Biological Assembly 1  

 3D View: Structure | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 27.41 kDa 
• Atom Count: 1924 
• Residue Count: 234 
• Unique protein chains: 2

2KWI

RalB-RLIP76 (RalBP1) complex

• DOI: 10.2210/pdb2KWI/pdb

• Classification: TRANSPORT PROTEIN, PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2010-04-12 Released: 2010-09-01 
• Deposition Author(s): Fenwick, R.B., Campbell, L.J., Rajasekar, K., Prasannan, S., Nietlispach, D., Camonis, J., Owen, D., Mott, H.R.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 51 
• Selection Criteria: structures with the lowest energy 

Literature

The RalB-RLIP76 complex reveals a novel mode of ral-effector interaction

Fenwick, R.B., Campbell, L.J., Rajasekar, K., Prasannan, S., Nietlispach, D., Camonis, J., Owen, D., Mott, H.R.

(2010) Structure 18: 985-995

• PubMed: 20696399 
• DOI: 10.1016/j.str.2010.05.013
• Primary Citation of Related Structures:  
  2KWI, 2KWH


• PubMed Abstract: 
  

RLIP76 (RalBP1) is a multidomain protein that interacts with multiple small G protein families: Ral via a specific binding domain, and Rho and R-Ras via a GTPase activating domain. RLIP76 interacts with endocytosis proteins and has also been shown to behave as a membrane ATPase that transports chemotherapeutic agents from the cell. We have determined the structure of the Ral-binding domain of RLIP76 and show that it comprises a coiled-coil motif. The structure of the RLIP76-RalB complex reveals a novel mode of binding compared to the structures of RalA complexed with the exocyst components Sec5 and Exo84. RLIP76 interacts with both nucleotide-sensitive regions of RalB, and key residues in the interface have been identified using affinity measurements of RalB mutants. Sec5, Exo84, and RLIP76 bind Ral proteins competitively and with similar affinities in vitro.

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Organizational Affiliation: 

Department of Biochemistry, University of Cambridge, Cambridge CB2 1GA, UK.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ras-related protein Ral-B	A	178	Homo sapiens	Mutation(s): 1  Gene Names: RALB EC: 3.6.5.2
Find proteins for P11234 (Homo sapiens) Explore P11234  Go to UniProtKB:  P11234
NIH Common Fund Data Resources
PHAROS:  P11234 GTEx:  ENSG00000144118

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
RalA-binding protein 1	B	56	Homo sapiens	Mutation(s): 1  Gene Names: RALBP1, RLIP1, RLIP76
Find proteins for Q15311 (Homo sapiens) Explore Q15311  Go to UniProtKB:  Q15311
NIH Common Fund Data Resources
PHAROS:  Q15311 GTEx:  ENSG00000017797

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GNP	A	PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER C10 H17 N6 O13 P3 UQABYHGXWYXDTK-UUOKFMHZSA-N
MG	A	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 51 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 2KWI Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-04-12 
• Released Date: 2010-09-01 
Deposition Author(s): Fenwick, R.B., Campbell, L.J., Rajasekar, K., Prasannan, S., Nietlispach, D., Camonis, J., Owen, D., Mott, H.R.

Revision History 

• Version 1.0: 2010-09-01
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance