4UJ4

Crystal structure of human Rab11-Rabin8-FIP3

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.20 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.252 
  • R-Value Observed: 0.253 

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This is version 1.3 of the entry. See complete history. 


Literature

Structure of Rab11-FIP3-Rabin8 reveals simultaneous binding of FIP3 and Rabin8 effectors to Rab11.

Vetter, M., Stehle, R., Basquin, C., Lorentzen, E.

(2015) Nat Struct Mol Biol 22: 695-702

  • DOI: 10.1038/nsmb.3065
  • Primary Citation of Related Structures:  
    4UJ3, 4UJ4, 4UJ5

  • PubMed Abstract: 

    • The small GTPase Rab11 and its effectors FIP3 and Rabin8 are essential to membrane-trafficking pathways required for cytokinesis and ciliogenesis. Although effector binding is generally assumed to be sequential and mutually exclusive, we show that Rab11 can simultaneously bind FIP3 and Rabin8 ...

    The small GTPase Rab11 and its effectors FIP3 and Rabin8 are essential to membrane-trafficking pathways required for cytokinesis and ciliogenesis. Although effector binding is generally assumed to be sequential and mutually exclusive, we show that Rab11 can simultaneously bind FIP3 and Rabin8. We determined crystal structures of human Rab11-GMPPNP-Rabin8 and Rab11-GMPPNP-FIP3-Rabin8. The structures reveal that the C-terminal domain of Rabin8 adopts a previously undescribed fold that interacts with Rab11 at an unusual effector-binding site neighboring the canonical FIP3-binding site. We show that Rab11-GMPPNP-FIP3-Rabin8 is more stable than Rab11-GMPPNP-Rabin8, owing to direct interaction between Rabin8 and FIP3 within the dual effector-bound complex. The data allow us to propose a model for how membrane-targeting complexes assemble at the trans-Golgi network and recycling endosomes, through multiple weak interactions that create high-avidity complexes.

    Organizational Affiliation: 

    Department of Structural Cell Biology, Max Planck Institute of Biochemistry, Martinsried, Germany.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Ras-related protein Rab-11A A, D, G, J185Homo sapiensMutation(s): 1 
Gene Names: RAB11A, RAB11
Find proteins for P62491 (Homo sapiens)
Explore P62491 
Go to UniProtKB:  P62491
NIH Common Fund Data Resources
PHAROS:  P62491
GTEx:  ENSG00000103769
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Rab-3A-interacting protein B, E, H, K195Homo sapiensMutation(s): 0 
Gene Names: RAB3IP, RABIN8
Find proteins for Q96QF0 (Homo sapiens)
Explore Q96QF0 
Go to UniProtKB:  Q96QF0
NIH Common Fund Data Resources
PHAROS:  Q96QF0
GTEx:  ENSG00000127328
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Rab11 family-interacting protein 3 C, F, I, L66Homo sapiensMutation(s): 0 
Gene Names: RAB11FIP3, ARFO1, KIAA0665
Find proteins for O75154 (Homo sapiens)
Explore O75154 
Go to UniProtKB:  O75154
NIH Common Fund Data Resources
PHAROS:  O75154
GTEx:  ENSG00000090565
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.20 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.252 
  • R-Value Observed: 0.253 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.12α = 90
b = 161.701β = 90
c = 192.762γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-08-12
    Type: Initial release
  • Version 1.1: 2015-08-19
    Changes: Database references
  • Version 1.2: 2015-09-16
    Changes: Database references
  • Version 1.3: 2018-06-06
    Changes: Data collection, Database references, Source and taxonomy, Structure summary