2F7S

The crystal structure of human Rab27b bound to GDP

• PDB DOI: https://doi.org/10.2210/pdb2F7S/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2005-12-01 Released: 2005-12-20 
• Deposition Author(s): Wang, J., Ismail, S., Shen, Y., Tempel, W., Arrowsmith, C.H., Edwards, A.M., Sundstrom, M., Bochkarev, A., Park, H.W., Structural Genomics Consortium (SGC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.292 
• R-Value Work: 0.245 
• R-Value Observed: 0.248 

Starting Model: experimental

Literature

The crystal structure of human Rab27b

Wang, J., Ismail, S., Shen, Y., Tempel, W., Arrowsmith, C.H., Edwards, A.M., Sundstrom, M., Bochkarev, A., Park, H.W.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 49.94 kDa 
• Atom Count: 2,958 
• Modelled Residue Count: 355 
• Deposited Residue Count: 434 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ras-related protein Rab-27B	A, B	217	Homo sapiens	Mutation(s): 0  Gene Names: RAB27B EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for O00194 (Homo sapiens) Explore O00194  Go to UniProtKB:  O00194
PHAROS:  O00194 GTEx:  ENSG00000041353

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GDP	D [auth A], F [auth B]	GUANOSINE-5'-DIPHOSPHATE C10 H15 N5 O11 P2 QGWNDRXFNXRZMB-UUOKFMHZSA-N
MG	C [auth A], E [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.292 
• R-Value Work: 0.245 
• R-Value Observed: 0.248 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 55.469	α = 90
b = 64.023	β = 90
c = 153.32	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-12-20 
Deposition Author(s): Wang, J., Ismail, S., Shen, Y., Tempel, W., Arrowsmith, C.H., Edwards, A.M., Sundstrom, M., Bochkarev, A., Park, H.W., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2005-12-20
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-11-13
  Changes: Structure summary