5AOH | pdb_00005aoh

Crystal Structure of CarF

• PDB DOI: https://doi.org/10.2210/pdb5AOH/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Prodigiosinella confusarubida
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-09-10 Released: 2017-01-25 
• Deposition Author(s): Tichy, E.M., Hardwick, S.W., Luisi, B.F., C Salmond, G.P.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.208 (Depositor), 0.210 (DCC) 
• R-Value Work: 
  0.137 (Depositor) 
• R-Value Observed: 
  0.140 (Depositor) 

Literature

1.8 angstrom resolution crystal structure of the carbapenem intrinsic resistance protein CarF.

Tichy, E.M., Hardwick, S.W., Luisi, B.F., Salmond, G.P.C.

(2017) Acta Crystallogr D Struct Biol 73: 549-556

• PubMed: 28695855 
• DOI: https://doi.org/10.1107/S2059798317002236
• Primary Citation Related Structures: 
  5AOH


• PubMed Abstract: 
  

  The natural production of the β-lactam antibiotic carbapenem in bacteria involves a group of enzymes that form a synthetic pathway as well as proteins that protect the cell from self-intoxification by the products. Here, the crystal structure of CarF, one of the two proteins that confer resistance to synthesis of the antibiotic in the host organism, is reported. The CarF fold places it within a widely occurring structural family, indicating an ancient structural origin from which the resistance function has been derived.

---

Organizational Affiliation: 
• Department of Biochemistry, University of Cambridge, Building O, Downing Site, Cambridge CB2 1QW, England.

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: 59.97 kDa 
• Atom Count: 4,290 
• Modeled Residue Count: 526 
• Deposited Residue Count: 546 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Spore coat protein CotH	A, B	273	Prodigiosinella confusarubida	Mutation(s): 0  Gene Names: Ser39006_009945
UniProt
Find proteins for A0A2I5TIN5 (Serratia sp. (strain ATCC 39006)) Explore A0A2I5TIN5  Go to UniProtKB:  A0A2I5TIN5

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
K	C [auth A], D [auth B]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.208 (Depositor), 0.210 (DCC) 
• R-Value Work:  0.137 (Depositor) 
• R-Value Observed: 0.140 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.47	α = 90
b = 55.45	β = 90
c = 176.2	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2017-01-25 
Deposition Author(s): Tichy, E.M., Hardwick, S.W., Luisi, B.F., C Salmond, G.P.

Revision History  

• Version 1.0: 2017-01-25
  Type: Initial release
  
• Version 1.1: 2017-07-19
  Changes: Database references
• Version 1.2: 2019-09-25
  Changes: Data collection, Database references, Other, Source and taxonomy, Structure summary
• Version 1.3: 2024-10-23
  Changes: Data collection, Database references, Derived calculations, Structure summary