| 1997 |
CDS2 (CDP-diacylglycerol synthetase 2) was identified as a second human CDS enzyme in the EST database. Overexpression of CDS1 or PIS1 alone or in combination did not enhance the rate of phosphatidylinositol biosynthesis, indicating that the levels of CDS1 and PIS1 protein expression are not critical determinants of cellular PI content. |
cDNA cloning from EST database, COS-7 cell overexpression, phospholipid metabolic assays |
The Journal of biological chemistry |
Medium |
9407135
|
| 1998 |
Two human CDP-diacylglycerol synthase genes, CDS1 and CDS2, were cloned and localized to chromosomes 4q21 and 20p13, respectively, by radiation hybrid panel mapping and FISH. |
cDNA cloning, radiation hybrid panel mapping, fluorescence in situ hybridization |
Genomics |
Medium |
9806839
|
| 1999 |
Human CDS2 was identified as a mammalian homolog of Drosophila CDS, encoding CDP-diacylglycerol synthase. Mouse Cds2 (but not Cds1) showed high expression in differentiating neuroblasts of the neural retina and CNS during embryonic development, with no detection in adult retina, while Cds1 was highly expressed in the photoreceptor layer of adult retina. |
Bioinformatic identification, cDNA isolation and sequencing, RNA in situ hybridization on mouse tissue sections |
Genomics |
Medium |
9889000
|
| 2003 |
CDS-2 activity and mRNA level in mouse heart were elevated by PPARα activation (clofibrate feeding) in vivo; in PPARα-null mice, clofibrate feeding did not alter CDS-2 activity or mRNA level, confirming CDS-2 is regulated by PPARα activation. CDS-2 activity was not affected by clofibrate in H9c2 cells in vitro, indicating alternative regulation in vivo versus cultured cells. |
In vivo clofibrate treatment, PPARα-null mouse model, enzyme activity assays, mRNA quantification |
Journal of lipid research |
Medium |
14594999
|
| 2005 |
Murine Cds1 and Cds2 proteins, when transiently transfected with epitope tags, were both associated with the endoplasmic reticulum. Cds2 shows ubiquitous expression while Cds1 shows restricted expression including in photoreceptor inner segments. |
Transient transfection of epitope-tagged proteins, subcellular localization by immunofluorescence, RNA in situ hybridization |
Gene |
Medium |
16023307
|
| 2010 |
Knockdown of CDS-2 (via shRNA) disrupted cardiolipin biosynthesis and eliminated mitomycin C-induced translocation of p53 to mitochondria, as well as reducing mitochondrial distribution of Bcl-xL and Bcl-2, placing CDS2-dependent cardiolipin synthesis upstream of mitochondrial p53 localization and apoptosis regulation. |
shRNA knockdown of CDS-2, immunofluorescence for mitochondrial p53 localization, Western blot for Bcl-xL/Bcl-2 |
Neoplasia (New York, N.Y.) |
Medium |
20126473
|
| 2016 |
Knockdown of CDS2 (or CDS1) resulted in formation of giant/supersized lipid droplets in cultured mammalian cells and dramatically increased PA levels in the endoplasmic reticulum. Depleting CDS2 had a moderate inhibitory effect on 3T3-L1 preadipocyte differentiation. The increase in ER PA levels upon CDS2 knockdown suggests PA accumulation underlies the lipid droplet phenotype. |
siRNA knockdown, lipid droplet imaging, phospholipid mass spectrometry, adipocyte differentiation assay |
Journal of lipid research |
High |
26946540
|
| 2017 |
Mitochondrial CDP-diacylglycerol synthase activity was found to be due to TAMM41 (a peripheral mitochondrial protein), not CDS1 or CDS2 (integral membrane proteins). CDS1 and CDS2 are localized to the endoplasmic reticulum, not mitochondria. |
Subcellular fractionation, Western blot, TAMM41 knockdown, enzyme activity assays, H9c2 differentiation |
Biochimica et biophysica acta. Molecular and cell biology of lipids |
High |
29253589
|
| 2018 |
p53 physically interacts with SIRT6 in vitro and in vivo, and together they bind the promoters of CDS1 and CDS2 to enhance cardiolipin de novo biosynthesis; SIRT6 acts as a co-activator of p53, recruiting RNA polymerase II to CDS1 and CDS2 promoters in response to palmitic acid treatment. |
Co-immunoprecipitation, chromatin immunoprecipitation (ChIP), in vitro binding assay, cardiolipin biosynthesis assay |
Cell death & disease |
Medium |
30237540
|
| 2019 |
Genetic ablation of CDS2 in zebrafish and mice switched VEGFA signaling output from promoting angiogenesis to inducing vessel regression. Mechanistically, VEGFA stimulation in CDS2-null endothelium reduced PIP2 availability, causing PIP3 deficiency and FOXO1 activation, which triggered endothelial regression. Re-expression experiments and live imaging confirmed this mechanism. |
Zebrafish cds2 mutant, mouse conditional knockout, live imaging, PIP2/PIP3 quantification, FOXO1 localization, tumor implantation models |
Cell research |
High |
31501519
|
| 2019 |
CDS2, but not CDS1, contributes to increased PI resynthesis during PLC activation and preferentially routes arachidonoyl-enriched PA species toward PI synthesis, contributing to maintenance of the unique fatty acid profile of phosphoinositide lipids. |
