Evidence map›Paper›PMID 24879803›Full record

ArticleJournal of lipid research2014

Comparative gene identification 58/α/β hydrolase domain 5 lacks lysophosphatidic acid acyltransferase activity.

Derek McMahon, Anna Dinh, Daniel Kurz, Dharika Shah, Gil-Soo Han, George M Carman, Dawn L Brasaemle

Open access · hybridAbstract read
In one paragraph

Article in Journal of lipid research, 2014. 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
2.9field-weighted citation impact, top 10% 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, 26 citations in OpenAlex.

  1. Article
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  7. Article
  8. Identification of an intrinsic lysophosphatidic acid acyltransferase activity in the lipolytic inhibitor GFASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  9. Adipose Triglyceride Lipase Regulation: An Overview.Current protein & peptide science · 2018
    Review
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  11. Article
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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

7 authors at 2 institutions in 2 countries.

Derek McMahonRutgers Center for Lipid Research and Department of Nutritional Sciences and Rutgers Center for Lipid Research and Department of Food Science.
Anna DinhRutgers Center for Lipid Research and Department of Nutritional Sciences and Rutgers Center for Lipid Research and Department of Food Science.
Daniel KurzRutgers Center for Lipid Research and Department of Nutritional Sciences and Rutgers Center for Lipid Research and Department of Food Science.
Dharika ShahRutgers Center for Lipid Research and Department of Nutritional Sciences and Rutgers Center for Lipid Research and Department of Food Science.
Gil-Soo HanRutgers, The State University of New Jersey, New Brunswick, NJ 08901.
George M CarmanRutgers, The State University of New Jersey, New Brunswick, NJ 08901.
Dawn L BrasaemleRutgers Center for Lipid Research and Department of Nutritional Sciences and Rutgers Center for Lipid Research and Department of Food Science.
Rutgers Sexual and Reproductive Health and Rights · NLRutgers, The State University of New Jersey · US

Funding

Phospholipid metabolism and membrane functionR37GM028140 · NIGMS · RUTGERS, THE STATE UNIV OF N.J. · PI CARMAN, GEORGE M. · 2010 to 2019
$4.0M
PERILIPINS AND CELLULAR TRIACYLGLYCEROL METABOLISMR01DK054797 · NIDDK · RUTGERS THE ST UNIV OF NJ NEW BRUNSWICK · PI BRASAEMLE, DAWN L · 2000 to 2014
$3.9M
NIDDK NIH HHS R01 DK054797NIGMS NIH HHS R37 GM028140
6 · The paper itself

Abstract

Mutations in the gene encoding comparative gene identification 58 (CGI-58)/α/β hydrolase domain 5 (ABHD5) cause Chanarin-Dorfman syndrome, characterized by excessive triacylglycerol storage in cells and tissues. CGI-58 has been identified as a coactivator of adipose TG lipase (ATGL) and a lysophosphatidic acid acyltransferase (LPAAT). We developed a molecular model of CGI-58 structure and then mutated predicted active site residues and performed LPAAT activity assays of recombinant WT and mutated CGI-58. When mutations of predicted catalytic residues failed to reduce LPAAT activity, we determined that LPAAT activity was due to a bacterial contaminant of affinity purification procedures, plsC, the sole LPAAT in Escherichia coli Purification protocols were optimized to reduce plsC contamination, in turn reducing LPAAT activity. When CGI-58 was expressed in SM2-1(DE3) cells that lack plsC, lysates lacked LPAAT activity. Additionally, mouse CGI-58 expressed in bacteria as a glutathione-S-transferase fusion protein and human CGI-58 expressed in yeast lacked LPAAT activity. Previously reported lipid binding activity of CGI-58 was revisited using protein-lipid overlays. Recombinant CGI-58 failed to bind lysophosphatidic acid, but interestingly, bound phosphatidylinositol 3-phosphate [PI(3)P] and phosphatidylinositol 5-phosphate [PI(5)P]. Prebinding CGI-58 with PI(3)P or PI(5)P did not alter its coactivation of ATGL in vitro. In summary, purified recombinant CGI-58 that is functional as an ATGL coactivator lacks LPAAT activity.

Indexed as

1-Acylglycerol-3-Phosphate O-AcyltransferaseAcyltransferasesAnimalsHumansLysophospholipidsMiceProtein DomainsRecombinant Proteins1-Acylglycerol-3-Phosphate O-Acyltransferase2-acylglycerophosphate acyltransferaseABHD5 protein, humanAbhd5 protein, mouseAcyltransferaseslysophosphatidic acidLysophospholipidsRecombinant Proteinsadipose triglyceride lipaseChanarin-Dorfman syndromeneutral lipid storage disorderphosphatidylinositol 3-phosphatephosphatidylinositol 5-phosphate

Identifiers

PMID24879803
PMCPMC4109769
OpenAlexW2105585750

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.