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PEX5 Regulates Autophagy Via the Mtorc1-TFEB Axis During Starvation
Eun et al. Experimental & Molecular Medicine (2018) 50:4 DOI 10.1038/s12276-017-0007-8 Experimental & Molecular Medicine ARTICLE Open Access PEX5 regulates autophagy via the mTORC1-TFEB axis during starvation So Young Eun1,JoonNoLee2,In-KooNam2, Zhi-qiang Liu1,Hong-SeobSo 1, Seong-Kyu Choe1 and RaeKil Park2 Abstract Defects in the PEX5 gene impair the import of peroxisomal matrix proteins, leading to nonfunctional peroxisomes and other associated pathological defects such as Zellweger syndrome. Although PEX5 regulates autophagy process in a stress condition, the mechanisms controlling autophagy by PEX5 under nutrient deprivation are largely unknown. Herein, we show a novel function of PEX5 in the regulation of autophagy via Transcription Factor EB (TFEB). Under serum-starved conditions, when PEX5 is depleted, the mammalian target of rapamycin (mTORC1) inhibitor TSC2 is downregulated, which results in increased phosphorylation of the mTORC1 substrates, including 70S6K, S6K, and 4E- BP-1. mTORC1 activation further suppresses the nuclear localization of TFEB, as indicated by decreased mRNA levels of TFEB, LIPA, and LAMP1. Interestingly, peroxisomal mRNA and protein levels are also reduced by TFEB inactivation, indicating that TFEB might control peroxisome biogenesis at a transcriptional level. Conversely, pharmacological inhibition of mTOR resulting from PEX5 depletion during nutrient starvation activates TFEB by promoting nuclear localization of the protein. In addition, mTORC1 inhibition recovers the damaged-peroxisome biogenesis. These data suggest that PEX5 may be a critical regulator of lysosomal gene expression and autophagy through the mTOR-TFEB- autophagy axis under nutrient deprivation. 1234567890():,; 1234567890():,; Introduction Mitochondrial antiviral-signaling protein (MAVS) func- Peroxisome is an essential cellular organelle for per- tions as an antiviral signaling platform to induce the forming various metabolic activities, including oxidation interferon-independent signaling pathways4. -
Figure S1. Quality Control Validation of MS Data. (A‑C) Mass Error Distribution of All Peptides Identified in the Acetylome
Figure S1. Quality control validation of MS data. (A‑C) Mass error distribution of all peptides identified in the acetylome, succi- nylome and quantitative proteome, respectively. (D‑F) Length distribution of peptides identified in the acetylome, succinylome and quantitative proteome, respectively. Figure S2. Comparison of modification level between breast cancer tissue and normal tissue. Comparison of acetylation level (A) and succinylation level (B) between breast cancer tissue and normal tissue. Data are medians and were analyzed using Wilcoxon Signed Rank Test. **P<0.01. Table SI. Protein sites whose acetylation and succinylation levels were both significantly upregulated in breast cancer tissues (fold change ≥1.5 compared with normal tissues). Protein ID Protein name Modification site P54868 HMCS2 310K Q15063 POSTN 549K Q99715 COCA1 1601K P51572 BAP31 72K P07237 PDLA1 328K Q06830 PRDX1 192K P48735 IDHP 180K P30101 PDIA3 417K P0DMV9 HS71B 526K Q01995 TAGL 21K P06748 NPM1 27K Q00325 MPCP 209K P00488 F13A 69K P02545 LMNA 260K P08133 ANXA6 478K P02452 CO1A1 751K Table SII. Protein sites whose acetylation and succinylation levels were both significantly downregulated in breast cancer tissues (fold change ≥1.5 compared with normal tissues). Protein ID Protein name Modification site RET4 P02753 30K PSG2 P07585 142K HBA P69905 12K IGKC P01834 80K HBA P69905 8K Table SIII. All proteins whose expression level were significantly upregulated in breast cancer tissues (fold change ≥1.5 compared with normal tissues). Protein ID Protein description -