siRNA knockdown, stable isotope labeling with 13C-glucose, LC-MS lipid analysis |
EMBO reports |
Medium |
35712788
|
| 2019 |
CDS2-deficient lipid droplet phenotype is rescued by reducing DGAT2 or GPAT4 expression (but not by reducing CIDEC), while CDS1-deficient LD phenotype is rescued by CIDEC knockdown (but not DGAT2/GPAT4), demonstrating that CDS1 and CDS2 regulate lipid droplet growth through distinct mechanisms. CDS2 deficiency promoted LD association of DGAT2 and GPAT4 and impaired initial LD maturation. CDS2 had a stronger effect on PA levels at the LD surface. |
siRNA knockdown, CRISPR/Cas9 knockout, immunofluorescence, fluorescence microscopy, lipidomics |
The Journal of biological chemistry |
High |
31548309
|
| 2019 |
Vasopressin selectively stimulates an increase in CDS1 (not CDS2) mRNA in H9c2 cardiomyoblasts, mediated through phospholipase C, protein kinase C, and cFos (AP-1); this mechanism provides upregulation of PI resynthesis specifically through CDS1 during sustained PLC signaling. |
RT-qPCR, AP-1 inhibitor (T-5224), PKC inhibitor, Western blot for cFos |
Biochimica et biophysica acta. Molecular and cell biology of lipids |
Medium |
30862571
|
| 2020 |
CDS enzymes CDS1 and CDS2 are ancient integral membrane proteins localized to the ER in mammals, providing CDP-DAG for PI synthesis; CDS2 is suggested to be the major CDS for phosphoinositide recycling during PLC signaling based on reviewed experimental evidence. |
Review synthesizing localization and functional data from multiple experimental studies |
Frontiers in cell and developmental biology |
Medium |
32117988
|
| 2021 |
Liver-specific Cds2 deficiency in mice provoked hepatic steatosis, inflammation and fibrosis. CDS2 is enriched in mitochondria-associated membranes (MAMs). Hepatic Cds2 deficiency impaired mitochondrial function and decreased mitochondrial PE levels. Overexpression of phosphatidylserine decarboxylase (PISD) alleviated the NASH-like phenotype and mitochondrial dysfunction caused by CDS2 deficiency. PPARα agonist treatment also attenuated mitochondrial defects. Cds2 overexpression protected against high-fat diet-induced hepatic steatosis. |
Liver-specific conditional knockout (Cds2f/f;AlbCre), mitochondrial fractionation, lipidomics, PISD overexpression rescue, electron microscopy, PPARα agonist treatment, Cds2 overexpression |
Science bulletin |
High |
36546079
|
| 2024 |
Genetic deletion of CDS2 in primary mouse macrophages resulted in modest changes in steady-state PI levels but substantial increases in PA, CDP-DG, DG, and TG. Stable isotope labeling showed CDS2 loss caused minimal reduction in basal de novo PI synthesis rate but substantially increased de novo PA synthesis from glycerol-3-phosphate (G3P). Under sustained GPCR-stimulated PLC conditions, CDS2-deficient macrophages could not maintain enhanced PI synthesis via the 'PI cycle', leading to substantial PI loss. CDS2-deficient macrophages exhibited defects in calcium homeostasis unrelated to PLC activation. |
CRISPR/Cas9 deletion, stable isotope labeling (13C6- and 13C6D7-glucose), LC-MS lipidomics, GPCR stimulation assays, calcium imaging |
The Biochemical journal |
High |
39312194
|
| 2025 |
CDS2 is a synthetic lethal dependency in uveal melanoma and other tumor types with low CDS1 expression. CDS2 knockout in low-CDS1 cancer cells disrupted phosphoinositide synthesis, increased cellular apoptosis, and re-expression of CDS1 rescued this cell fitness defect, establishing CDS1/CDS2 as a functionally redundant synthetic lethal pair. The synthetic lethality was validated in vivo. |
CRISPR-Cas9 screening (single-gene and combinatorial paired-gene libraries), CDS1 re-expression rescue, in vivo xenograft models, pan-cancer data analysis |
Nature genetics |
High |
40615675
|
| 2025 |
CDS2 essentiality in mesenchymal-like cancers with low/absent CDS1 expression is mechanistically driven by CDS2 dosage and catalytic activity (not a scaffolding role). CDS1-CDS2 synthetic lethality is accompanied by disruption of lipid homeostasis including accumulation of cholesterol esters and triglycerides, and apoptosis. Genome-wide CRISPR knockout screens identified no common escape mechanism, indicating robustness of the interaction. |
Computational SLI analysis, CRISPR-Cas9 knockout screens, catalytic mutant rescue experiments, lipidomics, apoptosis assays |
Nature genetics |
High |
40615674
|
| 2025 |
Under physiological conditions, MBOAT7 interacts with CDS2 at the endoplasmic reticulum to maintain lipid metabolic homeostasis. Disruption of this interaction (via CDS2 knockdown or loss of function) triggers adaptive translocation of MBOAT7 to ER-lipid droplet contact sites in a RAB1-dependent manner, where it inhibits DGAT2-mediated lipid droplet growth and promotes lipolysis. |
Co-immunoprecipitation, confocal microscopy, siRNA knockdown, RAB1 manipulation, lipid droplet assays |
bioRxivpreprint |
Medium |
bio_10.1101_2025.08.26.672501
|