Evidence map›Paper›PMID 34407768›Full record

ArticleBMC microbiology2021

Construction and preservation of a stable and highly expressed recombinant Helicobacter pylori vacuolating cytotoxin A with apoptotic activity.

Ling-Zhi Yuan, Xiao Shi, Dan Tang, Shao-Peng Zheng, Zhi-Ming Xiao, Fen Wang

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 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
1.3field-weighted citation impact, top 20% 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, 9 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Transient recombinant expression of highly immunogenicBiotechnology reports (Amsterdam, Netherlands) · 2022
    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

6 authors at 1 institution in 1 country.

Ling-Zhi YuanDepartment of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China.
Xiao ShiDepartment of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China.
Dan TangDepartment of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China.
Shao-Peng ZhengDepartment of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China.
Zhi-Ming XiaoDepartment of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China.
Fen WangDepartment of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China. wfen-judy@csu.edu.cn.ORCID 0000-0002-1387-1126
Central South University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundH. pylori is closely related to the occurrence and development of various digestive gastritis, peptic ulcer and mucosa-associated lymphoid tissue (MALT) lymphoma. H. pylori is also a class I carcinogen of gastric cancer. VacA is the only exocrine toxin of H. pylori, which plays a very important role in the pathogenesis of H. pylori. The production of VacA in natural circumstances is complex with heavy workload and low yield. Therefore, it is very important to obtain recombinant VacA protein which is stable and biologically active. This study therefore aims to explore the expression, purification and stable storage of VacA toxin of H. pylori in E.coli, and to provide experimental basis for further exploration of the role of VacA in H. pylori -induced inflammation of cancer.

resultsA 2502-bp fragment and VacA gene were identified. An 89.7-kDa VacA

conclusionsA VacA recombinant protein that is stably and highly expressed and possesses pro-apoptotic activity is successfully constructed. The protein is stably preserved in 50 mM acetic acid buffer (pH 2.9).

Indexed as

ApoptosisBacterial ProteinsCell LineEpithelial CellsHelicobacter pyloriHumansRecombinant ProteinsVacuolesBacterial ProteinsRecombinant ProteinsVacA protein, Helicobacter pyloriApoptosisExpressionHelicobacter pyloriPreservationPurificationVacA recombinant protein

Identifiers

PMID34407768
PMCPMC8371779
OpenAlexW3195816276

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.