Molecular Analysis of the Aldolase B Gene in Patients with Hereditary
1of8 J Med Genet: first published as 10.1136/jmg.39.9.e56 on 1 September 2002. Downloaded from ONLINE MUTATION REPORT Molecular analysis of the aldolase B gene in patients with hereditary fructose intolerance from Spain J C Sánchez-Gutiérrez, T Benlloch, M A Leal, B Samper, I García-Ripoll, J E Felíu ............................................................................................................................. J Med Genet 2002;39:e56 (http://www.jmedgenet.com/cgi/content/full/39/9/e56) ereditary fructose intolerance (HFI) is an autosomal resident in the following regions: Madrid (11 families), Anda- recessive metabolic disorder caused by aldolase (fructo- lusia (4), Galicia (3), Estremadura (1), Valencia (1), and Hsediphosphate aldolase, EC 4.1.2.13) B deficiency.1 The Spanish possessions in North Africa (1). HFI diagnosis was B isoform of aldolase is critical for the metabolism of based on enzymatic studies (deficient aldolase B activity in exogenous fructose by the liver, kidney, and intestine, since it hepatic biopsies from 16 patients) or clinical symptoms (six can use fructose-1-phosphate as substrate at physiological patients). Another six subjects were suspected to suffer from concentrations, unlike aldolases A and C. Affected subjects HFI on the basis of dietary intolerance with episodes sugges- suffer abdominal pain, vomiting, and hypoglycaemia after the tive of hypoglycaemia and occurrence of the disease in their ingestion of fructose, sucrose, or sorbitol. Continued ingestion first degree relatives. of noxious sugars causes hepatic and renal injury, which eventually leads to liver cirrhosis and sometimes death, Reagents particularly in small infants.1 Treatment consists of strict Thermostable DNA polymerase, deoxynucleotides, and gen- elimination of fructose, sucrose, and sorbitol from the diet eral PCR products were from Biotools (Madrid, Spain). -
Type of the Paper (Article
Supplementary Material A Proteomics Study on the Mechanism of Nutmeg-induced Hepatotoxicity Wei Xia 1, †, Zhipeng Cao 1, †, Xiaoyu Zhang 1 and Lina Gao 1,* 1 School of Forensic Medicine, China Medical University, Shenyang 110122, P. R. China; lessen- [email protected] (W.X.); [email protected] (Z.C.); [email protected] (X.Z.) † The authors contributed equally to this work. * Correspondence: [email protected] Figure S1. Table S1. Peptide fraction separation liquid chromatography elution gradient table. Time (min) Flow rate (mL/min) Mobile phase A (%) Mobile phase B (%) 0 1 97 3 10 1 95 5 30 1 80 20 48 1 60 40 50 1 50 50 53 1 30 70 54 1 0 100 1 Table 2. Liquid chromatography elution gradient table. Time (min) Flow rate (nL/min) Mobile phase A (%) Mobile phase B (%) 0 600 94 6 2 600 83 17 82 600 60 40 84 600 50 50 85 600 45 55 90 600 0 100 Table S3. The analysis parameter of Proteome Discoverer 2.2. Item Value Type of Quantification Reporter Quantification (TMT) Enzyme Trypsin Max.Missed Cleavage Sites 2 Precursor Mass Tolerance 10 ppm Fragment Mass Tolerance 0.02 Da Dynamic Modification Oxidation/+15.995 Da (M) and TMT /+229.163 Da (K,Y) N-Terminal Modification Acetyl/+42.011 Da (N-Terminal) and TMT /+229.163 Da (N-Terminal) Static Modification Carbamidomethyl/+57.021 Da (C) 2 Table S4. The DEPs between the low-dose group and the control group. Protein Gene Fold Change P value Trend mRNA H2-K1 0.380 0.010 down Glutamine synthetase 0.426 0.022 down Annexin Anxa6 0.447 0.032 down mRNA H2-D1 0.467 0.002 down Ribokinase Rbks 0.487 0.000 -
