| General information | 
| TUP ID: | 12 | 
| TUP Sequence: | WI(S/P)(S/Q)XDW | 
| Library: | NA | 
| Bind to: | Fc region of IgG | 
| TUP Type: | Selection-related TUP | 
| Experimentally-verified: | Yes | 
| Reference: | PMID: 10395676 | 
|  | 15620878 | 
|  | 21248664 | 
| Description: |  | 
| Curator: | Bifang He | 
| Curation Date: | 2019-03-21 |