7C41

KRAS G12V and H-REV107 peptide complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.28 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.261 

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Literature

A H-REV107 Peptide Inhibits Tumor Growth and Interacts Directly with Oncogenic KRAS Mutants.

Han, C.W.Jeong, M.S.Ha, S.C.Jang, S.B.

(2020) Cancers (Basel) 12

  • DOI: 10.3390/cancers12061412
  • Primary Citation of Related Structures:  
    7C3Z, 7C40, 7C41

  • PubMed Abstract: 
  • Kirsten-RAS (KRAS) has been the target of drugs because it is the most mutated gene in human cancers. Because of the low affinity of drugs for KRAS mutations, it was difficult to target these tumor genes directly. We found a direct interaction between KRAS G12V and tumor suppressor novel H-REV107 peptide with high binding affinity ...

    Kirsten-RAS (KRAS) has been the target of drugs because it is the most mutated gene in human cancers. Because of the low affinity of drugs for KRAS mutations, it was difficult to target these tumor genes directly. We found a direct interaction between KRAS G12V and tumor suppressor novel H-REV107 peptide with high binding affinity. We report the first crystal structure of an oncogenic mutant, KRAS G12V-H-REV107. This peptide was shown to interact with KRAS G12V in the guanosine diphosphate (GDP)-bound inactive state and to form a stable complex, blocking the activation function of KRAS. We showed that the peptide acted as an inhibitor of mutant KRAS targets by [α- 32 P] guanosine triphosphate (GTP) binding assay. The H-REV107 peptide inhibited pancreatic cancer and colon cancer cell lines in cell proliferation assay. Specially, the H-REV107 peptide can suppress pancreatic tumor growth by reduction of tumor volume and weight in xenotransplantation mouse models. Overall, the results presented herein will facilitate development of novel drugs for inhibition of KRAS mutations in cancer patients.


    Organizational Affiliation

    Department of Molecular Biology, College of Natural Sciences, Pusan National University, 2, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 46241, Korea.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GTPase KRasA,
E [auth G],
C [auth J],
D [auth M]
174Homo sapiensMutation(s): 1 
Gene Names: KRASKRAS2RASK2
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
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP01116
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HRAS-like suppressor 3B [auth D]10Homo sapiensMutation(s): 0 
Gene Names: PLAAT3HRASLS3HREV107PLA2G16
EC: 3.1.1.32 (PDB Primary Data), 3.1.1.4 (PDB Primary Data), 2.3.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P53816 (Homo sapiens)
Explore P53816 
Go to UniProtKB:  P53816
PHAROS:  P53816
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP53816
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.28 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.261 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.907α = 59.98
b = 84.339β = 89.96
c = 84.335γ = 89.97
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data collection
Cootmodel building

Structure Validation

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Ligand Structure Quality Assessment 



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Research Foundation (NRF, Korea)Korea, Republic Of2018R1D1A1B07043701

Revision History  (Full details and data files)

  • Version 1.0: 2021-05-19
    Type: Initial release