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Research Article Glutathione Transferase P Plays a Critical Role in the Development of Lung Carcinogenesis following Exposure to Tobacco-Related Carcinogens and Urethane Kenneth J. Ritchie,1 Colin J. Henderson,1 Xiu Jun Wang,1 Olga Vassieva,1 Dianne Carrie,1 Peter B. Farmer,2 Margaret Gaskell,2 Kevin Park,3 and C. Roland Wolf1 1Cancer Research UK Molecular Pharmacology Unit, Biomedical Research Centre, Ninewells Hospital and Medical School, Dundee, United Kingdom; 2Cancer Biomarkers and Prevention Group, Biocentre, University of Leicester, Leicester, United Kingdom;and 3Department of Pharmacology and Therapeutics, University of Liverpool, Liverpool, United Kingdom Abstract family of dimeric enzymes (EC 2.5.1.18;GST a, A, k, u, j, ~, n, and N) Human cancer is controlled by a complex interaction between identified on the basis of their amino acid sequence and substrate genetic and environmental factors. Such environmental specificity (4). GSTs are regarded as being important detoxification factors are well defined for smoking-induced lung cancer; enzymes due to their capacity to catalyze the addition of reduced however, the roles of specific genes have still to be elucidated. glutathione (GSH) to reactive electrophiles produced by cyto- Glutathione transferase P (GSTP) catalyzes the detoxification chrome P450 metabolism. As a consequence, there has been a of electrophilic diol epoxides produced by the metabolism of significant interest in elucidating the relationship between GSTP polycyclic aromatic hydrocarbons such as benzo[a]pyrene function and resistance to cancer chemotherapeutic agents and the development of cancer (5–7). In a genetic approach to study GST (BaP), a common constituent of tobacco smoke. Activity- altering polymorphisms in Gstp have therefore been speculated functions, we have generated mice nulled at the Gstp gene locus to be potential risk modifiers in lung cancer development. -
Aldolase C (C-Terminus Specific) Data Sheet
Aldolase C (C-terminus Specific) Data Sheet Catalog Number: MO22157 Host: Mouse Product Type: Monoclonal IgG1 Species Human, horse, cow, pig, Affinity Purified Antibody Reactivity: chicken, rat, mouse Immunogen Sequence: C-terminal sequence Format: Liquid, 100 ul aliquot KYEGSGEDGGAAAQSLYIANHAY Concentration: 1 mg/ml HGNC name for this protein is ALDOC Applications: Immunofluorescence/Immunocytochemistry: 1:500-1:1,000 Immunohistochemistry: 1: 500-1:1,000 Western Blot: 1:1,000 Dilutions listed as a recommendation. Optimal dilution should be determined by investigator. Storage: Antibody can also be aliquoted and stored frozen at -20° C to -70° C in a manual defrost freezer for six months without detectable loss of activity. The antibody can be stored at 2° - 8° C for 1 month without detectable loss of activity. Avoid repeated freeze-thaw cycles. Application Notes Description/Data: Aldolase A is generally considered to be a muscle enzyme. Northern analysis of cultured cells suggests that it is present in both neurons and glia. Aldolase C shares 81% amino acid identity with aldolase A and 70% identity with aldolase B. Earlier studies using isozyme-specific antibodies report its location in gray matter astrocytes and cells of the pia mater. In situ hybridization of mouse central nervous system using isozyme-specific probes revealed that aldolase A and C are expressed in complementary cell types: aldolase A mRNA is found in neurons; aldolase C message is detected in astrocytes, some cells of the pia mater, and Purkinje cells. Aldolase C can in some situations be used as an astrocyte marker. However Purkinje cells of the cerebellum contain high levels of the enzyme, so the enzyme is not totally astrocyte specific. -
