alexa A cold-induced thioredoxin h of rice, OsTrx23, negatively regulates kinase activities of OsMPK3 and OsMPK6 in vitro.
Microbiology

Microbiology

Journal of Antivirals & Antiretrovirals

Author(s): Xie G, Kato H, Sasaki K, Imai R

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Abstract Cytosolic thioredoxins are small conserved proteins that are involved in cellular redox regulation. Here, we report that a major and cold-induced thioredoxin h of rice, OsTrx23, has an inhibitory activity on stress-activated mitogen-activated protein kinases (MAPKs), OsMPK3 and OsMPK6 in vitro. This inhibition effects were redox-dependent and did not involve stable physical interaction. The data suggested a novel mechanism for redox regulation of MAPKs in plants. This article was published in FEBS Lett and referenced in Journal of Antivirals & Antiretrovirals

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