Evidence map›Paper›PMID 21460211›Full record

ArticleThe Journal of biological chemistry2011

High mannose-binding lectin with preference for the cluster of alpha1-2-mannose from the green alga Boodlea coacta is a potent entry inhibitor of HIV-1 and influenza viruses.

Yuichiro Sato, Makoto Hirayama, Kinjiro Morimoto, Naoki Yamamoto, Satomi Okuyama, Kanji Hori

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

47 citing papers in PubMed, 87 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. A Complex-TypeInternational journal of molecular sciences · 2024
    Article
  5. Review
  6. Review
  7. Antiviral Peptides as Anti-Influenza Agents.International journal of molecular sciences · 2022
    Review
  8. Review
  9. Review
  10. Lectins and lectibodies: potential promising antiviral agents.Cellular & molecular biology letters · 2022
    Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Review
  18. Review
  19. Review
  20. Review
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 3 institutions in 2 countries.

Yuichiro SatoFaculty of Pharmacy, Yasuda Women's University, Asaminami, Hiroshima, Japan.
Makoto Hirayama
Kinjiro Morimoto
Naoki Yamamoto
Satomi Okuyama
Kanji Hori
Hiroshima University · JPYasuda Women's University · JPNational University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The complete amino acid sequence of a lectin from the green alga Boodlea coacta (BCA), which was determined by a combination of Edman degradation of its peptide fragments and cDNA cloning, revealed the following: 1) B. coacta used a noncanonical genetic code (where TAA and TAG codons encode glutamine rather than a translation termination), and 2) BCA consisted of three internal tandem-repeated domains, each of which contains the sequence motif similar to the carbohydrate-binding site of Galanthus nivalis agglutinin-related lectins. Carbohydrate binding specificity of BCA was examined by a centrifugal ultrafiltration-HPLC assay using 42 pyridylaminated oligosaccharides. BCA bound to high mannose-type N-glycans but not to the complex-type, hybrid-type core structure of N-glycans or oligosaccharides from glycolipids. This lectin had exclusive specificity for α1-2-linked mannose at the nonreducing terminus. The binding activity was enhanced as the number of terminal α1-2-linked mannose substitutions increased. Mannobiose, mannotriose, and mannopentaose were incapable of binding to BCA. Thus, BCA preferentially recognized the nonreducing terminal α1-2-mannose cluster as a primary target. As predicted from carbohydrate-binding propensity, this lectin inhibited the HIV-1 entry into the host cells at a half-maximal effective concentration of 8.2 nm. A high association constant (3.71 × 10(8) M(-1)) of BCA with the HIV envelope glycoprotein gp120 was demonstrated by surface plasmon resonance analysis. Moreover, BCA showed the potent anti-influenza activity by directly binding to viral envelope hemagglutinin against various strains, including a clinical isolate of pandemic H1N1-2009 virus, revealing its potential as an antiviral reagent.

Indexed as

Amino Acid SequenceAnimalsCell LineChlorophytaDogsHIV-1HIV Envelope Protein gp120HumansInfluenza A Virus, H1N1 SubtypeMannoseMannose-Binding LectinsMolecular Sequence DataPlant ProteinsVirus InternalizationHIV Envelope Protein gp120MannoseMannose-Binding LectinsPlant Proteins

Identifiers

PMID21460211
PMCPMC3103324
OpenAlexW2018998607

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.