6O1W

Structure of pCW3 conjugation coupling protein TcpA monomer orthorhombic crystal form

• PDB DOI: https://doi.org/10.2210/pdb6O1W/pdb

• Classification: TRANSLOCASE
• Organism(s): Clostridium perfringens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-02-22 Released: 2020-02-26 
• Deposition Author(s): Traore, D.A.K., Ahktar, N., Torres, V.T., Adams, V., Coulibaly, F., Panjikar, S., Caradoc-Davies, T.T., Rood, J.I., Whisstock, J.C.
• Funding Organization(s): National Health and Medical Research Council (NHMRC, Australia)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.230 
• R-Value Work: 0.179 
• R-Value Observed: 0.182 

Literature

Structure of pCW3 conjugation coupling protein TcpA

Traore, D.A.K., Whisstock, J.C.

To be published.

Biological Assembly 1  

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

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

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 81.89 kDa 
• Atom Count: 5,942 
• Modelled Residue Count: 702 
• Deposited Residue Count: 716 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA translocase coupling protein	A, B	358	Clostridium perfringens	Mutation(s): 0  Gene Names: tcpA, pCW3_0030
UniProt
Find proteins for Q1PLI0 (Clostridium perfringens) Explore Q1PLI0  Go to UniProtKB:  Q1PLI0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BGC	C [auth A], D [auth A], E [auth A], F [auth B], G [auth B]	beta-D-glucopyranose C6 H12 O6 WQZGKKKJIJFFOK-VFUOTHLCSA-N

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.230 
• R-Value Work: 0.179 
• R-Value Observed: 0.182 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 53.17	α = 90
b = 101.83	β = 90
c = 140.04	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
Aimless	data scaling
SHELX	phasing
PDB_EXTRACT	data extraction
XDS	data reduction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2020-02-26 
Deposition Author(s): Traore, D.A.K., Ahktar, N., Torres, V.T., Adams, V., Coulibaly, F., Panjikar, S., Caradoc-Davies, T.T., Rood, J.I., Whisstock, J.C.

---

Funding Organization	Location	Grant Number
National Health and Medical Research Council (NHMRC, Australia)	Australia	GNT1104502

Revision History  

• Version 1.0: 2020-02-26
  Type: Initial release
  
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary