6M8H

Crystal Structure of the R208Q mutant of G(i) subunit alpha-1

• PDB DOI: https://doi.org/10.2210/pdb6M8H/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2018-08-21 Released: 2019-08-21 
• Deposition Author(s): Mascarenhas, R., Goossens, J., Leverson, B., Kothawala, S., Ballicora, M., Olsen, K., de freitas, D., Liu, D.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.07 Å
• R-Value Free: 0.197 
• R-Value Work: 0.165 
• R-Value Observed: 0.168 

Literature

FUNCTIONAL CONSEQUENCES OF ONCOGENIC MUTATIONS IN THE SWITCH II REGION OF Galphai1 and Galphas PROTEINS

Goossens, J.L., Leverson, B.D., Kothawala, S., Mascarenhas, R., Liu, D., Ballicora, M., Olsen, K.W., de Freitas, D.M.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 40.93 kDa 
• Atom Count: 2,797 
• Modelled Residue Count: 315 
• Deposited Residue Count: 354 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(i) subunit alpha-1	A	354	Rattus norvegicus	Mutation(s): 1  Gene Names: Gnai1, Gnai-1 EC: 3.6.5
UniProt
Find proteins for P10824 (Rattus norvegicus) Explore P10824  Go to UniProtKB:  P10824

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GSP	B [auth A]	5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE C10 H16 N5 O13 P3 S XOFLBQFBSOEHOG-UUOKFMHZSA-N
MG	C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.07 Å
• R-Value Free: 0.197 
• R-Value Work: 0.165 
• R-Value Observed: 0.168 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 79.558	α = 90
b = 79.558	β = 90
c = 105.421	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-08-21 
Deposition Author(s): Mascarenhas, R., Goossens, J., Leverson, B., Kothawala, S., Ballicora, M., Olsen, K., de freitas, D., Liu, D.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R15GM112025

Revision History  

• Version 1.0: 2019-08-21
  Type: Initial release
  
• Version 1.1: 2020-01-01
  Changes: Author supporting evidence
• Version 1.2: 2024-03-13
  Changes: Advisory, Data collection, Database references, Derived calculations