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Risk Assessment generated by a regulatory process (RA)
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BCH-RA-BR-294358-1   |   PDF   |   Print   |  
last updated: 28 Apr 2026
General Information
Risk assessment of corn event MON 95379 - Technical Opinion 7222/2020.
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05 Nov 2020
Risk assessment details
  • MON-95379-3 - Insect-protected maize
    | Bayer CropScience | Resistance to diseases and pests (Insects, Lepidoptera (butterflies and moths), Cotton bollworm (Helicoverpa spp.), European corn borer (Ostrinia nubilalis), Fall armyworm (Spodoptera frugiperda))
MON 95379 corn contains the cry1Da1_7 gene, which encodes the Cry1Da_7 protein, and the cry1B.868 gene, which encodes the Cry1B.868 protein, a chimeric protein constituted by the fusion of Domains I and II of the Cry1Be (Bt) protein, from the III of the Cry1Ca protein (Bt subsp. aizawai) and the C-terminal domain of Cry1Ab protein protoxin (Bt subsp. kurstaki). Ingestion of proteins by the target insect exposes them to alkaline conditions and proteases in its midgut, resulting in proteolytic cleavage of the protoxin domains of the proteins, converting the proteins into insecticidal active toxins. The Cry1Da_7 protein is the modified version of the Cry1Da protein and has approximately 99.7% (4 altered amino acids) sequence similarity to the native Bacillus thuringiensis Cry1Da protein. These changes were made to increase activity against the Helicoverpa zea pest while maintaining the spectrum ofactivity for Spodoptera frugiperda, both insects targeted by the technology present in MON 95379 corn. The Cry1B.868 protein is chimeric, having Domains I and II of the Cry1Be protein, Domain III of the Cry1Ca protein and the C-terminal Domain of the protein's protoxin Cry1Ab. The amino acid sequences of each domain in the Cry1B.868 protein are 100% identical to their respective domains in the donor proteins. The domain switch strategy aims to achieve high levels of activity against target lepidopteran insects.
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Methodology and points to consider
The assessment of the potential impact on non-target organisms indicated that, under expected agronomic conditions, MON 95379 maize is unlikely to cause adverse effects on these organisms compared to commercially grown maize; and the evaluation of MON 95379 maize using current management practices for the crop concluded that approval of this genetically modified maize is unlikely to impact agronomic practices and intended land use.
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Bioinformatics analyzes have determined that the proteins Cry1Da_7 and Cry1B.868 do not have structural similarity with sequences of gliadins, glutenins, toxic or allergenic proteins known and deposited in public databases, which could have an adverse effect on human health and from other mammals. Proteins Cry1Da_7 and Cry1B.868 are rapidly digested in simulated gastrointestinal fluids (pepsin and pancreatin) and do not demonstrate acute oral toxicity in mice at the highest levels tested, which far exceeds anticipated exposure by humans and other mammals. Thus, the consumption of proteins Cry1Da_7 and Cry1B.868 expressed in MON 95379 corn or its progeny does not pose a significant risk to human health and other mammals.
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MON 95379 and its derivatives are so safe for the human consumption as conventional corn.
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The results of the evaluations of several parameters indicate that MON 95379 corn does not have characteristics that could confer a risk of this plant becoming a weed or cause a significantly altered ecological impact when compared to conventional control corn. Environmental interactions data also indicate that MON 95379 corn has no susceptibility or increased tolerance to diseases or non-target insects. Taken together, these data show that maize MON 95379 does not pose a risk as a weed or result in a significant ecological impact when compared to conventional control corn and commercial references.
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Detailed composition analysis was conducted in accordance with the Organization for Economic Co-operation and Development (OECD) assessment guides to verify whether the levels of centesimal composition nutrients, key nutrients and anti-nutrients in grains and forage of MON maize 95379 were
comparable to conventional control corn and commercial references. The results of the 2018 crop in the United States showed no significant differences between MON 95379 corn and the conventional variety. The susceptibility of proteins Cry1Da_7 and Cry1B.868 produced by MON 95379 to degradation by pepsin and pancreatin was evaluated using proteins Cry1Da_7 and Cry1B.868 produced by Bacillus thuringiensis (Bt), which proved to be equivalent to the same proteins produced in plants. This equivalence in physicochemical characteristics justifies the use of proteins Cry1Da_7 and Cry1B.868 produced by Bt as test substances in protein safety studies (acute oral toxicity and digestibility).
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The MON 95379 event is as safe as its conventional equivalents. Within the scope of the powers assigned to it by art. 14 of Law 11,105/05, CTNBio considered that the request complies with the rules and legislation in force that aim to guarantee the biosecurity of the environment, agriculture, human and animal health, and concluded that genetically modified corn resistant to insects, event MON 95379, is substantially equivalent to conventional corn, and its consumption is safe for health human and animal.
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Risk analysis of genetically modified raw materials it is possible to conclude that genetically modified corn resistant to insects, event MON 95379, is as safe as its conventional equivalents.
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Molecular tradicional methods. 
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Information sharing with other databases
Yes
Yes
Yes
Yes
Yes
Additional information
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