1IFR | pdb_00001ifr

Structure of Lamin A/C Globular Domain

• PDB DOI: https://doi.org/10.2210/pdb1IFR/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2001-04-13 Released: 2002-07-17 
• Deposition Author(s): Dhe-Paganon, S., Werner, E.D., Shoelson, S.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Work: 
  0.216 (Depositor) 

Literature

Structure of the globular tail of nuclear lamin.

Dhe-Paganon, S., Werner, E.D., Chi, Y.I., Shoelson, S.E.

(2002) J Biological Chem 277: 17381-17384

• PubMed: 11901143 
• DOI: https://doi.org/10.1074/jbc.C200038200
• Primary Citation Related Structures: 
  1IFR


• PubMed Abstract: 
  

  The nuclear lamins form a two-dimensional matrix that provides integrity to the cell nucleus and participates in nuclear activities. Mutations in the region of human LMNA encoding the carboxyl-terminal tail Lamin A/C are associated with forms of muscular dystrophy and familial partial lipodystrophy (FPLD). To help discriminate tissue-specific phenotypes, we have solved at 1.4-A resolution the three-dimensional crystal structure of the lamin A/C globular tail. The domain adopts a novel, all beta immunoglobulin-like fold. FPLD-associated mutations cluster within a small surface, whereas muscular dystrophy-associated mutations are distributed throughout the protein core and on its surface. These findings distinguish myopathy- and lipodystrophy-associated mutations and provide a structural framework for further testing hypotheses concerning lamin function.

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Organizational Affiliation: 
• Joslin Diabetes Center & Department of Medicine, Harvard Medical School, Boston, Massachusetts 02215, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 13.48 kDa 
• Atom Count: 990 
• Modeled Residue Count: 113 
• Deposited Residue Count: 121 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Lamin A/C	A	121	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P02545 (Homo sapiens) Explore P02545  Go to UniProtKB:  P02545
PHAROS:  P02545 GTEx:  ENSG00000160789

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	B [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Work:  0.216 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 26.43	α = 90
b = 52.55	β = 90
c = 67.44	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-07-17 
Deposition Author(s): Dhe-Paganon, S., Werner, E.D., Shoelson, S.E.

Revision History  

• Version 1.0: 2002-07-17
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references, Derived calculations