2GAO

Crystal Structure of Human SAR1a in Complex With GDP

• PDB DOI: https://doi.org/10.2210/pdb2GAO/pdb

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


• Deposited: 2006-03-09 Released: 2006-03-21 
• Deposition Author(s): Wang, J., Dimov, S., Tempel, W., Yaniw, D., Arrowsmith, C., Edwards, A., Sundstrom, M., Weigelt, J., Bochkarev, A., Park, H., Structural Genomics Consortium (SGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.269 
• R-Value Work: 0.224 

Starting Model: experimental

Literature

Crystal Structure of Human SAR1a in Complex With GDP

Wang, J., Dimov, S., Tempel, W., Yaniw, D., Arrowsmith, C., Edwards, A., Sundstrom, M., Weigelt, J., Bochkarev, A., Park, H.

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.

Macromolecule Content

• Total Structure Weight: 47.3 kDa 
• Atom Count: 2,780 
• Modelled Residue Count: 336 
• Deposited Residue Count: 416 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GTP-binding protein SAR1a	A, B	208	Homo sapiens	Mutation(s): 0  Gene Names: SAR1A, SAR1, SARA, SARA1 EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NR31 (Homo sapiens) Explore Q9NR31  Go to UniProtKB:  Q9NR31
PHAROS:  Q9NR31 GTEx:  ENSG00000079332

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GDP	C [auth A], E [auth B]	GUANOSINE-5'-DIPHOSPHATE C10 H15 N5 O11 P2 QGWNDRXFNXRZMB-UUOKFMHZSA-N
UNX	D [auth A], F [auth B]	UNKNOWN ATOM OR ION X

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.269 
• R-Value Work: 0.224 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.295	α = 90
b = 63.814	β = 105.94
c = 62.132	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-03-21 
Deposition Author(s): Wang, J., Dimov, S., Tempel, W., Yaniw, D., Arrowsmith, C., Edwards, A., Sundstrom, M., Weigelt, J., Bochkarev, A., Park, H., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2006-03-21
  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: 2017-10-18
  Changes: Refinement description
• Version 1.4: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description