Supplemental Materials Supplemental Table 1
Electronic Supplementary Material (ESI) for RSC Advances. This journal is © The Royal Society of Chemistry 2016 Supplemental Materials Supplemental Table 1. The differentially expressed proteins from rat pancreas identified by proteomics (SAP vs. SO) No. Protein name Gene name ratio P value 1 Metallothionein Mt1m 3.35 6.34E-07 2 Neutrophil antibiotic peptide NP-2 Defa 3.3 8.39E-07 3 Ilf2 protein Ilf2 3.18 1.75E-06 4 Numb isoform o/o rCG 3.12 2.73E-06 5 Lysozyme Lyz2 3.01 5.63E-06 6 Glucagon Gcg 2.89 1.17E-05 7 Serine protease HTRA1 Htra1 2.75 2.97E-05 8 Alpha 2 macroglobulin cardiac isoform (Fragment) 2.75 2.97E-05 9 Myosin IF (Predicted) Myo1f 2.65 5.53E-05 10 Neuroendocrine secretory protein 55 Gnas 2.61 7.60E-05 11 Matrix metallopeptidase 8 Mmp8 2.57 9.47E-05 12 Protein Tnks1bp1 Tnks1bp1 2.53 1.22E-04 13 Alpha-parvin Parva 2.47 1.78E-04 14 C4b-binding protein alpha chain C4bpa 2.42 2.53E-04 15 Protein KTI12 homolog Kti12 2.41 2.74E-04 16 Protein Rab11fip5 Rab11fip5 2.41 2.84E-04 17 Protein Mcpt1l3 Mcpt1l3 2.33 4.43E-04 18 Phospholipase B-like 1 Plbd1 2.33 4.76E-04 Aldehyde dehydrogenase (NAD), cytosolic 19 2.32 4.93E-04 (Fragments) 20 Protein Dpy19l2 Dpy19l2 2.3 5.68E-04 21 Regenerating islet-derived 3 alpha, isoform CRA_a Reg3a 2.27 6.74E-04 22 60S acidic ribosomal protein P1 Rplp1 2.26 7.22E-04 23 Serum albumin Alb 2.25 7.98E-04 24 Ribonuclease 4 Rnase4 2.24 8.25E-04 25 Cct-5 protein (Fragment) Cct5 2.24 8.52E-04 26 Protein S100-A9 S100a9 2.22 9.71E-04 27 Creatine kinase M-type Ckm 2.21 1.00E-03 28 Protein Larp4b Larp4b 2.18 1.25E-03 -
Datasheet: VPA00226
Datasheet: VPA00226 Description: RABBIT ANTI ALDOA Specificity: ALDOA Format: Purified Product Type: PrecisionAb™ Polyclonal Isotype: Polyclonal IgG Quantity: 100 µl Product Details Applications This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit www.bio-rad-antibodies.com/protocols. Yes No Not Determined Suggested Dilution Western Blotting 1/1000 PrecisionAb antibodies have been extensively validated for the western blot application. The antibody has been validated at the suggested dilution. Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Further optimization may be required dependant on sample type. Target Species Human Species Cross Reacts with: Mouse, Rat Reactivity N.B. Antibody reactivity and working conditions may vary between species. Product Form Purified IgG - liquid Preparation Rabbit Ig fraction prepared by ammonium sulphate precipitation Buffer Solution Phosphate buffered saline Preservative 0.09% Sodium Azide (NaN3) Stabilisers Immunogen KLH conjugated synthetic peptide between 66-95 amino acids from the N-terminal region of human ALDOA External Database UniProt: Links P04075 Related reagents Entrez Gene: 226 ALDOA Related reagents Page 1 of 2 Synonyms ALDA Specificity Rabbit anti Human ALDOA antibody recognizes fructose-bisphosphate aldolase A, also known as epididymis secretory sperm binding protein Li 87p, fructose-1,6-bisphosphate triosephosphate-lyase, lung cancer antigen NY-LU-1 and muscle-type aldolase. Encoded by the ALDOA gene, fructose-bisphosphate aldolase A is a glycolytic enzyme that catalyzes the reversible conversion of fructose-1,6-bisphosphate to glyceraldehyde 3-phosphate and dihydroxyacetone phosphate. -
Isolation and Characterization of a Mutant Liver Aldolase in Adult Hereditary Fructose Intolerance
