Evidence map›Paper›PMID 16734431›Full record

ArticleBiochemistry2006

Acyl-CoA synthetase activity links wild-type but not mutant alpha-synuclein to brain arachidonate metabolism.

Mikhail Y Golovko, Thad A Rosenberger, Nils J Faergeman, Søren Feddersen, Nelson B Cole, Ingrid Pribill, Johannes Berger, Robert L Nussbaum, Eric J Murphy

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

50 citing papers in PubMed, 84 citations in OpenAlex.

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  12. Parkinson's Disease-Related Genes and Lipid Alteration.International journal of molecular sciences · 2021
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  13. The dysregulatedAging · 2021
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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

9 authors at 1 institution in 1 country.

Mikhail Y GolovkoDepartment of Pharmacology, Physiology, and Therapeutics, University of North Dakota, Grand Forks, North Dakota 58202-9037, USA.
Thad A Rosenberger
Nils J Faergeman
Søren Feddersen
Nelson B Cole
Ingrid Pribill
Johannes Berger
Robert L Nussbaum
Eric J Murphy
University of Southern Denmark · DK

Funding

TRPC1, CALCIUM AND PARKINSON'S DISEASEP20RR017699 · NCRR · UNIVERSITY OF NORTH DAKOTA · PI GROVE, BRYON D · 2002 to 2011
$19.7M
Brain lipid metabolism/alpha-synuclein gene-abated miceR21NS043697 · NINDS · UNIVERSITY OF NORTH DAKOTA · PI MURPHY, ERIC JAMES · 2002 to 2003
$384k
Intramural NIH HHSNCRR NIH HHS 1P20 RR17699-01NCRR NIH HHS P20 RR017699NINDS NIH HHS NS043697-01ANINDS NIH HHS R21 NS043697
6 · The paper itself

Abstract

Because alpha-synuclein (Snca) has a role in brain lipid metabolism, we determined the impact that the loss of alpha-synuclein had on brain arachidonic acid (20:4n-6) metabolism in vivo using Snca-/- mice. We measured [1-(14)C]20:4n-6 incorporation and turnover kinetics in brain phospholipids using an established steady-state kinetic model. Liver was used as a negative control, and no changes were observed between groups. In Snca-/- brains, there was a marked reduction in 20:4n-6-CoA mass and in microsomal acyl-CoA synthetase (Acsl) activity toward 20:4n-6. Microsomal Acsl activity was completely restored after the addition of exogenous wild-type mouse or human alpha-synuclein, but not by A30P, E46K, and A53T forms of alpha-synuclein. Acsl and acyl-CoA hydrolase expression was not different between groups. The incorporation and turnover of 20:4n-6 into brain phospholipid pools were markedly reduced. The dilution coefficient lambda, which indicates 20:4n-6 recycling between the acyl-CoA pool and brain phospholipids, was increased 3.3-fold, indicating more 20:4n-6 was entering the 20:4n-6-CoA pool from the plasma relative to that being recycled from the phospholipids. This is consistent with the reduction in Acsl activity observed in the Snca-/- mice. Using titration microcalorimetry, we determined that alpha-synuclein bound free 20:4n-6 (Kd = 3.7 microM) but did not bind 20:4n-6-CoA. These data suggest alpha-synuclein is involved in substrate presentation to Acsl rather than product removal. In summary, our data demonstrate that alpha-synuclein has a major role in brain 20:4n-6 metabolism through its modulation of endoplasmic reticulum-localized acyl-CoA synthetase activity, although mutant forms of alpha-synuclein fail to restore this activity.

Indexed as

alpha-SynucleinAnimalsArachidonic AcidBrainCoenzyme A LigasesEndoplasmic ReticulumMiceMice, Mutant StrainsMicrosomesMutationalpha-SynucleinArachidonic AcidCoenzyme A Ligases

Identifiers

PMID16734431
PMCPMC2532510
OpenAlexW2029101691

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.