Template:SBB-Protocols Assay3

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(Procedure)
(Controls)
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== Controls ==
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=== Controls ===
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# Chemically reduce silver nitrate to precipitate silver (tells us silver nitrate is precipitating)
 +
# Lyse cells over-expressing AG4 and run assay (tells us if AG4 is precipitating silver)
 +
# Wash non-AG4 cells with silver nitrate and look for colour change (tells us if precipitation occurs without AG4)

Revision as of 13:08, 15 April 2009

Contents

Silver Biomineralization Assay

Here we present an assay to determine whether the AG4 Silver binding peptide is present in the outer membrane of E.coli.

Materials

Procedure

  1. Grow the cells
  2. Wash with PBS
  3. Wash with silver nitrate
  4. Look for colour change


Controls

  1. Chemically reduce silver nitrate to precipitate silver (tells us silver nitrate is precipitating)
  2. Lyse cells over-expressing AG4 and run assay (tells us if AG4 is precipitating silver)
  3. Wash non-AG4 cells with silver nitrate and look for colour change (tells us if precipitation occurs without AG4)
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