Congenital generalized lipodystrophy (Homo sapiens)

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74164141244142112674111218717913, 15317111257, 10xxAdipogenesisCell cycle progressionDiseaseTranslocates FA to lipid dropletsAKT2TriacylglycerolCGL type 1DGAT1CGL type 4GPAT3PI3KDGAT2CGL type 2CGL type 3Integrin betaInsulinCongenital Generalized Lipodystrophy(CGL)IRS1GRB21, 172, 17168, 172, 171, 17Loss of lipid droplet formationLoss of metabolically active adipose tissueRAS-ERKHIF1ACAV1BSCL2FYNSeipinCAVIN1AGPAT2Glycerol-3-phosphateCAV1CAVIN1Phosphatidic acidDiacylglycerolLysophosphatidic acidLPIN3LPIN2LPIN1BindingPathwayInhibitionConversionGene/proteinMetaboliteTranscriptionCatalysisStimulationMethylatioinMMutationsLegendxx


Description

Congenital generalized lipodystrophy (CGL) is divided into four subtypes. Type 1 is mainly caused by mutations in AGPAT2 gene, subtype 2 by BSCL2 mutations, type 3 by CAV1 mutations and type 4 by CAVIN1 mutations. Patients with CGL show a near total absence of body fat which starts either at birth or shortly after. There are also metabolic abnormalities. Type 1 CGL shows loss of metabolically active adipose tissue. Type 2 CGL has a general absence of adipose tissue. Patients with type 3 CGL show vitamin D resistance, hypocalcemia, hypomagnesemia and have a short stature. Patients with type 4 CGL show myopathy, skeletal abnormalities, cardiac arrhythmias, pyloric stenosis and gastrointestinal motility problems.

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Bibliography

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  1. Cautivo KM, Lizama CO, Tapia PJ, Agarwal AK, Garg A, Horton JD, Cortés VA; ''AGPAT2 is essential for postnatal development and maintenance of white and brown adipose tissue.''; Mol Metab, 2016 PubMed Europe PMC Scholia
  2. Wary KK, Mariotti A, Zurzolo C, Giancotti FG; ''A requirement for caveolin-1 and associated kinase Fyn in integrin signaling and anchorage-dependent cell growth.''; Cell, 1998 PubMed Europe PMC Scholia
  3. Nwosu ZC, Ebert MP, Dooley S, Meyer C; ''Caveolin-1 in the regulation of cell metabolism: a cancer perspective.''; Mol Cancer, 2016 PubMed Europe PMC Scholia
  4. Wang H, Pilch PF, Liu L; ''Cavin-1/PTRF mediates insulin-dependent focal adhesion remodeling and ameliorates high-fat diet-induced inflammatory responses in mice.''; J Biol Chem, 2019 PubMed Europe PMC Scholia
  5. Sim MFM, Persiani E, Talukder MMU, Mcilroy GD, Roumane A, Edwardson JM, Rochford JJ; ''Oligomers of the lipodystrophy protein seipin may co-ordinate GPAT3 and AGPAT2 enzymes to facilitate adipocyte differentiation.''; Sci Rep, 2020 PubMed Europe PMC Scholia
  6. Gao M, Huang X, Song BL, Yang H; ''The biogenesis of lipid droplets: Lipids take center stage.''; Prog Lipid Res, 2019 PubMed Europe PMC Scholia
  7. Czech MP, Tencerova M, Pedersen DJ, Aouadi M; ''Insulin signalling mechanisms for triacylglycerol storage.''; Diabetologia, 2013 PubMed Europe PMC Scholia
  8. Akinci B, Sahinoz M, Oral E; ''Lipodystrophy Syndromes: Presentation and Treatment''; , 2000 PubMed Europe PMC Scholia
  9. Lightbourne M, Brown RJ; ''Genetics of Lipodystrophy.''; Endocrinol Metab Clin North Am, 2017 PubMed Europe PMC Scholia
  10. Driver T, Trivedi DK, McIntosh OA, Dean AP, Goodacre R, Pittman JK; ''Two Glycerol-3-Phosphate Dehydrogenases fromChlamydomonasHave Distinct Roles in Lipid Metabolism.''; Plant Physiol, 2017 PubMed Europe PMC Scholia
  11. McCubrey JA, Steelman LS, Chappell WH, Abrams SL, Wong EW, Chang F, Lehmann B, Terrian DM, Milella M, Tafuri A, Stivala F, Libra M, Basecke J, Evangelisti C, Martelli AM, Franklin RA; ''Roles of the Raf/MEK/ERK pathway in cell growth, malignant transformation and drug resistance.''; Biochim Biophys Acta, 2007 PubMed Europe PMC Scholia
  12. Song L, Liu Z, Hu HH, Yang Y, Li TY, Lin ZZ, Ye J, Chen J, Huang X, Liu DT, Zhou J, Shi Y, Zhao H, Xie C, Chen L, Song E, Lin SY, Lin SC; ''Proto-oncogene Src links lipogenesis via lipin-1 to breast cancer malignancy.''; Nat Commun, 2020 PubMed Europe PMC Scholia
  13. Chung J, Wu X, Lambert TJ, Lai ZW, Walther TC, Farese RV Jr; ''LDAF1 and Seipin Form a Lipid Droplet Assembly Complex.''; Dev Cell, 2019 PubMed Europe PMC Scholia
  14. Xu L, Wang L, Wen Z, Wu L, Jiang Y, Yang L, Xiao L, Xie Y, Ma M, Zhu W, Ye R, Liu X; ''Caveolin-1 is a checkpoint regulator in hypoxia-induced astrocyte apoptosis via Ras/Raf/ERK pathway.''; Am J Physiol Cell Physiol, 2016 PubMed Europe PMC Scholia
  15. Triantafyllou EA, Georgatsou E, Mylonis I, Simos G, Paraskeva E; ''Expression of AGPAT2, an enzyme involved in the glycerophospholipid/triacylglycerol biosynthesis pathway, is directly regulated by HIF-1 and promotes survival and etoposide resistance of cancer cells under hypoxia.''; Biochim Biophys Acta Mol Cell Biol Lipids, 2018 PubMed Europe PMC Scholia
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History

