Genomic, transcriptomic, and epigenomic analysis of a medicinal snake, Bungarus multicinctus, to provides insights into the origin of Elapidae neurotoxins
© 2023 Chinese Pharmaceutical Association and Institute of Materia Medica, Chinese Academy of Medical Sciences. Production and hosting by Elsevier B.V..
The many-banded krait, Bungarus multicinctus, has been recorded as the animal resource of JinQianBaiHuaShe in the Chinese Pharmacopoeia. Characterization of its venoms classified chief phyla of modern animal neurotoxins. However, the evolutionary origin and diversification of its neurotoxins as well as biosynthesis of its active compounds remain largely unknown due to the lack of its high-quality genome. Here, we present the 1.58 Gbp genome of B. multicinctus assembled into 18 chromosomes with contig/scaffold N50 of 7.53 Mbp/149.8 Mbp. Major bungarotoxin-coding genes were clustered within genome by family and found to be associated with ancient local duplications. The truncation of glycosylphosphatidylinositol anchor in the 3'-terminal of a LY6E paralog released modern three-finger toxins (3FTxs) from membrane tethering before the Colubroidea divergence. Subsequent expansion and mutations diversified and recruited these 3FTxs. After the cobra/krait divergence, the modern unit-B of β-bungarotoxin emerged with an extra cysteine residue. A subsequent point substitution in unit-A enabled the β-bungarotoxin covalent linkage. The B. multicinctus gene expression, chromatin topological organization, and histone modification characteristics were featured by transcriptome, proteome, chromatin conformation capture sequencing, and ChIP-seq. The results highlighted that venom production was under a sophisticated regulation. Our findings provide new insights into snake neurotoxin research, meanwhile will facilitate antivenom development, toxin-driven drug discovery and the quality control of JinQianBaiHuaShe.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:13 |
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| Enthalten in: |
Acta pharmaceutica Sinica. B - 13(2023), 5 vom: 01. Mai, Seite 2234-2249 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Xu, Jiang [VerfasserIn] |
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| Links: |
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| Themen: |
Antivenoms |
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| Anmerkungen: |
Date Revised 20.07.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.apsb.2022.11.015 |
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| PPN (Katalog-ID): |
NLM357523296 |
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| 245 | 1 | 0 | |a Genomic, transcriptomic, and epigenomic analysis of a medicinal snake, Bungarus multicinctus, to provides insights into the origin of Elapidae neurotoxins |
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| 520 | |a The many-banded krait, Bungarus multicinctus, has been recorded as the animal resource of JinQianBaiHuaShe in the Chinese Pharmacopoeia. Characterization of its venoms classified chief phyla of modern animal neurotoxins. However, the evolutionary origin and diversification of its neurotoxins as well as biosynthesis of its active compounds remain largely unknown due to the lack of its high-quality genome. Here, we present the 1.58 Gbp genome of B. multicinctus assembled into 18 chromosomes with contig/scaffold N50 of 7.53 Mbp/149.8 Mbp. Major bungarotoxin-coding genes were clustered within genome by family and found to be associated with ancient local duplications. The truncation of glycosylphosphatidylinositol anchor in the 3'-terminal of a LY6E paralog released modern three-finger toxins (3FTxs) from membrane tethering before the Colubroidea divergence. Subsequent expansion and mutations diversified and recruited these 3FTxs. After the cobra/krait divergence, the modern unit-B of β-bungarotoxin emerged with an extra cysteine residue. A subsequent point substitution in unit-A enabled the β-bungarotoxin covalent linkage. The B. multicinctus gene expression, chromatin topological organization, and histone modification characteristics were featured by transcriptome, proteome, chromatin conformation capture sequencing, and ChIP-seq. The results highlighted that venom production was under a sophisticated regulation. Our findings provide new insights into snake neurotoxin research, meanwhile will facilitate antivenom development, toxin-driven drug discovery and the quality control of JinQianBaiHuaShe | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a Chromatin | |
| 650 | 4 | |a Gene regulation | |
| 650 | 4 | |a Medicinal snake | |
| 650 | 4 | |a Neurotoxin origin | |
| 700 | 1 | |a Guo, Shuai |e verfasserin |4 aut | |
| 700 | 1 | |a Yin, Xianmei |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Mingqian |e verfasserin |4 aut | |
| 700 | 1 | |a Su, He |e verfasserin |4 aut | |
| 700 | 1 | |a Liao, Xuejiao |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Qiushi |e verfasserin |4 aut | |
| 700 | 1 | |a Le, Liang |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Shiyu |e verfasserin |4 aut | |
| 700 | 1 | |a Liao, Baosheng |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Haoyu |e verfasserin |4 aut | |
| 700 | 1 | |a Lei, Juan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Yingjie |e verfasserin |4 aut | |
| 700 | 1 | |a Qiu, Xiaohui |e verfasserin |4 aut | |
| 700 | 1 | |a Luo, Lu |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Jun |e verfasserin |4 aut | |
| 700 | 1 | |a Cheng, Ruiyang |e verfasserin |4 aut | |
| 700 | 1 | |a Chang, Zhenzhan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Han |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Nicholas Chieh |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Yiming |e verfasserin |4 aut | |
| 700 | 1 | |a Hou, Dianyun |e verfasserin |4 aut | |
| 700 | 1 | |a Pei, Jin |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Jihai |e verfasserin |4 aut | |
| 700 | 1 | |a Hua, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Zhihai |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Shilin |e verfasserin |4 aut | |
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