Artificial repeat proteins evolved as habit modifiers and protein origami templates for the morphosynthesis of (111)-terminated gold nanocrystals (Conference Presentation)

2020 ◽  
Author(s):  
Janak Prasad ◽  
Sébastien Viollet ◽  
Laureen Moreaud ◽  
Agathe Urvoas ◽  
Marie Valerio-Lepiniec ◽  
...  
Keyword(s):  
Gold Nanocrystals ◽  
Repeat Proteins

scholarly journals Directed evolution of artificial repeat proteins as habit modifiers for the morphosynthesis of (111)-terminated gold nanocrystals

Nanoscale ◽  
2019 ◽  
Vol 11 (37) ◽  
pp. 17485-17497 ◽  
Author(s):  
Janak Prasad ◽  
Sébastien Viollet ◽  
Kargal L. Gurunatha ◽  
Agathe Urvoas ◽  
Agathe C. Fournier ◽  
...  
Keyword(s):  
Directed Evolution ◽  
Chemical Affinity ◽  
High Chemical ◽  
Gold Nanocrystals ◽  
Repeat Proteins ◽  
Structural Selectivity

Artificial repeat proteins are selected by directed evolution for their high chemical affinity for gold and structural selectivity for (111) facets. The proteins chaperone the growth of (111)-terminated nanocrystals and form a functional shell.

In silico Defining the Repeat-containing Proteins in the Acinetobacter baumannii Proteome, a Great Reservoir of Templates for Synthetic Biology

2019 ◽  
Vol 13 (2) ◽  
pp. 149-158
Author(s):  
Mohammad Reza Rahbar ◽  
Mahboubeh Zarei ◽  
Navid Nezafat ◽  
Manica Negahdaripour ◽  
Younes Ghasemi
Keyword(s):  
Acinetobacter Baumannii ◽  
Drug Targets ◽  
Closely Related Species ◽  
Great Ability ◽  
Repeat Proteins ◽  
Significant Difference ◽  
Biological Determinants ◽  
Tandem Repeat Proteins ◽  
Diagnostic Approaches ◽  
Novel Therapeutic

Background: Acinetobacter baumannii is an important nosocomial pathogen with great ability to resist antibiotics. Tandem repeat proteins, abundant in prokaryotic proteomes, attract attention due to their role in virulence and various biological processes. Defining repeat- containing proteins may pave the way to find novel therapeutic targets as well as vaccine candidate and give pieces of evidence of mechanisms of evolution and adaptation of organisms to various environmental conditions. Objective: In the present study, we employed bioinformatics tools to define repeatcontaining proteins within A. baumannii proteome for emphasizing the existence of natural sources for synthesizing novel therapeutic and diagnosis material. Results: We defined various kinds of repeat modules in a number of proteins and compared the abundance of these proteins in some closely related species. No significant difference was observed in the count of repeat-containing proteins in different species. But the existence of some important virulence factors is mentionable in our screening. Conclusion: Repeat containing proteins are important biological determinants of A. baumannii and are well worth researching for finding drug targets and vaccine candidates. These proteins can be served as a template for designing and synthesizing peptides for therapeutic and diagnostic approaches.

The interact of photons of light with photonic gold nanocrystals prepared using eriocephalus punctulatus assisted poly-yol route

Optik ◽  
2020 ◽  
Vol 224 ◽  
pp. 165543
Author(s):  
L.A.M. Al-Sagheer ◽  
Ahmed Alshehrie ◽  
W. Elsayed
Keyword(s):  
Gold Nanocrystals

Facet-dependent gold nanocrystals for effective photothermal killing of bacteria

2021 ◽  
Vol 407 ◽  
pp. 124617
Author(s):  
Sibidou Yougbaré ◽  
Hung-Lung Chou ◽  
Chao-Hsuan Yang ◽  
Dyah Ika Krisnawati ◽  
Achmad Jazidie ◽  
...  
Keyword(s):  
Gold Nanocrystals

Enriching the branching of Au@PdAu core–shell nanocrystals using a syringe pump: kinetics control meets lattice mismatch

CrystEngComm ◽  
2021 ◽  
Vol 23 (13) ◽  
pp. 2582-2589
Author(s):  
Gongguo Zhang ◽  
Yanyun Ma ◽  
Xiaowei Fu ◽  
Wenjun Zhao ◽  
Feng Liu ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Surface Diffusion ◽  
Lattice Mismatch ◽  
Core Shell ◽  
Syringe Pump ◽  
Seeded Growth ◽  
Gold Nanocrystals

Gold@palladium–gold nanocrystals with a tunable branched shape are prepared via seeded growth, where the use of a syringe pump allows the manipulation over reaction kinetics as coupled by surface diffusion and strain caused by lattice mismatch.

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