2NPN | pdb_00002npn

Crystal structure of putative cobalamin synthesis related protein (CobF) from Corynebacterium diphtheriae

• PDB DOI: https://doi.org/10.2210/pdb2NPN/pdb

• Classification: TRANSFERASE
• Organism(s): Corynebacterium diphtheriae
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2006-10-27 Released: 2006-11-28 
• Deposition Author(s): Nocek, B., Zhou, M., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 
  0.198 (Depositor), 0.210 (DCC) 
• R-Value Work: 
  0.172 (Depositor), 0.180 (DCC) 
• R-Value Observed: 
  0.173 (Depositor) 

Literature

Crystal structure of cobalamin synthesis related protein (CobF) from Corynebacterium diphtheriae

Nocek, B., Zhou, M., Clancy, S., Joachimiak, A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 generated by PISA,PQS (software)

Biological Assembly 3  

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

Biological assembly 3 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 29.1 kDa 
• Atom Count: 2,234 
• Modeled Residue Count: 238 
• Deposited Residue Count: 251 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative cobalamin synthesis related protein	A	251	Corynebacterium diphtheriae	Mutation(s): 5
UniProt
Find proteins for Q6NIF5 (Corynebacterium diphtheriae (strain ATCC 700971 / NCTC 13129 / Biotype gravis)) Explore Q6NIF5  Go to UniProtKB:  Q6NIF5

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SAM	C [auth A]	S-ADENOSYLMETHIONINE C15 H22 N6 O5 S MEFKEPWMEQBLKI-FCKMPRQPSA-N
GOL	D [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
MG	B [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free:  0.198 (Depositor), 0.210 (DCC) 
• R-Value Work:  0.172 (Depositor), 0.180 (DCC) 
• R-Value Observed: 0.173 (Depositor) 

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 77.104	α = 90
b = 80.845	β = 90
c = 76.976	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing
SHELXD	phasing
SHELXE	model building
MLPHARE	phasing
DM	phasing
SOLVE	phasing
RESOLVE	phasing
ARP/wARP	model building
CCP4	phasing
O	model building
Coot	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-11-28 
Deposition Author(s): Nocek, B., Zhou, M., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2006-11-28
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Derived calculations, Version format compliance
• Version 1.3: 2023-12-27
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2024-10-16
  Changes: Structure summary