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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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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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Ras-related protein Rab-11AA, D, G, J185Homo sapiensMutation(s): 1 
Gene Names: RAB11A, RAB11
UniProt & NIH Common Fund Data Resources
Find proteins for P62491 (Homo sapiens)
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Go to UniProtKB:  P62491
PHAROS:  P62491
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UniProt GroupP62491
Protein Feature View
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Rab-3A-interacting proteinB, E, H, K195Homo sapiensMutation(s): 0 
Gene Names: RAB3IP, RABIN8
UniProt & NIH Common Fund Data Resources
Find proteins for Q96QF0 (Homo sapiens)
Explore Q96QF0 
Go to UniProtKB:  Q96QF0
PHAROS:  Q96QF0
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UniProt GroupQ96QF0
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Rab11 family-interacting protein 3C, F, I, L66Homo sapiensMutation(s): 0 
Gene Names: RAB11FIP3, ARFO1, KIAA0665
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Find proteins for O75154 (Homo sapiens)
Explore O75154 
Go to UniProtKB:  O75154
PHAROS:  O75154
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UniProt GroupO75154
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

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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