Bacterial protein patterning by micro-contact printing of PLL-g-PEG

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • V. Saravia - , Max Planck Institute of Colloids and Interfaces (Author)
  • S. Küpcü - , University of Natural Resources and Life Sciences, Vienna (Author)
  • M. Nolte - , Max Planck Institute of Colloids and Interfaces (Author)
  • C. Huber - , University of Natural Resources and Life Sciences, Vienna (Author)
  • D. Pum - , University of Natural Resources and Life Sciences, Vienna (Author)
  • A. Fery - , Max Planck Institute of Colloids and Interfaces (Author)
  • U. B. Sleytr - , University of Natural Resources and Life Sciences, Vienna (Author)
  • J. L. Toca-Herrera - , CIC biomaGUNE (Author)

Abstract

Biomimetic micro-patterned surfaces of three S-layer (fusion) proteins, wild type (SbpA), enhanced green fluorescence protein (SbpA-EGFP) and streptavidin (SbpA-STV), were built by microcontact printing of poly-l-lysine grafted polyethylene glycol (PLL-g-PEG). The functionality of the adsorbed proteins was studied with atomic force microscopy and fluorescence microscopy. Atomic force microscopy (AFM) measurements showed that wild-type SbpA recrystallized on PLL-g-PEG free areas, while fluorescent properties of SbpA-EGFP and the interaction of SbpA-streptavidin heterotetramers with biotin were not affected due to the adsorption on the micro patterned substrates.

Details

Original languageEnglish
Pages (from-to)247-252
Number of pages6
JournalJournal of biotechnology
Volume130
Issue number3
Publication statusPublished - 30 Jun 2007
Peer-reviewedYes
Externally publishedYes

External IDs

PubMed 17561298

Keywords

Keywords

  • Atomic force microscopy, Biomimetic surfaces, Enhanced green fluorescent protein, Micro patterning, S-layer fusion protein, Streptavidin