Abstract
A convenient and straightforward synthesis of an amino acid analog, [p-(N-alpha-Fmoc-L-aspartic acid-beta-amido)benzyl]-EDTA tetra-tert-butyl ester, compatible with Fmoc solid phase peptide synthesis strategy is described. This reagent was used to incorporate p-aminobenzyl-EDTA at an internal sequence position in an HIV-1 Tat protein fragment. After cleavage from the resin and standard deprotection, the peptide was purified by high-performance liquid chromatography and characterized by mass spectrometry. Through this methodology, flexible linkers of different lengths and containing various structures can be placed between the alpha-carbon backbone of peptides and metal chelates. These peptides will provide a new class of affinity cleaving reagents that can be directed against protein and nucleic acid targets.
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Amino Acid Sequence
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Amino Acids / chemical synthesis*
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Amino Acids / chemistry
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Aspartic Acid / analogs & derivatives*
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Aspartic Acid / chemical synthesis
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Aspartic Acid / chemistry
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Chelating Agents / chemical synthesis
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Chelating Agents / chemistry
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Chromatography, High Pressure Liquid
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Edetic Acid / analogs & derivatives*
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Edetic Acid / chemical synthesis
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Edetic Acid / chemistry
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Gene Products, tat / chemical synthesis
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Gene Products, tat / chemistry
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Gene Products, tat / genetics
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HIV-1 / chemistry
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HIV-1 / genetics
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Indicators and Reagents
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Magnetic Resonance Spectroscopy
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Molecular Sequence Data
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Molecular Structure
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Peptides / chemical synthesis*
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Peptides / chemistry
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tat Gene Products, Human Immunodeficiency Virus
Substances
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(4-(N-alpha-fluorenylmethoxycarbonyl-aspartic acid beta-amido)benzyl)EDTA tetra tert-butyl ester
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Amino Acids
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Chelating Agents
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Gene Products, tat
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Indicators and Reagents
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Peptides
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tat Gene Products, Human Immunodeficiency Virus
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Aspartic Acid
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aminobenzyl-EDTA
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Edetic Acid