Evidence map›Paper›PMID 17557860›Full record

ArticleApplied and environmental microbiology2007

Production of recombinant beta-hexosaminidase A, a potential enzyme for replacement therapy for Tay-Sachs and Sandhoff diseases, in the methylotrophic yeast Ogataea minuta.

Hiromi Akeboshi, Yasunori Chiba, Yoshiko Kasahara, Minako Takashiba, Yuki Takaoka, Mai Ohsawa, Youichi Tajima, Ikuo Kawashima, Daisuke Tsuji, Kohji Itoh and 2 more

Open access · greenAbstract readEvaluation Study
In one paragraph

Article in Applied and environmental microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 60 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Therapeutic Strategies For Tay-Sachs Disease.Frontiers in pharmacology · 2022
    Review
  7. Article
  8. Article
  9. Journal of genetics · 2020
    Article
  10. Article
  11. Article
  12. New Approaches to Tay-Sachs Disease Therapy.Frontiers in physiology · 2018
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. 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

12 authors at 3 institutions in 1 country.

Hiromi AkeboshiResearch Center for Glycoscience, AIST Tsukuba Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki, Japan.
Yasunori Chiba
Yoshiko Kasahara
Minako Takashiba
Yuki Takaoka
Mai Ohsawa
Youichi Tajima
Ikuo Kawashima
Daisuke Tsuji
Kohji Itoh
Hitoshi Sakuraba
Yoshifumi Jigami
National Institute of Advanced Industrial Science and Technology · JPTokyo Metropolitan Institute of Medical Science · JPTokushima University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human beta-hexosaminidase A (HexA) is a heterodimeric glycoprotein composed of alpha- and beta-subunits that degrades GM2 gangliosides in lysosomes. GM2 gangliosidosis is a lysosomal storage disease in which an inherited deficiency of HexA causes the accumulation of GM2 gangliosides. In order to prepare a large amount of HexA for a treatment based on enzyme replacement therapy (ERT), recombinant HexA was produced in the methylotrophic yeast Ogataea minuta instead of in mammalian cells, which are commonly used to produce recombinant enzymes for ERT. The problem of antigenicity due to differences in N-glycan structures between mammalian and yeast glycoproteins was potentially resolved by using alpha-1,6-mannosyltransferase-deficient (och1Delta) yeast as the host. Genes encoding the alpha- and beta-subunits of HexA were integrated into the yeast cell, and the heterodimer was expressed together with its isozymes HexS (alphaalpha) and HexB (betabeta). A total of 57 mg of beta-hexosaminidase isozymes, of which 13 mg was HexA (alphabeta), was produced per liter of medium. HexA was purified with immobilized metal affinity column for the His tag attached to the beta-subunit. The purified HexA was treated with alpha-mannosidase to expose mannose-6-phosphate (M6P) residues on the N-glycans. The specific activities of HexA and M6P-exposed HexA (M6PHexA) for the artificial substrate 4MU-GlcNAc were 1.2 +/- 0.1 and 1.7 +/- 0.3 mmol/h/mg, respectively. The sodium dodecyl sulfate-polyacrylamide gel electrophoresis pattern suggested a C-terminal truncation in the beta-subunit of the recombinant protein. M6PHexA was incorporated dose dependently into GM2 gangliosidosis patient-derived fibroblasts via M6P receptors on the cell surface, and degradation of accumulated GM2 ganglioside was observed.

Indexed as

Amino Acid Sequencebeta-N-AcetylhexosaminidasesBiotechnologyCells, CulturedFibroblastsHexosaminidase AHexosaminidase BHumansMolecular Sequence DataRecombinant ProteinsSaccharomycetalesSandhoff DiseaseTay-Sachs Diseasebeta-N-AcetylhexosaminidasesHexosaminidase AHexosaminidase BRecombinant Proteins

Identifiers

PMID17557860
PMCPMC1951009
OpenAlexW2120914981

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.