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Charge substitutions at the voltage-sensing module of domain III enhance actions of site-3 and site-4 toxins on an insect sodium channel

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 137 ()

Scorpion alpha-toxins bind at the pharmacologically-defined site-3 on the sodium channel and inhibit channel inactivation by preventing the outward mo......

A lateral oviduct secreted protein plays a vital role for egg movement through the female reproductive tract in the brown planthopper

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 132 ()

The oviduct serves as a delivery tube for mature eggs ovulated from ovaries to egg-laying sites. Oviduct secreted components play important roles in o......

SfABCC2 transporter extracellular loops 2 and 4 are responsible for the Cry1Fa insecticidal specificity against Spodoptera frugiperda

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 135 ()

Bacillus thuringiensis (Bt) bacteria produce Cry toxins that kill insect pests. Insect specificity of Cry toxins relies on their binding to larval gut......

Identification and functional characterization of sex pheromone receptors in mirid bugs (Heteroptera: Miridae)

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 136 ()

Mirid bugs are a group of important insect pests that cause large annual losses in agricultural production. Many studies have focused on the isolation......

MicroRNA miR-8 promotes cell growth of corpus allatum and juvenile hormone biosynthesis independent of insulin/IGF signaling in Drosophila melanogaster

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 136 ()

The Drosophila melanogaster corpus allatum (CA) produces and releases three types of sesquiterpenoid hormones, including juvenile hormone III bisepoxi......

Sage controls silk gland development by regulating Dfd in Bombyx mori

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 132 ()

Silk gland is an organ that produces and secretes silk proteins. The development of the silk gland is essential for high silk production yield and sil......

Interacting C/EBPg and YBP regulate DNA methyltransferase 1 expression in Bombyx mori embryos and ovaries

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 134 ()

DNA methylation is an important epigenetic modification. DNA methyltransferases (Dnmts), which catalyze the formation of 5-methylcytosine, play a role......

Involvement of clathrin-dependent endocytosis in cellular dsRNA uptake in aphids

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 132 ()

RNAi is an essential technology for studying gene function in eukaryotes, and is also considered to be a potential strategy for pest control. However,......

Trypsin-type serine protease p37k hydrolyzes CPAP3-type cuticle proteins in the molting fluid of the silkworm Bombyx mori

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 137 ()

Cuticular proteins analogous to peritrophin 3 (CPAP3)-type cuticle proteins constitute a family of proteins with three chitin-binding domains (CBDs) t......

Characterization of gustatory receptor 7 in the brown planthopper reveals functional versatility

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 132 ()

Insect pests consume tastants as their necessary energy and nutrient sources. Gustatory receptors play important roles in insect life and can form wit......

E93 confers steroid hormone responsiveness of digestive enzymes to promote blood meal digestion in the midgut of the mosquito Aedes aegypti

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 134 ()

Anautogenous female mosquitoes obtain the nutrients needed for egg development from vertebrate blood, and consequently they transmit numerous pathogen......

Proteomics of purified lamellocytes from Drosophila melanogaster HopTum-l identifies new membrane proteins and networks involved in their functions

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 134 ()

In healthy Drosophila melanogaster larvae, plasmatocytes and crystal cells account for 95% and 5% of the hemocytes, respectively. A third type of hemo......

Synergistic resistance of Helicoverpa armigera to Bt toxins linked to cadherin and ABC transporters mutations

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 137 ()

Resistance evolution of target pests reduces efficacy of Bacillus thuringiensis Cry toxins used in insect-pest control. Mutations in Cadherin (CAD) or......

Pyrethroid metabolism by eleven Helicoverpa armigera P450s from the CYP6B and CYP9A subfamilies

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 135 ()

Lepidopteran P450s of the CYP6B and CYP9A subfamilies are thought to play important roles in host plant adaptation and insecticide resistance. An incr......

Kruppel homolog 1 regulates photoperiodic reproductive plasticity in the cabbage beetle Colaphellus bowringi

期刊: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY, 2021; 134 ()

Many insects exhibit reproductive plasticity where the photoperiod determines whether the insect becomes reproductively active or enters diapause. Adu......

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