Macromolecule Content

• Total Structure Weight: 8416.20 
• Atom Count: 586 
• Residue Count: 73 
• Unique protein chains: 1

1CMG

NMR SOLUTION STRUCTURE OF CALCIUM-LOADED CALMODULIN CARBOXY-TERMINAL DOMAIN

• DOI: 10.2210/pdb1CMG/pdb

• Classification: CALCIUM-BINDING PROTEIN
• Organism(s): Bos taurus
• Expression System: Escherichia coli


• Deposited: 1995-07-19 Released: 1995-12-07 
• Deposition Author(s): Evenas, J., Finn, B.E., Drakenberg, T., Waltho, J.P., Thulin, E., Forsen, S.

---

Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Submitted: 20 

Literature

Calcium-induced structural changes and domain autonomy in calmodulin.

Finn, B.E., Evenas, J., Drakenberg, T., Waltho, J.P., Thulin, E., Forsen, S.

(1995) Nat.Struct.Mol.Biol. 2: 777-783

• PubMed: 7552749 
• Primary Citation of Related Structures:  
  1CMF


• PubMed Abstract: 
  

We have determined the solution structures of the apo and (Ca2+)2 forms of the carboxy-terminal domain of calmodulin using multidimensional heteronuclear nuclear magnetic resonance spectroscopy. The results show that both forms adopt well-defined structures with essentially equal secondary structure. A comparison of the structures of the two forms shows that Ca2+ binding causes major rearrangements of the secondary structure elements with changes in inter-residue distances of up to 15 A and exposure of the hydrophobic interior of the four-helix bundle. Comparisons with previously determined high-resolution X-ray structures and models of calmodulin indicate that this domain is structurally autonomous.

---

Related Citations: 

• The Structure of Apo-Calmodulin: A 1H NMR Examination of Carboxy-Terminal Domain
  Finn, B.E.,Drakenberg, T.,Forsen, S.
  (1993) FEBS Lett. 336: 368




---

Organizational Affiliation: 

Department of Physical Chemistry, Lund University, Sweden.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
CALMODULIN (VERTEBRATE)	A	73	Bos taurus	Mutation(s): 0  Gene Names: CALM (CAM)
Find proteins for P62157 (Bos taurus) Go to UniProtKB:  P62157

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Submitted: 20 
• Olderado: 1CMG Olderado

Software Package:

Software Name	Purpose
X-PLOR	refinement
X-PLOR	model building
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1995-07-19 
• Released Date: 1995-12-07 
• Deposition Author(s): Evenas, J., Finn, B.E., Drakenberg, T., Waltho, J.P., Thulin, E., Forsen, S.

Revision History 

• Version 1.0: 1995-12-07
  Type: Initial release
• Version 1.1: 2008-03-03
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance