Evidence map›Paper›PMID 36622162›Full record

ReviewEcoSal Plus2023

Repeat-Unit Elongations To Produce Bacterial Complex Long Polysaccharide Chains, an O-Antigen Perspective.

Yaoqin Hong, Dalong Hu, Anthony D Verderosa, Jilong Qin, Makrina Totsika, Peter R Reeves

Abstract readReview
In one paragraph

Review in EcoSal Plus, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

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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.

Yaoqin HongCentre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia.ORCID 0000-0002-4408-2648
Dalong HuSaw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.ORCID 0000-0003-2047-2868
Anthony D VerderosaCentre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia.ORCID 0000-0002-0549-6565
Jilong QinCentre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia.ORCID 0000-0002-5867-6332
Makrina TotsikaCentre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia.ORCID 0000-0003-2468-0293
Peter R ReevesSchool of Life and Environmental Sciences, The University of Sydney, Camperdown, New South Wales, Australia.ORCID 0000-0003-4479-7974

Funding

Clive and Vera Ramaciotti Foundations 2017HIG0119Department of Education and Training | Australian Research Council (ARC) DP190101613DHAC | National Health and Medical Research Council (NHMRC) GNT1144046Queensland University of Technology (QUT)
6 · The paper itself

Abstract

The O-antigen, a long polysaccharide that constitutes the distal part of the outer membrane-anchored lipopolysaccharide, is one of the critical components in the protective outer membrane of Gram-negative bacteria. Most species produce one of the structurally diverse O-antigens, with nearly all the polysaccharide components having complex structures made by the Wzx/Wzy pathway. This pathway produces repeat-units of mostly 3-8 sugars on the cytosolic face of the cytoplasmic membrane that is translocated by Wzx flippase to the periplasmic face and polymerized by Wzy polymerase to give long-chain polysaccharides. The Wzy polymerase is a highly diverse integral membrane protein typically containing 10-14 transmembrane segments. Biochemical evidence confirmed that Wzy polymerase is the sole driver of polymerization, and recent progress also began to demystify its interacting partner, Wzz, shedding some light to speculate how the proteins may operate together during polysaccharide biogenesis. However, our knowledge of how the highly variable Wzy proteins work as part of the O-antigen processing machinery remains poor. Here, we discuss the progress to the current understanding of repeat-unit polymerization and propose an updated model to explain the formation of additional short chain O-antigen polymers found in the lipopolysaccharide of diverse Gram-negative species and their importance in the biosynthetic process.

Indexed as

Bacterial ProteinsO AntigensGram-Negative BacteriaLipopolysaccharidesPolysaccharides, BacterialBacterial ProteinsLipopolysaccharidesO AntigensPolysaccharides, Bacterialcapsulecell envelopelipopolysaccharideO-antigenpolysaccharide elongationWzxWzy-dependent pathwayWzy polymeraseWzz

Identifiers

PMID36622162
PMCPMC10729934

What OpenQuestion holds

Textmetadata
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.