3S64

Saposin-like protein Ac-SLP-1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.226 

wwPDB Validation 3D Report Full Report



Literature

Insights into the membrane interactions of the saposin-like proteins Na-SLP-1 and Ac-SLP-1 from human and dog hookworm.

Willis, C.Wang, C.K.Osman, A.Simon, A.Pickering, D.Mulvenna, J.Riboldi-Tunicliffe, A.Jones, M.K.Loukas, A.Hofmann, A.

(2011) PLoS One 6: e25369-e25369

  • DOI: 10.1371/journal.pone.0025369
  • Primary Citation of Related Structures:  
    3S63, 3S64

  • PubMed Abstract: 
  • Saposin-like proteins (SAPLIPs) from soil-transmitted helminths play pivotal roles in host-pathogen interactions and have a high potential as targets for vaccination against parasitic diseases. We have identified two non-orthologous SAPLIPs from huma ...

    Saposin-like proteins (SAPLIPs) from soil-transmitted helminths play pivotal roles in host-pathogen interactions and have a high potential as targets for vaccination against parasitic diseases. We have identified two non-orthologous SAPLIPs from human and dog hookworm, Na-SLP-1 and Ac-SLP-1, and solved their three-dimensional crystal structures. Both proteins share the property of membrane binding as monitored by liposome co-pelleting assays and monolayer adsorption. Neither SAPLIP displayed any significant haemolytic or bactericidal activity. Based on the structural information, as well as the results from monolayer adsorption, we propose models of membrane interactions for both SAPLIPs. Initial membrane contact of the monomeric Na-SLP-1 is most likely by electrostatic interactions between the membrane surface and a prominent basic surface patch. In case of the dimeric Ac-SLP-1, membrane interactions are most likely initiated by a unique tryptophan residue that has previously been implicated in membrane interactions in other SAPLIPs.


    Organizational Affiliation

    Parasite Cell Biology, Queensland Institute of Medical Research, Herston, Queensland, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Saposin-like protein 1A87Ancylostoma caninumMutation(s): 0 
Gene Names: SLP1
Find proteins for Q0MRQ4 (Ancylostoma caninum)
Explore Q0MRQ4 
Go to UniProtKB:  Q0MRQ4
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EPE
Query on EPE

Download CCD File 
A
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N
 Ligand Interaction
CIT
Query on CIT

Download CCD File 
A
CITRIC ACID
C6 H8 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.226 
  • Space Group: P 62 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.053α = 90
b = 72.053β = 90
c = 90.888γ = 120
Software Package:
Software NamePurpose
ADSCdata collection
SHARPphasing
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-01-18
    Type: Initial release