The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 1999
Filed:
Jan. 22, 1998
Applicant:
Inventors:
Randolph V Lewis, Laramie, WY (US);
Cheryl Y Hayashi, Laramie, WY (US);
Assignee:
The University of Wyoming, Laramie, WY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C07H / ; C07K / ;
U.S. Cl.
CPC ...
435 691 ; 4353201 ; 435325 ; 4352523 ; 536 231 ; 530350 ;
Abstract
Cloned DNA encoding spider flagelliform silk proteins described. The translated amino acid sequence of the cloned cDNA shows that the flagelliform silk protein is composed largely of repeated motifs. The dominant motif of this protein is Gly-Pro-Gly-Gly-X, which can appear up to 63 times in tandem arrays. This motif likely forms Pro.sup.2 -Gly.sup.3 type II .beta.-turns. The resulting series of concatenated .beta.-turns are thought to form a helix (.beta.-spiral). The present inventors propose that this spring-like .beta.-spiral is the basis of the elasticity of silk.