Molecular characterization and ornithine-urea cycle genes expression in air-breathing magur catfish (Clarias magur) during exposure to high external ammonia

Bodhisattwa Banerjee; Debaprasad Koner; Rubaiya Hasan; Nirmalendu Saha

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Molecular characterization and ornithine-urea cycle genes expression in air-breathing magur catfish (Clarias magur) during exposure to high external ammonia

机译：在暴露于高外氨期间空气呼吸毛细管（Clarias Magur）中的分子表征和鸟氨酸 - 尿素循环基因表达

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The air-breathing magur catfish (Clarias magur) is a potential ureogenic teleost because of its functional ornithine-urea cycle (OUC), unlike typical freshwater teleosts. The ability to convert ammonia waste to urea was a significant step towards land-based life forms from aquatic predecessors. Here we investigated the molecular characterization of some OUC genes and the molecular basis of stimulation of ureogenesis via the OUC in magur catfish. The deduced amino acid sequences from the complete cDNA coding sequences of ornithine transcarbamyolase, argininosuccinate synthase, and argininosuccinate lyase indicated that phylogenetically magur catfish is very close to other ureogenic catfishes. Ammonia exposure led to a significant induction of major OUC genes and the gene products in hepatic and in certain non-hepatic tissues of magur catfish. Hence, it is reasonable to assume that the induction of ureogenesis in magur catfish under hyper-ammonia stress is mediated through the activation of OUC genes as an adaptational strategy.

机译：由于其功能性鸟氨酸 - 尿素循环（OUC），空气呼吸的Magur Catfish（Clarias Magur）是一种潜在的含有型乳蛋白联静脉（OUC），与典型的淡水TeleoSts不同。将氨垃圾转化为尿素的能力是朝着水生前辈的陆地生命形式的重要一步。在这里，我们研究了一些OUC基因的分子表征通过Magur鲶鱼的OUC刺激uReoges的分子基础。来自鸟氨酸转基因蛋白酶，精氨酸琥珀酸盐酶和精氨酸琥珀酸盐酶的完全cDNA编码序列的推导率氨基酸序列表明，系统发育地神经鲶鱼非常接近于其他含紫外线。氨暴露导致肝脏和某些非肝脏组织的主要OUC基因和基因产物的显着诱导。因此，假设在Hyper-氨胁迫下Magur Catfish的诱导通过激活OUC基因作为适应策略来介导的uReogy的诱导。

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《Genomics》 |2020年第3期|共14页
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Bodhisattwa Banerjee; Debaprasad Koner; Rubaiya Hasan; Nirmalendu Saha;
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Molecular phylogeneticsSequence analysisHyper-ammonia stressGene inductionProtein expressionUreogenesis;

机译：分子系统发育序列分析效果 - 氨胁迫诱导蛋白表达蛋白;

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1. Molecular characterization and ornithine-urea cycle genes expression in air-breathing magur catfish (Clarias magur) during exposure to high external ammonia [J] . Genomics . 2020,第3期

机译：在暴露于高外氨期间的空气呼吸毛细管（Clarias Magur）中的分子表征和鸟氨酸 - 尿素循环基因表达
2. Differential expression of multiple glutamine synthetase genes in air-breathing magur catfish, Clarias magur and their induction under hyper-ammonia stress [J] . Banerjee Bodhisattwa, Koner Debaprasad, Bhuyan Gitalee, Gene: An International Journal Focusing on Gene Cloning and Gene Structure and Function . 2018,第期

机译：多谷氨酰胺合成酶基因的差异表达在空气呼吸毛细管，Clarias Magur及其在超氨胁迫下的诱导
3. Hyper-ammonia stress causes induction of inducible nitric oxide synthase gene and more production of nitric oxide in air-breathing magur catfish, Clarias magur (Hamilton) [J] . Kumari Suman, Choudhury Mahua G., Saha Nirmalendu Fish Physiology and Biochemistry . 2019,第3期

机译：Hyper-氨胁迫导致诱导诱导型一氧化氮合酶基因的诱导和更多在空气呼吸的Magur Catfish中产生一氧化氮，Clarias Magur（Hamilton）
4. Molecular cloning, characterization and expression of two orthologs of Arabidopsis thaliana phenylalanine ammonia-lyase 1 (AtPAL1) from rapeseed (Brassica napus L.) [C] . NI Yu, JIANG Honglin, LI Jiana, Proceedings of the 12th International Rapeseed Congress: Sustainable Development in Cruciferous Oilseed Crops Production . 2007

机译：油菜（Brassica napus L.）拟南芥拟南芥苯丙氨酸解氨酶1（AtPAL1）的两个直系同源物的分子克隆，表征和表达
5. Molecular characterization of type I and type II interferons and identification of interferon stimulated genes in channel catfish. [D] . Milev-Milovanovic, Ivanka. 2008

机译：channel鱼中I型和II型干扰素的分子特征以及干扰素刺激基因的鉴定。
6. Purification crystallization preliminary X-ray diffraction and molecular-replacement studies of catfish (Clarias magur) haemoglobin [O] . S. M. Jaimohan, M. D. Naresh, A. B. Mandal 2012

机译：fish鱼血红蛋白的纯化结晶初步X射线衍射和分子置换研究
7. The genome of walking catfish Clarias magur (Hamilton, 1822) unveils the genetic basis that may have facilitated the development of environmental and terrestrial adaptation systems in air-breathing catfishes [O] . Basdeo Kushwaha, Manmohan Pandey, Paramananda Das, 2021

机译：步行鲶鱼Clarias Magur（Hamilton，1822）的基因组推出了可能已经促进了呼吸鲶鱼中环境和陆地适应系统的发展的遗传基础

Molecular characterization and ornithine-urea cycle genes expression in air-breathing magur catfish (Clarias magur) during exposure to high external ammonia

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