Site-specific encoding of photoactivity and photoreactivity into antibody fragments.
Site-specific encoding of photoactivity and photoreactivity into antibody fragments.
复制标题
DOI:
10.1038/s41589-022-01251-9
复制
发表时间:
2023-06
影响因子:
14.8
通讯作者:
Sachdeva, Amit
中科院分区:
文献类型:
--
作者:
Bridge, Thomas;Wegmann, Udo;Crack, Jason C. C.;Orman, Kate;Shaikh, Saher A. A.;Farndon, William;Martins, Carlo;Saalbach, Gerhard;Sachdeva, Amit
Design of biomolecules that perform two or more distinct functions in response to light remains challenging. Here, we have introduced concurrent photoactivity and photoreactivity into an epidermal growth factor receptor (EGFR)-targeting antibody fragment, 7D12. This was achieved by site-specific incorporation of photocaged tyrosine (pcY) for photoactivity and p-benzoyl-ʟ-phenylalanine (Bpa) for photoreactivity into 7D12. We identified a position for installing Bpa in 7D12 that has minimal effect on 7D12–EGFR binding affinity in the absence of light. Upon exposure to 365-nm light, this Bpa-containing 7D12 mutant forms a covalent bond with EGFR in an antigen-specific manner. We then developed a method for site-specific incorporation of pcY and Bpa at two distinct sites in 7D12. Finally, we demonstrated that in the absence of light, this pcY- and Bpa-containing mutant of 7D12 does not bind to EGFR, but irradiation with 365-nm light activates (1) specific binding and (2) covalent bond formation with EGFR. Development of a generalized method for dual site-specific incorporation of nonnatural photocaged and photoreactive amino acids into proteins expressed in live cells enabled engineering of a photoreactive photoactive antibody fragment.
登录
查看更多内容
影响因子:
4.6
作者:
Krüwel T;Nevoltris D;Bode J;Dullin C;Baty D;Chames P;Alves F
通讯作者:
Alves F
影响因子:
64.8
作者:
Jumper J;Evans R;Pritzel A;Green T;Figurnov M;Ronneberger O;Tunyasuvunakool K;Bates R;Žídek A;Potapenko A;Bridgland A;Meyer C;Kohl SAA;Ballard AJ;Cowie A;Romera-Paredes B;Nikolov S;Jain R;Adler J;Back T;Petersen S;Reiman D;Clancy E;Zielinski M;Steinegger M;Pacholska M;Berghammer T;Bodenstein S;Silver D;Vinyals O;Senior AW;Kavukcuoglu K;Kohli P;Hassabis D
通讯作者:
Hassabis D
DOI:
10.1073/pnas.151260298
发表时间:
2001-07-17
影响因子:
11.1
作者:
Chmura, AJ;Orton, MS;Meares, CF
通讯作者:
Meares, CF
影响因子:
4
作者:
Islam M;Kehoe HP;Lissoos JB;Huang M;Ghadban CE;Berumen Sánchez G;Lane HZ;Van Deventer JA
通讯作者:
Van Deventer JA
DOI:
10.1073/pnas.172226299
发表时间:
2002-08-20
影响因子:
11.1
作者:
Chin, JW;Martin, AB;Schultz, PG
通讯作者:
Schultz, PG