Immunoglobulin-binding protein, and affinity carrier using same
US12428451B2 · kind B2 · utility
0Cited by
0References
18Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 23, 2019 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Feb 7, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K17/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An affinity carrier may have improved alkali resistance. An immunoglobulin-binding protein containing a mutant polypeptide chain, as well as an affinity carrier containing a solid-phase carrier to which the immunoglobulin-binding protein is bound, may be a mutant polypeptide chain having an amino acid sequence having at least 85% identity to an amino acid sequence indicated by any of SEQ ID NO: 1-6 and 57-62, having a predetermined mutation, and having immunoglobulin-binding activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.