3SSS

CcmK1 with residues 103-113 deleted

• PDB DOI: https://doi.org/10.2210/pdb3SSS/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Thermosynechococcus vestitus BP-1
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-07-08 Released: 2012-07-11 
• Deposition Author(s): Kimber, M.S., Samborska, B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.211 
• R-Value Work: 0.163 
• R-Value Observed: 0.165 

Starting Model: experimental

Literature

A CcmK2 double layer is the dominant architectural feature of the beta-carboxysomal shell facet

Samborska, B., Kimber, M.S.

(2012) Structure 

Biological Assembly 1  

Global Symmetry: Cyclic - C6  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

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

Macromolecule Content

• Total Structure Weight: 72.06 kDa 
• Atom Count: 4,942 
• Modelled Residue Count: 623 
• Deposited Residue Count: 660 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbon dioxide concentrating mechanism protein	A, B, C, D, E, F	110	Thermosynechococcus vestitus BP-1	Mutation(s): 0  Gene Names: ccmK1, tll0946
UniProt
Find proteins for Q8DKB3 (Thermosynechococcus vestitus (strain NIES-2133 / IAM M-273 / BP-1)) Explore Q8DKB3  Go to UniProtKB:  Q8DKB3

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	G [auth D]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.211 
• R-Value Work: 0.163 
• R-Value Observed: 0.165 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.4	α = 90
b = 78.6	β = 90
c = 110.8	γ = 90

Software Package:

Software Name	Purpose
MxDC	data collection
PHASER	phasing
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-07-11 
Deposition Author(s): Kimber, M.S., Samborska, B.

Revision History  

• Version 1.0: 2012-07-11
  Type: Initial release
  
• Version 1.1: 2017-11-08
  Changes: Refinement description
• Version 1.2: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description