Evidence map›Paper›PMID 10468558›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1999

Purification, molecular cloning, and expression of 2-hydroxyphytanoyl-CoA lyase, a peroxisomal thiamine pyrophosphate-dependent enzyme that catalyzes the carbon-carbon bond cleavage during alpha-oxidation of 3-methyl-branched fatty acids.

V Foulon, V D Antonenkov, K Croes, E Waelkens, G P Mannaerts, P P Van Veldhoven, M Casteels

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

40 citing papers in PubMed, 114 citations in OpenAlex.

  1. Article
  2. Article
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  4. Article
  5. Sodium Metabisulfite InhibitsPathogens (Basel, Switzerland) · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Dysfunctional peroxisomal lipid metabolisms and their ocular manifestations.Frontiers in cell and developmental biology · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Peroxisomal Metabolite and Cofactor Transport in Humans.Frontiers in cell and developmental biology · 2020
    Review
  19. Article
  20. 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

7 authors at 1 institution in 1 country.

V FoulonDivision of Pharmacology, Department of Molecular Cell Biology, Katholieke Universiteit Leuven, Campus Gasthuisberg B-3000 Leuven, Belgium.
V D Antonenkov
K Croes
E Waelkens
G P Mannaerts
P P Van Veldhoven
M Casteels
KU Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the third step of the alpha-oxidation of 3-methyl-branched fatty acids such as phytanic acid, a 2-hydroxy-3-methylacyl-CoA is cleaved into formyl-CoA and a 2-methyl-branched fatty aldehyde. The cleavage enzyme was purified from the matrix protein fraction of rat liver peroxisomes and identified as a protein made up of four identical subunits of 63 kDa. Its activity proved to depend on Mg(2+) and thiamine pyrophosphate, a hitherto unrecognized cofactor of alpha-oxidation. Formyl-CoA and 2-methylpentadecanal were identified as reaction products when the purified enzyme was incubated with 2-hydroxy-3-methylhexadecanoyl-CoA as the substrate. Hence the enzyme catalyzes a carbon-carbon cleavage, and we propose calling it 2-hydroxyphytanoyl-CoA lyase. Sequences derived from tryptic peptides of the purified rat protein were used as queries to recover human expressed sequence tags from the databases. The composite cDNA sequence of the human lyase contained an ORF of 1,734 bases that encodes a polypeptide with a calculated molecular mass of 63,732 Da. Recombinant human protein, expressed in mammalian cells, exhibited lyase activity. The lyase displayed homology to a putative Caenorhabditis elegans protein that resembles bacterial oxalyl-CoA decarboxylases. Similarly to the decarboxylases, a thiamine pyrophosphate-binding consensus domain was present in the C-terminal part of the lyase. Although no peroxisome targeting signal, neither 1 nor 2, was apparent, transfection experiments with constructs encoding green fluorescent protein fused to the full-length lyase or its C-terminal pentapeptide indicated that the C terminus of the lyase represents a peroxisome targeting signal 1 variant.

Indexed as

Amino Acid SequenceAnimalsBase SequenceCaenorhabditis elegansCarbon-Carbon LyasesCell LineCloning, MolecularDatabases, FactualExpressed Sequence TagsHumansKineticsLiverMaleMiceMicrobodiesMolecular Sequence Data2-hydroxyphytanoyl-coenzyme A lyaseCarbon-Carbon LyasesRecombinant Fusion ProteinsRecombinant ProteinsThiamine Pyrophosphate

Identifiers

PMID10468558
PMCPMC17838
OpenAlexW2026114155

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.