The C‐terminal cysteine of turbot Scophthalmus maximus translationally controlled tumour protein plays a key role in antioxidation and growth‐promoting functions

作者: Z.-X. Zhang , D.-Y. Geng , Q. Han , S.-D. Liang , H.-R. Guo

DOI: 10.1111/JFB.12231

关键词:

摘要: The translationally controlled tumour protein (TCTP) of turbot Scophthalmus maximus (SmTCTP) contains only one cysteine (Cys¹⁷⁰) at the C-terminal end. biological role this Cys¹⁷⁰ in antioxidation and growth-promoting functions SmTCTP was examined by site-directed mutation C170A (Cys¹⁷⁰ →Ala¹⁷⁰). It found that not obviously decreased capacity mutant-smtctp-transformed bacteria exposed to 0·22 mM hydrogen peroxide, but also significantly interrupted normal growth survival flounder Paralichthys olivaceus gill (FG) cells, indicating a key played SmTCTP. This study suggested self-dimerization or dimerization with other interacting proteins is critical function

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