Isolation and characterization of a mutant liver aldolase in adult hereditary fructose intolerance. Identification of the enzyme variant by radioassay in tissue biopsy specimens Timothy M. Cox, … , Michael Camilleri, Arthur H. Burghes J Clin Invest. 1983;72(1):201-213. https://doi.org/10.1172/JCI110958. Hereditary fructose intolerance (HFI) is a metabolic disorder caused by enzymic deficiency of aldolase B, a genetically distinct cytosolic isoenzyme expressed exclusively in liver, kidney, and intestine. The molecular basis of this enzyme defect has been investigated in three affected individuals from a nonconsanguineous kindred, in whom fructose-l- phosphate aldolase activities in liver or intestinal biopsy samples were reduced to 2-6% of mean control values. To identify a putative enzyme mutant in tissue extracts, aldolase B was purified from human liver by affinity chromatography and monospecific antibodies were prepared from antiserum raised in sheep. Immunodiffusion gels showed a single precipitin line common to pure enzyme and extracts of normal liver and intestine, but no reaction with extracts of brain, muscle, or HFI liver. However, weak positive staining for aldolase in hepatocyte and enterocyte cytosol was demonstrated by indirect immunofluorescence of HFI tissues. This was abolished by pretreatment with pure enzyme protein. Accordingly, a specific radioimmunoassay (detection limit 7.5 ng) was established to quantify immunoreactive aldolase B in human biopsy specimens. Extracts of tissue from affected patients gave 10-25% immunoreactive enzyme in control samples; immunoreactive aldolase in intestinal extracts from four heterozygotes was reduced (to 55%) when compared with seven samples from normal control subjects (P < 0.05). In extracts of HFI tissues, there was a sevenfold reduction in apparent absolute specific […] Find the latest version: https://jci.me/110958/pdf Isolation and Characterization of a Mutant Liver Aldolase in Adult Hereditary Fructose Intolerance IDENTIFICATION OF THE ENZYME VARIANT BY RADIOASSAY IN TISSUE BIOPSY SPECIMENS TIMOTHY M. -
Peroxisomal Disorders and Their Mouse Models Point to Essential Roles of Peroxisomes for Retinal Integrity
International Journal of Molecular Sciences Review Peroxisomal Disorders and Their Mouse Models Point to Essential Roles of Peroxisomes for Retinal Integrity Yannick Das, Daniëlle Swinkels and Myriam Baes * Lab of Cell Metabolism, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium; [email protected] (Y.D.); [email protected] (D.S.) * Correspondence: [email protected] Abstract: Peroxisomes are multifunctional organelles, well known for their role in cellular lipid homeostasis. Their importance is highlighted by the life-threatening diseases caused by peroxisomal dysfunction. Importantly, most patients suffering from peroxisomal biogenesis disorders, even those with a milder disease course, present with a number of ocular symptoms, including retinopathy. Patients with a selective defect in either peroxisomal α- or β-oxidation or ether lipid synthesis also suffer from vision problems. In this review, we thoroughly discuss the ophthalmological pathology in peroxisomal disorder patients and, where possible, the corresponding animal models, with a special emphasis on the retina. In addition, we attempt to link the observed retinal phenotype to the underlying biochemical alterations. It appears that the retinal pathology is highly variable and the lack of histopathological descriptions in patients hampers the translation of the findings in the mouse models. Furthermore, it becomes clear that there are still large gaps in the current knowledge on the contribution of the different metabolic disturbances to the retinopathy, but branched chain fatty acid accumulation and impaired retinal PUFA homeostasis are likely important factors. Citation: Das, Y.; Swinkels, D.; Baes, Keywords: peroxisome; Zellweger; metabolism; fatty acid; retina M. Peroxisomal Disorders and Their Mouse Models Point to Essential Roles of Peroxisomes for Retinal Integrity. -
