AG3
AG3 is an inorganic-binding polypeptide that specifically recognizes Ag/Au surfaces. In silver systems, AG3 induces the reduction of Ag+ and regulates microcrystal morphology. In gold systems, AG3 acts as a non-reducing, high-affinity inhibitor that modulates nucleation-growth kinetics through interactions with metal clusters/surfaces to achieve size/morphology control. AG3 can be immobilized on polymer films, phages or nanosubstrates for applications in biomimetic mineralization, biosensors, precious metal recovery and patterned graphite templates.
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- CAS No.: 557064-55-8
- Formula: C57H80N12O16S
- Molecular Weight:1221.38
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
AG3 promotes the reduction of Ag+ to Ag0[1] during in vitro biomimetic synthesis.
AG3 can induce the formation of hexagonal, triangular and cubic silver microcrystal morphologies in vitro; its secondary structure in solution undergoes only minor changes after binding to silver[1].
AG3 inhibits the nucleation and surface reaction-limited growth processes of Au nanocrystals formed from Au (III) ions[2].
AG3 cannot reduce gold ions independently; it modulates the HEPES-mediated AuIII reduction mechanism, thereby preventing the formation of irregular precipitates[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 557064-55-8
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Molecular Weight 1221.38
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Formula C57H80N12O16S
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Sequence
Ala-Tyr-Ser-Ser-Gly-Ala-Pro-Pro-Met-Pro-Pro-Phe
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Sequence Shortening
AYSSGAPPMPPF
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
[1]. Zhang X, et al. Biomimetic synthesis silver crystallite by peptide AYSSGAPPMPPF immobilized on PET film in vitro. Journal of inorganic biochemistry. 2005 Aug;99(8):1692-7. [Content Brief]
[2]. Stanley SK, et al. Inhibitory effects of a phage-derived peptide on Au nanocrystal nucleation and growth. Langmuir : the ACS journal of surfaces and colloids. 2009 Sep 15;25(18):10886-92. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)