In Silico Identification and Expression Analysis of Superoxide Dismutases in Tenebrio Molitor

Overview

Journal Genes Genomics

Specialty Genetics

Date 2024 May 3

PMID 38700830

Authors

Ho Am Jang

Hyeonjun Shin

Seo Jin Lee

Sung Min Ku

Jae Hui Kim

Dong Woo Kang

So Yeon Choi

Sang Mok Jung

Hyun Woung Shin

Yong Seok Lee

Yeon Soo Han

Yong Hun Jo

Affiliations

Soon will be listed here.

Abstract

Background: Insects encounter various environmental stresses, in response to which they generate reactive oxygen species (ROS). Superoxide dismutase (SOD) is an antioxidant metalloenzyme that scavenges superoxide radicals to prevent oxidative damage.

Objective: To investigate expressions of SODs under oxidative stress in Tenebrio molitor.

Methods: Here, we investigated the transcriptional expression of SODs by pesticide and heavy metals in Tenebrio moltior. First, we searched an RNA-Seq database for T. molitor SOD (TmSOD) genes and identified two SOD isoforms (TmSOD1-iso1 and iso2). We examined their activities under developmental stage, tissue-specific, and various types (pesticide and heavy metal) of oxidative stress by using qPCR.

Results: Our results revealed two novel forms of TmSODs. These TmSODs had a copper/zinc superoxide dismutase domain, active site, Cu binding site, Zn binding site, E-class dimer interface, and P-class dimer interface. TmSODs (TmSOD1-iso1 and iso2) were expressed in diverse developmental phases and tissues. Pesticides and heavy metals caused an upregulation of these TmSODs.

Conclusion: Our findings suggest that the two TmSODs have different functions in T. molitor, providing insights into the detoxification ability of T. molitor.

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