Patent · US Active

Immunoglobulin-binding protein

US11629168B2 · kind B2 · utility

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0References

13Claims

0Family size

Assignee

TOSOH CORPORATION · CN

Inventors

Naoki Yamanaka · Nagoya, JP
Yukie Uchida · Yokohama, JP
Yosuke TERAO · Yokohama, JP

Key dates

Filing date	Nov 8, 2018
Grant date	Apr 18, 2023
Priority date	—
Expiry date	May 29, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07K14/31
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention aims to provide an immunoglobulin-binding protein having improved chemical stability, especially stability against alkali. The object can be achieved by improving stability against alkali by substituting an amino acid residue(s) at a particular position(s) in an immunoglobulin-binding domain such as domain C of protein A derived from a bacterium belonging to the genus Staphylococcus, to another/other particular amino acid residue(s).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.