Investigating the Atomic and Mesoscale Interactions that Facilitate Spider Silk Protein Pre-Assembly

2021 ◽  
Author(s):  
David Onofrei ◽  
Dillan Stengel ◽  
Di Jia ◽  
Hannah R. Johnson ◽  
Samantha Trescott ◽  
...  
Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 511
Author(s):  
Yu Suzuki ◽  
Takanori Higashi ◽  
Takahiro Yamamoto ◽  
Hideyasu Okamura ◽  
Takehiro K. Sato ◽  
...  

Spider dragline silk is a biopolymer with excellent mechanical properties. The development of recombinant spider silk protein (RSP)-based materials with these properties is desirable. Formic acid (FA) is a spinning solvent for regenerated Bombyx mori silk fiber with excellent mechanical properties. To use FA as a spinning solvent for RSP with the sequence of major ampullate spider silk protein from Araneus diadematus, we determined the conformation of RSP in FA using solution NMR to determine the role of FA as a spinning solvent. We assigned 1H, 13C, and 15N chemical shifts to 32-residue repetitive sequences, including polyAla and Gly-rich regions of RSP. Chemical shift evaluation revealed that RSP is in mainly random coil conformation with partially type II β-turn structure in the Gly-Pro-Gly-X motifs of the Gly-rich region in FA, which was confirmed by the 15N NOE data. In addition, formylation at the Ser OH groups occurred in FA. Furthermore, we evaluated the conformation of the as-cast film of RSP dissolved in FA using solid-state NMR and found that β-sheet structure was predominantly formed.


Langmuir ◽  
2018 ◽  
Vol 34 (39) ◽  
pp. 11795-11805 ◽  
Author(s):  
Linnea Nilebäck ◽  
Suvi Arola ◽  
Mathias Kvick ◽  
Arja Paananen ◽  
Markus B. Linder ◽  
...  

2014 ◽  
Vol 14 (7) ◽  
pp. 936-942 ◽  
Author(s):  
John G. Hardy ◽  
André Pfaff ◽  
Aldo Leal-Egaña ◽  
Axel H. E. Müller ◽  
Thomas R. Scheibel

2011 ◽  
Vol 14 (3) ◽  
pp. B67-B75 ◽  
Author(s):  
Aldo Leal-Egaña ◽  
Gregor Lang ◽  
Carolin Mauerer ◽  
Jasmin Wickinghoff ◽  
Michael Weber ◽  
...  

2017 ◽  
Vol 27 (36) ◽  
pp. 1701427 ◽  
Author(s):  
Jana Petzold ◽  
Tamara B. Aigner ◽  
Filip Touska ◽  
Katharina Zimmermann ◽  
Thomas Scheibel ◽  
...  

2008 ◽  
Vol 47 (24) ◽  
pp. 4592-4594 ◽  
Author(s):  
Ute K. Slotta ◽  
Sebastian Rammensee ◽  
Stanislav Gorb ◽  
Thomas Scheibel

2003 ◽  
Vol 438-439 ◽  
pp. 382-385 ◽  
Author(s):  
Luru Dai ◽  
Yong Zhang ◽  
Zhong-can Ou-Yang

2014 ◽  
Vol 2014 (1) ◽  
pp. 35-42 ◽  
Author(s):  
J. Normandeau ◽  
C. Van Kessel ◽  
D. Nicholson ◽  
B. Rahusaar Routledge ◽  
A. Fawcett ◽  
...  

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