Combined Application of Orthogonal Sortases and Depsipeptide Substrates for Dual Protein Labeling.
Combined Application of Orthogonal Sortases and Depsipeptide Substrates for Dual Protein Labeling.
复制标题
联合应用正交分类酶和去肽底物进行双重蛋白质标记。
DOI:
10.1021/acs.bioconjchem.2c00411
复制
发表时间:
2022-12-21
影响因子:
4.7
通讯作者:
Webb ME
中科院分区:
文献类型:
--
作者:
Morgan HE;Arnott ZLP;Kamiński TP;Turnbull WB;Webb ME
Staphylococcus aureus sortase A is a transpeptidase that has been extensively exploited for site-specific modification of proteins and was originally used to attach a labeling reagent containing an LPXTG recognition sequence to a protein or peptide with an N-terminal glycine. Sortase mutants with other recognition sequences have also been reported, but in all cases, the reversibility of the transpeptidation reaction limits the efficiency of sortase-mediated labeling reactions. For the wildtype sortase, depsipeptide substrates, in which the scissile peptide bond is replaced with an ester, allow effectively irreversible sortase-mediated labeling as the alcohol byproduct is a poor competing nucleophile. In this paper, the use of depsipeptide substrates for evolved sortase variants is reported. Substrate specificities of three sortases have been investigated allowing identification of an orthogonal pair of enzymes accepting LPEToG and LPESoG depsipeptides, which have been applied to dual N-terminal labeling of a model protein mutant containing a second, latent N-terminal glycine residue. The method provides an efficient orthogonal site-specific labeling technique that further expands the biochemical protein labeling toolkit.
登录
查看更多内容
DOI:
10.1016/bs.apcsb.2017.04.008
发表时间:
2017
影响因子:
--
作者:
Jacobitz AW;Kattke MD;Wereszczynski J;Clubb RT
通讯作者:
Clubb RT
影响因子:
4.7
作者:
Hess, Gaelen T.;Guimaraes, Carla P.;Spooner, Eric;Ploegh, Hidde L.;Belcher, Angela M.
通讯作者:
Belcher, Angela M.
影响因子:
4.7
作者:
Le Gall CM;van der Schoot JMS;Ramos-Tomillero I;Khalily MP;van Dalen FJ;Wijfjes Z;Smeding L;van Dalen D;Cammarata A;Bonger KM;Figdor CG;Scheeren FA;Verdoes M
通讯作者:
Verdoes M
DOI:
10.1073/pnas.1411179111
发表时间:
2014-09-16
影响因子:
11.1
作者:
Dorr, Brent M.;Ham, Hyun Ok;Liu, David R.
通讯作者:
Liu, David R.
DOI:
10.1073/pnas.1101046108
发表时间:
2011-07-12
影响因子:
11.1
作者:
Chen, Irwin;Dorr, Brent M.;Liu, David R.
通讯作者:
Liu, David R.