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CompareRevisionActionTimeUserComment
123625view08:24, 7 August 2022EgonwModified title
119172view06:38, 20 June 2021EgonwNot a mim-conversion
119091view06:42, 17 June 2021Fehrhartchanged a few unreviewed Uniprot IDs to something reviewed
119090view06:33, 17 June 2021FehrhartChecked and corrected a few interactions
118677view07:06, 1 June 2021UlasBabayigitOntology Term : 'congenital generalized lipodystrophy type 4' added !
118676view07:06, 1 June 2021UlasBabayigitOntology Term : 'congenital generalized lipodystrophy type 3' added !
118675view07:05, 1 June 2021UlasBabayigitOntology Term : 'congenital generalized lipodystrophy type 2' added !
118674view07:04, 1 June 2021UlasBabayigitOntology Term : 'congenital generalized lipodystrophy type 1' added !
118673view07:03, 1 June 2021UlasBabayigitOntology Term : 'disease pathway' added !
117969view11:01, 23 May 2021EweitzOntology Term : 'DOID:4' removed !
117968view11:01, 23 May 2021EweitzOntology Term : 'PW:0000001' removed !
117967view11:00, 23 May 2021EweitzModified title
117133view09:19, 18 May 2021UlasBabayigitCorrected data nodes
117118view07:10, 18 May 2021UlasBabayigitModified description
117117view06:54, 18 May 2021UlasBabayigitOntology Term : 'Pathway Ontology' added !
117116view06:54, 18 May 2021UlasBabayigitOntology Term : 'Disease' added !
117115view06:54, 18 May 2021UlasBabayigitOntology Term : 'congenital generalized lipodystrophy' added !
117114view06:52, 18 May 2021UlasBabayigitchanged legend
117087view06:31, 17 May 2021UlasBabayigitNew pathway

External references

DataNodes

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NameTypeDatabase referenceComment
AGPAT2GeneProductENSG00000169692 (Ensembl)
AKT2GeneProductENSG00000105221 (Ensembl)
BSCL2GeneProductENSG00000168000 (Ensembl)
CAV1GeneProductENSG00000105974 (Ensembl)
CAVIN1GeneProductENSG00000177469 (Ensembl)
CGL type 1Q32147669 (Wikidata)
CGL type 2Q32147684 (Wikidata)
CGL type 3Q32147698 (Wikidata)
CGL type 4Q32147713 (Wikidata)
Congenital Generalized Lipodystrophy (CGL)Q3242224 (Wikidata)
DGAT1GeneProductENSG00000185000 (Ensembl)
DGAT2GeneProductENSG00000062282 (Ensembl)
DiacylglycerolMetaboliteCHEBI:85682 (ChEBI)
FYNGeneProductENSG00000010810 (Ensembl)
GPAT3GeneProductENSG00000138678 (Ensembl)
GRB2GeneProductENSG00000177885 (Ensembl)
Glycerol-3-phosphateProteinA0A024R8I7 (Uniprot-TrEMBL)
HIF1AGeneProductENSG00000100644 (Ensembl)
IRS1GeneProductENSG00000169047 (Ensembl)
InsulinProteinA6XGL2 (Uniprot-TrEMBL)
Integrin betaProteinA0A024R8K7 (Uniprot-TrEMBL)
LPIN1GeneProductENSG00000134324 (Ensembl)
LPIN2GeneProductENSG00000101577 (Ensembl)
LPIN3GeneProductENSG00000132793 (Ensembl)
Lysophosphatidic acidMetaboliteChEMBL117021 (ChEMBL compound)
PI3KGeneProductENSG00000121879 (Ensembl)
Phosphatidic acidMetaboliteCHEBI:16337 (ChEBI)
RAS-ERKPathwayWP3853 (WikiPathways)
SeipinProteinF8WER0 (Uniprot-TrEMBL)
TriacylglycerolMetaboliteCHEBI:17855 (ChEBI)

Annotated Interactions

No annotated interactions

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