Protein & Peptide Letters

Prof. Ben M. Dunn  
Department of Biochemistry and Molecular Biology
University of Florida
College of Medicine
P.O. Box 100245
Gainesville, FL
USA
Email: bdunn@ufl.edu

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Efficient Manual Fmoc Solid-Phase Synthesis of the N-Terminal Segment of Surfactant Protein B (SP-B1-25)

Author(s): Suria Ramli, Ian R. Gentle, Benjamin P. Ross.

Abstract:

The N-terminal 25 residue segment of human surfactant protein B (SP-B1-25) was synthesised in 26% yield by manual Fmoc solid-phase peptide synthesis (Fmoc SPPS) using low-loading Fmoc-Gly-Wang resin. Substantial oxidation of Met21 occurred during the synthesis, and the addition of Bu4NBr to a TFA/water/EDT/TIS cleavage cocktail enabled facile reduction of Met(O)21-SP-B1-25 to SP-B1-25. The methods described herein are generally applicable to the Fmoc SPPS of difficult sequences containing methionine.

Keywords: Surfactant protein B (SP-B), Fmoc solid-phase peptide synthesis, peptide aggregation, low-loading resin, methionine sulfoxide, tetrabutylammonium bromide

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Article Details

VOLUME: 16
ISSUE: 7
Year: 2009
Page: [810 - 814]
Pages: 5
DOI: 10.2174/092986609788681706
Price: $58