4D60

Structure of a dimeric Plasmodium falciparum profilin mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.240 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Two Independently Folding Units of Plasmodium Profilin Suggest Evolution Via Gene Fusion.

Bhargav, S.P.Vahokoski, J.Kallio, J.P.Torda, A.E.Kursula, P.Kursula, I.

(2015) Cell.Mol.Life Sci. 72: 4193

  • DOI: 10.1007/s00018-015-1932-0

  • PubMed Abstract: 
  • Gene fusion is a common mechanism of protein evolution that has mainly been discussed in the context of multidomain or symmetric proteins. Less is known about fusion of ancestral genes to produce small single-domain proteins. Here, we show with a dom ...

    Gene fusion is a common mechanism of protein evolution that has mainly been discussed in the context of multidomain or symmetric proteins. Less is known about fusion of ancestral genes to produce small single-domain proteins. Here, we show with a domain-swapped mutant Plasmodium profilin that this small, globular, apparently single-domain protein consists of two foldons. The separation of binding sites for different protein ligands in the two halves suggests evolution via an ancient gene fusion event, analogous to the formation of multidomain proteins. Finally, the two fragments can be assembled together after expression as two separate gene products. The possibility to engineer both domain-swapped dimers and half-profilins that can be assembled back to a full profilin provides perspectives for engineering of novel protein folds, e.g., with different scaffolding functions.


    Organizational Affiliation

    Faculty of Biochemistry and Molecular Medicine, University of Oulu, P.O. Box 5400, 90014, Oulu, Finland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROFILIN
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P
169Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Gene Names: Pfn
Find proteins for Q8I2J4 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8I2J4
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, C, K, L, N
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.240 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 84.070α = 90.00
b = 246.460β = 90.00
c = 256.740γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
XDSdata reduction
XSCALEdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-06-03
    Type: Initial release
  • Version 1.1: 2015-06-10
    Type: Data collection, Database references
  • Version 1.2: 2015-10-28
    Type: Database references
  • Version 1.3: 2018-03-07
    Type: Data collection, Source and taxonomy