Evidence map›Paper›PMID 34535171›Full record

ArticleChinese medicine2021

Hierarchical chromatin features reveal the toxin production in Bungarus multicinctus.

Xuejiao Liao, Shuai Guo, Xianmei Yin, Baosheng Liao, Mingqian Li, He Su, Qiushi Li, Jin Pei, Jihai Gao, Juan Lei and 4 more

Open access · goldAbstract read
In one paragraph

Article in Chinese medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 31% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
  3. Glutamine amelioratesThe journal of venomous animals and toxins including tropical diseases · 2023
    Article
  4. Genome assembly and annotation of the king ratsnake,GigaByte (Hong Kong, China) · 2023
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 4 institutions in 1 country.

Xuejiao Liao *Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.ORCID http://orcid.org/0000-0001-7101-9655
Shuai Guo *Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
Xianmei YinPharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
Baosheng LiaoInstitute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
Mingqian LiInstitute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
He SuGuangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510006, China.
Qiushi LiInstitute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
Jin PeiPharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
Jihai GaoPharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
Juan LeiCollege of Life Sciences, Beijing Normal University, Beijing, 100875, China.
Xiwen LiInstitute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
Zhihai HuangGuangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510006, China.
Jiang XuInstitute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China. jxu@icmm.ac.cn.
Shilin ChenInstitute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China. slchen@icmm.ac.cn.
Chinese Academy of Medical Sciences & Peking Union Medical College · CNChengdu University of Traditional Chinese Medicine · CNGuangdong Provincial Hospital of Traditional Chinese Medicine · CNBeijing Normal University · CN

Funding

the fundamental research funds for the central public welfare research institutes ZXKT19012the open research fund of chengdu university of traditional chinese medicine key laboratory of systematic research of distinctive chinese medicine resources in southwest china 2020GZ2011016
6 · The paper itself

Abstract

backgroundBungarus multicinctus, from which a classical Chinese medicine is produced, is known as the most venomous land snake in the world, but the chromatin organization and transcription factor activity during venom replenishment progress have not been explored yet. This study aimed to determine the roles of chromatin structure in toxin activity via bioinformatics and experimental validation.

methodsChromosome conformation capture (Hi-C) analysis was used to examine interactions among chromosomes and identify different scales of chromatin during envenomation in B. multicinctus. Correlations between epigenetic modifications and chromatin structure were verified through ChIP-seq analysis. RNA-seq was used to validate the influence of variation in chromatin structure and gene expression levels on venom production and regulation.

resultsOur results suggested that intra-chromosomal interactions are more intense than inter-chromosomal interactions among the control group, 3-day group of venom glands and muscles. Through this, we found that compartmental transition was correlated with chromatin interactions. Interestingly, the up-regulated genes in more compartmental switch regions reflect the function of toxin activity. Topologically associated domain (TAD) boundaries enriched with histone modifications are associated with different distributions of genes and the expression levels. Toxin-coding genes in the same loop are highly expressed, implying that the importance of epigenetic regulation during envenomination. On a smaller scale, the epigenetic markers affect transcriptional regulation by controlling the recruitment/inhibition of transcription initiation complexes.

conclusionsChromatin structure and epigenetic modifications could play a vital status role in the mechanisms of venom regulation in B. multicinctus.

Indexed as

Bungarus multicinctusChromatin interactionChromosome organizationHi-CHierarchical architecture

Identifiers

PMID34535171
PMCPMC8447776
OpenAlexW3201324524

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.