pdb

• Classification: DE NOVO PROTEIN
• Mutation(s): No 


• Deposited: 2002-05-20 Released: 2003-05-20 
• Deposition Author(s): Di Costanzo, L., Geremia, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.91 Å
• R-Value Free: 
  0.245 (Depositor) 
• R-Value Work: 
  0.201 (Depositor) 
• R-Value Observed: 
  0.204 (Depositor) 

Starting Model: experimental

Literature

Sliding helix and change of coordination geometry in a model di-MnII protein

Degrado, W.F., Di Costanzo, L., Geremia, S., Lombardi, A., Pavone, V., Randaccio, L.

(2003) Angew Chem Int Ed Engl 42: 417-420

• PubMed: 12569505 
• DOI: https://doi.org/10.1002/anie.200390127
• Primary Citation of Related Structures:  
  1LT1

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Organizational Affiliation: 

Department of Biochemistry and Biophysics, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104-6059, USA.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 3 assigned by authors and generated by PISA (software)

Biological Assembly 4  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 4 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 47.18 kDa 
• Atom Count: 3,598 
• Modelled Residue Count: 400 
• Deposited Residue Count: 400 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
L13G-DF1	A, B, C, D, E, F, G, H	50	N/A	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MN	I [auth A], J [auth A], K [auth B], L [auth B], M [auth C], N [auth C], O [auth D], P [auth D], Q [auth E], R [auth F], S [auth G], T [auth H]	MANGANESE (II) ION Mn WAEMQWOKJMHJLA-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.91 Å
• R-Value Free:  0.245 (Depositor) 
• R-Value Work:  0.201 (Depositor) 
• R-Value Observed: 0.204 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 38.225	α = 90
b = 89.27	β = 90
c = 146.288	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing
REFMAC	refinement
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-05-20 
Deposition Author(s): Di Costanzo, L., Geremia, S.

Revision History  

• Version 1.0: 2003-05-20
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-11-20
  Changes: Structure summary