8EIE

KRAS4b K117N 1-185 bound to GNP-Mg2+

• PDB DOI: https://doi.org/10.2210/pdb8EIE/pdb

• Classification: ONCOPROTEIN, Hydrolase
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2022-09-14 Released: 2023-09-20 
• Deposition Author(s): Betts, L., Rossman, K.L.
• Funding Organization(s): National Institutes of Health/National Cancer Institute (NIH/NCI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.41 Å
• R-Value Free: 0.205 
• R-Value Work: 0.182 
• R-Value Observed: 0.183 

Literature

A crystallographic view of the fast-cycling KRAS mutant, K117N

Betts, L., Rossman, K.L.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 21.63 kDa 
• Atom Count: 1,495 
• Modelled Residue Count: 169 
• Deposited Residue Count: 185 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GTPase KRas	A	185	Homo sapiens	Mutation(s): 1  Gene Names: KRAS, KRAS2, RASK2 EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P01116 (Homo sapiens) Explore P01116  Go to UniProtKB:  P01116
PHAROS:  P01116 GTEx:  ENSG00000133703

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GNP (Subject of Investigation/LOI)	B [auth A]	PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER C10 H17 N6 O13 P3 UQABYHGXWYXDTK-UUOKFMHZSA-N
MG	C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.41 Å
• R-Value Free: 0.205 
• R-Value Work: 0.182 
• R-Value Observed: 0.183 
• Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.98	α = 90
b = 78.98	β = 90
c = 77.71	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-09-20 
Deposition Author(s): Betts, L., Rossman, K.L.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	5R01CA223495

Revision History  

• Version 1.0: 2023-09-20
  Type: Initial release