Metal-recognition by repeating polypeptide

Key Points

• Metal-recognition ability of polypeptides is demonstrated effectively in Escherichia coli.
• Chromium and gold were used to assess the polypeptides' binding capacity under controlled conditions.
• Peptide display techniques enabled the identification of specific binding sites for metals in the bacterial system.
• Findings may lead to advancements in bioengineering for metal remediation and recovery.