Cited by 32Mass Spectrometry Techniques and ApplicationsProtein Kinase Regulation and GTPase SignalingAdvanced Proteomics Techniques and Applications

Detection and structural characterization of ras oncoprotein-inhibitors complexes by electrospray mass spectrometry

Ganguly, A.K., Pramanik, B.N., Huang, E.C., Liberles, S., Heimark, L., Liu, Y.H., Tsarbopoulos, A., Doll, R.J. +11 more·1997·Bioorganic & Medicinal Chemistry

Abstract

MS based methodology employing electrospray ionization (ESI) is described for the detection of ternary complexes in which SCH 54292 or SCH 54341 and GDP are noncovalently bound to oncogenic ras protein. The observed molecular weights of 19,816 and 19,570 Da confirmed the presence of noncovalent complexes of ras-GDP-SCH 54292 and ras-GDP-SCH 54341, respectively. We have also performed selective chemical modification of lysine residues of the ras protein complex followed by enzymatic digestion and on-line LC-ESI MS peptide mapping to determine protein-drug binding topography. There was a good correlation between nucleotide exchange inhibition as determined by the enzyme assay and evidence of complex formation as determined by MS.

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Registry

Crossref · 10.1016/s0968-0896(97)00021-7

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14 of 14 references verified0 citation errors · 0 not checkable

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  • SCH-54292 was designed to suppress formation of active GTP-bound Ras by binding to a cleft close to switch II on Ras protein.

    “For example, SCH-54292 (6) was designed to suppress the formation of active GTP-bound Ras by binding to a cleft close to switch II on Ras protein.46”

    From Overcoming Resistance to Drugs Targeting KRAS Mutation (2020) · cites this paper as [46]

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Authors
Ganguly, A. K., Pramanik, B. N., Huang, E. C., Liberles, S., Heimark, L., Liu, Y. H., Tsarbopoulos, A., Doll, R. J., Taveras, A. G., Remiszewski, S., Snow, M. E., Wang, Y. S., Vibulbhan, B., Cesarz, D., Brown, J. E., del Rosario, J., James, L., Kirschmeier, P., & Girijavallabhan, V.
Venue
Bioorganic & Medicinal Chemistry
Publisher
Elsevier BV
Published
1997-05
Volume
5
Issue
5
Pages
817-820
ISSN
0968-0896 (ISSN-L)
OpenAlex
W2003988185
Cited by
31
References
14
Citations by year
2023: 2 · 2022: 2 · 2020: 3 · 2019: 1 · 2018: 2 · 2017: 1 · 2016: 1 · 2015: 4 · 2013: 2 · 2012: 3
FWCI
0.45
Type
journal article
Language
en
Open access
closed
Locations
  • Bioorganic & Medicinal Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
Keywords
GDP binding, peptide mapping
MeSH terms
Amino Acid Sequence, Antineoplastic Agents, Binding Sites, Drug Evaluation, Preclinical, Glucosides, Molecular Sequence Data, Molecular Weight, Peptide Mapping, Proteins, Mass Spectrometry, Sulfonamides, ras Proteins, Guanine Nucleotide Exchange Factors, ras Guanine Nucleotide Exchange Factors, Macromolecular Substances, In Vitro Techniques

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