Identification of Metal-Binding Peptides and Their Conjugation onto Nanoparticles of Superparamagnetic Iron Oxides and Liposomes

2020 ◽  
Vol 12 (22) ◽  
pp. 24623-24634
Author(s):  
Tomonobu Kodama ◽  
Akifumi Yoshihara ◽  
Isha Goel ◽  
Masaki Sekino ◽  
Akihiro Kuwahata ◽  
...  
Keyword(s):  
Iron Oxides ◽  
Metal Binding ◽  
Superparamagnetic Iron Oxides ◽  
Metal Binding Peptides ◽  
Binding Peptides

scholarly journals A new approach to biomining: Bioengineering surfaces for metal recovery from aqueous solutions

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jesica Urbina ◽  
Advait Patil ◽  
Kosuke Fujishima ◽  
Ivan G. Paulino-Lima ◽  
Chad Saltikov ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Metal Binding ◽  
Raw Materials ◽  
Extraction Methods ◽  
Metal Recovery ◽  
Consumer Electronics ◽  
Metal Extraction ◽  
Copper Binding ◽  
Metal Binding Peptides ◽  
Binding Peptides

Abstract Electronics waste production has been fueled by economic growth and the demand for faster, more efficient consumer electronics. The glass and metals in end-of-life electronics components can be reused or recycled; however, conventional extraction methods rely on energy-intensive processes that are inefficient when applied to recycling e-waste that contains mixed materials and small amounts of metals. To make e-waste recycling economically viable and competitive with obtaining raw materials, recovery methods that lower the cost of metal reclamation and minimize environmental impact need to be developed. Microbial surface adsorption can aid in metal recovery with lower costs and energy requirements than traditional metal-extraction approaches. We introduce a novel method for metal recovery by utilizing metal-binding peptides to functionalize fungal mycelia and enhance metal recovery from aqueous solutions such as those found in bioremediation or biomining processes. Using copper-binding as a proof-of-concept, we compared binding parameters between natural motifs and those derived in silico, and found comparable binding affinity and specificity for Cu. We then combined metal-binding peptides with chitin-binding domains to functionalize a mycelium-based filter to enhance metal recovery from a Cu-rich solution. This finding suggests that engineered peptides could be used to functionalize biological surfaces to recover metals of economic interest and allow for metal recovery from metal-rich effluent with a low environmental footprint, at ambient temperatures, and under circumneutral pH.

Homo-phytochelatins are heavy metal-binding peptides of homo-glutathione containing Fabales

FEBS Letters ◽  
1986 ◽  
Vol 205 (1) ◽  
pp. 47-50 ◽  
Author(s):  
E. Grill ◽  
W. Gekeler ◽  
E.-L. Winnacker ◽  
H.H. Zenk
Keyword(s):  
Heavy Metal ◽  
Metal Binding ◽  
Metal Binding Peptides ◽  
Heavy Metal Binding ◽  
Binding Peptides

DNA Hydrolysis and Oxidative Cleavage by Metal-Binding Peptides Tethered to Rhodium Intercalators†

Biochemistry ◽  
2002 ◽  
Vol 41 (1) ◽  
pp. 343-356 ◽  
Author(s):  
Kimberly D. Copeland ◽  
Marilena P. Fitzsimons ◽  
Robert P. Houser ◽  
Jacqueline K. Barton
Keyword(s):  
Metal Binding ◽  
Oxidative Cleavage ◽  
Dna Hydrolysis ◽  
Metal Binding Peptides ◽  
Binding Peptides

Biosynthetic regulation of phytochelatins, heavy metal-binding peptides

2005 ◽  
Vol 100 (6) ◽  
pp. 593-599 ◽  
Author(s):  
Kazumasa Hirata ◽  
Naoki Tsuji ◽  
Kazuhisa Miyamoto
Keyword(s):  
Heavy Metal ◽  
Metal Binding ◽  
Metal Binding Peptides ◽  
Heavy Metal Binding ◽  
Binding Peptides

Bacterial surface display of metal binding peptides as whole-cell biocatalysts for 4-nitroaniline reduction

RSC Advances ◽  
2015 ◽  
Vol 5 (107) ◽  
pp. 87998-88001 ◽  
Author(s):  
Dong-Yu Tsai ◽  
Yi-Jung Tsai ◽  
Chia-Ho Yen ◽  
Chun-Yu Ouyang ◽  
Yi-Chun Yeh
Keyword(s):  
Metal Binding ◽  
Surface Display ◽  
Whole Cell ◽  
Bacterial Surface ◽  
Bacterial Surface Display ◽  
Metal Binding Peptides ◽  
Recombinant Microorganisms ◽  
Binding Peptides

Using recombinant microorganisms expressing metal binding peptides as whole-cell biocatalysts for 4-nitroaniline reduction.

scholarly journals Transport of Metal-binding Peptides by HMT1, A Fission Yeast ABC-type Vacuolar Membrane Protein

1995 ◽  
Vol 270 (9) ◽  
pp. 4721-4728 ◽  
Author(s):  
Daniel F. Ortiz ◽  
Theresa Ruscitti ◽  
Kent F. McCue ◽  
David W. Ow
Keyword(s):  
Membrane Protein ◽  
Fission Yeast ◽  
Metal Binding ◽  
Vacuolar Membrane ◽  
Metal Binding Peptides ◽  
Binding Peptides

Changes in metal-binding peptides due to acclimation to cadmium transferred between ramets of Salvinia minima

Oecologia ◽  
1991 ◽  
Vol 88 (1) ◽  
pp. 109-115 ◽  
Author(s):  
P. M. Outridge ◽  
W. E. Rauser ◽  
T. C. Hutchinson
Keyword(s):  
Metal Binding ◽  
Metal Binding Peptides ◽  
Binding Peptides
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