7TAM | pdb_00007tam

HRas G12V in complex with GDP

• PDB DOI: https://doi.org/10.2210/pdb7TAM/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2021-12-21 Released: 2022-12-28 
• Deposition Author(s): Kouidmi, I., Maddalena, M., Laplante, S.
• Funding Organization(s): Other private

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.87 Å
• R-Value Free: 
  0.201 (Depositor), 0.200 (DCC) 
• R-Value Work: 
  0.174 (Depositor), 0.170 (DCC) 
• R-Value Observed: 
  0.175 (Depositor) 

Starting Model: experimental

Literature

SI/II Pocket of Ras: An Opportunity for a Once "Undruggable" Target

Franca, T.C.C., Maddalena, M., Kouidmi, I., Ayotte, Y., Islam, S.T., LaPlante, S.R.

(2025) ACS Omega 

• DOI: https://doi.org/10.1021/acsomega.4c10493

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 19.45 kDa 
• Atom Count: 1,559 
• Modeled Residue Count: 166 
• Deposited Residue Count: 166 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GTPase HRas	A	166	Homo sapiens	Mutation(s): 1  Gene Names: HRAS, HRAS1 EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P01112 (Homo sapiens) Explore P01112  Go to UniProtKB:  P01112
PHAROS:  P01112 GTEx:  ENSG00000174775

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GDP (Subject of Investigation/LOI)	B [auth A]	GUANOSINE-5'-DIPHOSPHATE C10 H15 N5 O11 P2 QGWNDRXFNXRZMB-UUOKFMHZSA-N
CA	E [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N
MG	C [auth A], D [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.87 Å
• R-Value Free:  0.201 (Depositor), 0.200 (DCC) 
• R-Value Work:  0.174 (Depositor), 0.170 (DCC) 
• R-Value Observed: 0.175 (Depositor) 

Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 92.35	α = 90
b = 92.35	β = 90
c = 120.58	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
MxDC	data collection
autoPROC	data processing
XDS	data reduction
XSCALE	data scaling
PHENIX	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-12-28 
Deposition Author(s): Kouidmi, I., Maddalena, M., Laplante, S.

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Funding Organization	Location	Grant Number
Other private	Canada	CQDM SynergiQC grant

Revision History  

• Version 1.0: 2022-12-28
  Type: Initial release
  
• Version 1.1: 2023-10-25
  Changes: Data collection, Refinement description
• Version 1.2: 2025-03-12
  Changes: Database references, Structure summary