Supplementary Table S4. FGA Co-Expressed Gene List in LUAD
Supplementary Table S4. FGA co-expressed gene list in LUAD tumors Symbol R Locus Description FGG 0.919 4q28 fibrinogen gamma chain FGL1 0.635 8p22 fibrinogen-like 1 SLC7A2 0.536 8p22 solute carrier family 7 (cationic amino acid transporter, y+ system), member 2 DUSP4 0.521 8p12-p11 dual specificity phosphatase 4 HAL 0.51 12q22-q24.1histidine ammonia-lyase PDE4D 0.499 5q12 phosphodiesterase 4D, cAMP-specific FURIN 0.497 15q26.1 furin (paired basic amino acid cleaving enzyme) CPS1 0.49 2q35 carbamoyl-phosphate synthase 1, mitochondrial TESC 0.478 12q24.22 tescalcin INHA 0.465 2q35 inhibin, alpha S100P 0.461 4p16 S100 calcium binding protein P VPS37A 0.447 8p22 vacuolar protein sorting 37 homolog A (S. cerevisiae) SLC16A14 0.447 2q36.3 solute carrier family 16, member 14 PPARGC1A 0.443 4p15.1 peroxisome proliferator-activated receptor gamma, coactivator 1 alpha SIK1 0.435 21q22.3 salt-inducible kinase 1 IRS2 0.434 13q34 insulin receptor substrate 2 RND1 0.433 12q12 Rho family GTPase 1 HGD 0.433 3q13.33 homogentisate 1,2-dioxygenase PTP4A1 0.432 6q12 protein tyrosine phosphatase type IVA, member 1 C8orf4 0.428 8p11.2 chromosome 8 open reading frame 4 DDC 0.427 7p12.2 dopa decarboxylase (aromatic L-amino acid decarboxylase) TACC2 0.427 10q26 transforming, acidic coiled-coil containing protein 2 MUC13 0.422 3q21.2 mucin 13, cell surface associated C5 0.412 9q33-q34 complement component 5 NR4A2 0.412 2q22-q23 nuclear receptor subfamily 4, group A, member 2 EYS 0.411 6q12 eyes shut homolog (Drosophila) GPX2 0.406 14q24.1 glutathione peroxidase -
Lipid Deposition and Metabolism in Local and Modern Pig Breeds: a Review
animals Review Lipid Deposition and Metabolism in Local and Modern Pig Breeds: A Review Klavdija Poklukar 1 , Marjeta Candek-Potokarˇ 1,2 , Nina Batorek Lukaˇc 1 , Urška Tomažin 1 and Martin Škrlep 1,* 1 Agricultural Institute of Slovenia, Ljubljana SI-1000, Slovenia; [email protected] (K.P.); [email protected] (M.C.-P.);ˇ [email protected] (N.B.L.); [email protected] (U.T.) 2 University of Maribor, Faculty of Agriculture and Life Sciences, HoˇceSI-2311, Slovenia * Correspondence: [email protected]; Tel.: +386-(0)1-280-52-34 Received: 17 February 2020; Accepted: 29 February 2020; Published: 3 March 2020 Simple Summary: Intensive selective breeding and genetic improvement of relatively few pig breeds led to the abandonment of many low productive local pig breeds. However, local pig breeds are more highly adapted to their specific environmental conditions and feeding resources, and therefore present a valuable genetic resource. They are able to deposit more fat and have a distinct lipogenic capacity, along with a better fatty acid composition than modern breeds. Physiological, biochemical and genetic mechanisms responsible for the differences between fatty and lean breeds are still not fully clarified. The present paper highlights important associations to better understand the underlying mechanisms of lipid deposition in subcutaneous and intramuscular fat between fatty and lean breeds. Abstract: Modern pig breeds, which have been genetically improved to achieve fast growth and a lean meat deposition, differ from local pig breeds with respect to fat deposition, fat specific metabolic characteristics and various other properties. The present review aimed to elucidate the mechanisms underlying the differences between fatty local and modern lean pig breeds in adipose tissue deposition and lipid metabolism, taking into consideration morphological, cellular, biochemical, transcriptomic and proteomic perspectives.