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Cited by 282

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Construction, Cloning, and Expression of Synthetic Genes Encoding Spider Dragline Silk

Prince, John T., McGrath, Kevin P., DiGirolamo, Carla M., Kaplan, David L.·1995·Biochemistry

Abstract

Synthetic genes encoding recombinant spider silk proteins have been constructed, cloned, and expressed. Protein sequences were derived from Nephila clavipes dragline silk proteins and reverse-translated to the corresponding DNA sequences. Codon selection was chosen to maximize expression levels in Escherichia coli. DNA "monomer" sequences were multimerized to encode high molecular weight synthetic spider silks using a "head-to-tail" construction strategy. Multimers were cloned into a prokaryotic expression vector and the encoded silk proteins were expressed in E. coli upon induction with IPTG. Four multimer, ranging in size from 14.7 to 41.3 kDa, were chosen for detailed analysis. These proteins were isolated by immobilized metal affinity chromatography and purified using reverse-phase HPLC. The composition and identity of the purified proteins were confirmed by amino acid composition analysis, N-terminal sequencing, laser desorption mass spectroscopy, and Western analysis using antibodies reactive to native spider dragline silk. Circular dichroism measurements indicate that the synthetic spider silks have substantial beta-sheet structure.

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Metadata

Authors
Prince, J. T., McGrath, K. P., DiGirolamo, C. M., & Kaplan, D. L.
Venue
Biochemistry
Published
1995-08-29
Volume
34
Issue
34
Pages
10879-10885
ISSN
  • 0006-2960 (ISSN-L)
  • 1520-4995
OpenAlex
W2085830562
Cited by
282
References
1
FWCI
7.07
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Construction, Cloning, and Expression of Synthetic Genes Encoding Spider Dragline Silk. https://app.cochat.ai/papers/10.1021/bi00034a022
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Prince, J. T., McGrath, K. P., DiGirolamo, C. M., & Kaplan, D. L. (1995). Construction, Cloning, and Expression of Synthetic Genes Encoding Spider Dragline Silk. Biochemistry. https://doi.org/10.1021/bi00034a022

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