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:
Dec. 24, 2019
Filed:
Nov. 07, 2017
Fujifilm Wako Pure Chemical Corporation, Osaka, JP;
Osaka University, Suita, JP;
Junichi Takagi, Suita, JP;
FUJIFILM WAKO PURE CHEMICAL CORPORATION, Osaka, JP;
OSAKA UNIVERSITY, Suita, JP;
Abstract
An object of the present invention is to provide a fragment antibody which can be conveniently produced as one having antigen-binding activity, and which has a greater ability to crystallize itself alone or as a complex with an antigen molecule than that of Fv-clasp (v1) even in a case where the fragment antibody is obtained in anexpression system. The present invention relates to a fragment antibody including a complex of a peptide (VH(112C)-SARAH) in which an N-terminus of a SARAH domain is linked to a C-terminus of a heavy chain domain (VH region) of an antibody, and an amino acid residue of antibody residue 112 according to Chothia numbering scheme in the VH region is mutated to cysteine; and a peptide (VL-SARAH(37C)) in which an N-terminus of a SARAH domain is linked to a C-terminus of a light chain domain (VL region) of an antibody, and an amino acid residue at position 13 from the C-terminus in the SARAH domain is mutated to cysteine.