2K2V

Anabaena CcbP in the calcium-bound form

• PDB DOI: https://doi.org/10.2210/pdb2K2V/pdb

• Classification: CALCIUM-BINDING PROTEIN
• Organism(s): Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-04-13 Released: 2009-04-21 
• Deposition Author(s): Hu, Y., Zhang, X., Jin, C.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Anabaena CcbP in the calcium-bound form

Hu, Y., Zhang, X., Xia, B., Jin, C.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 14.85 kDa 
• Atom Count: 1,038 
• Modelled Residue Count: 126 
• Deposited Residue Count: 126 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Alr1010 protein	A	126	N/A	Mutation(s): 0  Gene Names: ccbP, alr1010
UniProt
Find proteins for Q8YY42 (Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)) Explore Q8YY42  Go to UniProtKB:  Q8YY42

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	B [auth A], C [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-04-21 
Deposition Author(s): Hu, Y., Zhang, X., Jin, C.

Revision History  

• Version 1.0: 2009-04-21
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2022-03-16
  Changes: Data collection, Database references, Derived calculations
• Version 1.3: 2024-05-29
  Changes: Data collection