6TA7

CRYSTAL STRUCTURE OF HUMAN G3BP1-NTF2 IN COMPLEX WITH HUMAN CAPRIN1-DERIVED SOLOMON MOTIF

• PDB DOI: https://doi.org/10.2210/pdb6TA7/pdb

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


• Deposited: 2019-10-29 Released: 2021-05-12 
• Deposition Author(s): Schulte, T., Achour, A., Panas, M.D., McInerney, G.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.93 Å
• R-Value Free: 0.252 
• R-Value Work: 0.207 
• R-Value Observed: 0.208 

Literature

Caprin-1 binding to the critical stress granule protein G3BP1 is regulated by pH

Schulte, T., Panas, M.D., Williams, L., Kedersha, N., Fleck, J.S., Tan, T.J., Olsson, A., Morro, A.M., Hanke, L., Nilvebrant, J., Giang, K.A., Nygren, P.A., Anderson, P., Achour, A., McInerney, G.M.

(2021) Biorxiv 

• DOI: https://doi.org/10.1101/2021.02.05.429362

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: isothermal titration calorimetry

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

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

Biological assembly 2 assigned by authors.

Biological Assembly Evidence: isothermal titration calorimetry

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

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

Biological assembly 3 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 103.47 kDa 
• Atom Count: 6,516 
• Modelled Residue Count: 792 
• Deposited Residue Count: 902 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ras GTPase-activating protein-binding protein 1	A, B, C [auth D], D [auth F], G [auth C], H [auth E]	140	Homo sapiens	Mutation(s): 0  Gene Names: G3BP1, G3BP EC: 3.6.4.12 (PDB Primary Data), 3.6.4.13 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for Q13283 (Homo sapiens) Explore Q13283  Go to UniProtKB:  Q13283
PHAROS:  Q13283 GTEx:  ENSG00000145907

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Caprin-1	E [auth G], F [auth H]	31	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for Q14444 (Homo sapiens) Explore Q14444  Go to UniProtKB:  Q14444
PHAROS:  Q14444 GTEx:  ENSG00000135387

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	J [auth D]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
NA	I [auth A], K [auth D]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.93 Å
• R-Value Free: 0.252 
• R-Value Work: 0.207 
• R-Value Observed: 0.208 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 81.558	α = 90
b = 100.038	β = 90
c = 113.345	γ = 90

Software Package:

Software Name	Purpose
PHASER	phasing
PHENIX	refinement
Coot	model building
MxCuBE	data collection
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-05-12 
Deposition Author(s): Schulte, T., Achour, A., Panas, M.D., McInerney, G.M.

Revision History  

• Version 1.0: 2021-05-12
  Type: Initial release
  
• Version 1.1: 2024-01-24
  Changes: Data collection, Database references, Refinement description