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:
Jun. 03, 2025
Filed:
Jan. 09, 2020
Spiber Inc., Tsuruoka, JP;
Keisuke Morita, Tsuruoka, JP;
Yunosuke Abe, Tsuruoka, JP;
Hiroyuki Nakamura, Tsuruoka, JP;
Shota Togashi, Tsuruoka, JP;
Tetsuo Asakura, Fuchu, JP;
Spiber Inc., Tsuruoka, JP;
Abstract
The present invention relates to a modified fibroin including a domain sequence represented by Formula 1: [(A)motif-REP]or Formula 2: [(A)motif-REP]-(A)motif, and having a serine residue content rate of less than 5.5%. [In Formula 1 and Formula 2, the (A)motif represents an amino acid sequence consisting of 4 to 27 amino acid residues, and the number of alanine residues with respect to the total number of amino acid residues in the (A)motif is 80% or more. REP represents an amino acid sequence consisting of 10 to 200 amino acid residues. m represents an integer of 10 to 300. The plurality of (A)motifs may be the same amino acid sequence or different amino acid sequences. A plurality of REPs may be the same amino acid sequence or different amino acid sequences.]