Abstract
Based on X-ray crystal structure information, mono charged phosphinate isosteres of phosphotyrosine have been designed and incorporated in a short inhibitory peptide sequence of the Grb2-SH2 domain. The resulting compounds, by exploiting additional interactions, inhibit binding to the Grb2-SH2 domain as potently as the corresponding doubly charged (phosphonomethyl)phenylalanine analogue.
MeSH terms
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Adaptor Proteins, Signal Transducing*
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Binding Sites
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Crystallography, X-Ray
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Drug Design
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GRB2 Adaptor Protein
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Hydrogen Bonding
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Ligands
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Oligopeptides / chemical synthesis*
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Oligopeptides / chemistry
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Oligopeptides / pharmacology
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Phosphinic Acids / chemical synthesis*
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Phosphinic Acids / chemistry
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Phosphinic Acids / pharmacology
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Phosphotyrosine / analogs & derivatives*
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Phosphotyrosine / chemical synthesis*
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Phosphotyrosine / chemistry
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Proteins / antagonists & inhibitors*
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Proteins / chemistry*
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Structure-Activity Relationship
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src Homology Domains
Substances
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Adaptor Proteins, Signal Transducing
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GRB2 Adaptor Protein
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Ligands
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Oligopeptides
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Phosphinic Acids
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Proteins
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Phosphotyrosine