Abstract:
:Cytochrome P450 (P450) 2C1/2 contains redundant endoplasmic reticulum (ER) retention signals and is excluded from the recycling pathway. Other P450s, such as P450 2E1, have been detected in the plasma membrane and Golgi apparatus. To examine whether the mechanisms of ER retention might differ for P450 2C1/2 and P450 2E1, chimeras of green flourescent protein and the full-length proteins, N-terminal signal/anchor sequences, or the cytoplasmic catalytic domains from these proteins have been expressed in COS1 cells. Chimeras with either the N-terminal signal/anchor sequence or the cytoplasmic domain of P450 2C1/2 were retained in the ER and the distribution was not altered by treatment with nocodazole. A chimera with full-length P450 2E1 was located in the ER, but in contrast to P450 2C1/2, treatment with nocodazole resulted in redistribution to a vesicular pattern, which suggested that this protein was retained in the ER by a retrieval mechanism. In support of this possibility, the P450 2E1 chimera, but not the P450 2C1/2 chimera, was included in transport vesicles generated in an in vitro budding assay. A chimera with only the N-terminal signal/anchor sequence of P450 2E1 fused to green fluorescent protein was located in the ER and nocodazole treatment altered its distribution, whereas a chimera with only the cytoplasmic domain of P450 2E1 was not efficiently retained in the ER and accumulated primarily in the Golgi region. These results demonstrate that the mechanisms for retention in the ER of two closely related members of the P450 superfamily are different and that the N-terminal signal/anchor sequence contains the dominant retention signal.
journal_name
Arch Biochem Biophysjournal_title
Archives of biochemistry and biophysicsauthors
Szczesna-Skorupa E,Chen CD,Kemper Bdoi
10.1006/abbi.1999.1628subject
Has Abstractpub_date
2000-02-15 00:00:00pages
128-36issue
2eissn
0003-9861issn
1096-0384pii
S0003-9861(99)91628-4journal_volume
374pub_type
杂志文章abstract::The cDNA probe H-9, originally constructed to recognize a portion of the mRNA for lapine synovial collagenase, also hybridized with a RNA of the same size (approximately 2.0 kb) isolated from activated lapine articular chondrocytes. Primary, monolayer cultures of lapine articular chondrocytes did not contain detectabl...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(88)90605-4
更新日期:1988-07-01 00:00:00
abstract::The essential Zn(II) in bovine liver dihydropyrimidine amidohydrolase (DHPase) was removed by incubation with 2,6-dipicolinic acid and replaced with Mn(II). Electron paramagnetic resonance studies of Mn(II) binding show that there are four binding sites per tetramer, and the dissociation constant at pH 7.5 is 13.5 mic...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(87)90526-1
更新日期:1987-12-01 00:00:00
abstract::The level of phosphorylation and activation of phosphofructokinase by serotonin (5-hydroxytryptamine) was studied in intact liver flukes Fasciola hepatica. The enzyme was immunoprecipitated with antiserum prepared against pure enzyme from the liver flukes. The resuspended immunoprecipitated enzyme retained most of its...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(89)90307-x
更新日期:1989-06-01 00:00:00
abstract::alpha1 Antitrypsin (alpha1AT) is the archetypal member of the serpin superfamily. Current knowledge of its inhibitory mechanism does not provide for any heparin-induced enhancement of serine proteinase inhibition. Since previous results have shown that an apparently altered alpha1AT form may be purified from the plasm...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1997.0317
更新日期:1997-11-01 00:00:00
abstract::Intact rat liver mitochondria have very low hydrolytic activity, if any, toward exogenous pyrophosphate. The activity can be unmasked by making mitochondria permeable to PPi by toluene treatment or disrupting them with detergents or ultrasound, indicating that the active site of pyrophosphatase is located in the matri...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(92)90044-w
更新日期:1992-01-01 00:00:00
abstract::We recently cloned a rat brain agmatinase-like protein (ALP) whose amino acid sequence greatly differs from other agmatinases and exhibits a LIM-like domain close to its carboxyl terminus. The protein was immunohistochemically detected in the hypothalamic region and hippocampal astrocytes and neurons. We now show that...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2011.05.003
更新日期:2011-08-01 00:00:00
abstract::Representatives of four different classes of isoquinoline alkaloids (aporphines, benzylisoquinolines, tetrahydroisoquinolines, and phthalideisoquinolines) inhibit glutamate dehydrogenase activity in both reaction directions. Representatives of five other groups of isoquinoline alkaloids have been without any significa...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(83)90144-3
更新日期:1983-02-15 00:00:00
abstract::Diastolic dysfunction is a clinically significant problem for patients with diabetes and often reflects increased ventricular stiffness. Attached cross-bridges contribute to myocardial stiffness and produce short-range forces, but it is not yet known whether these forces are altered in diabetes. In this study, we test...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2013.08.013
更新日期:2014-06-15 00:00:00
abstract::Catechol 1,2-dioxygenase catalyzes the oxygenative ring cleavage of catechol to form cis,cis-muconic acid and is encoded by a catA gene. We have cloned a catA gene from Pseudomonas putida mt-2 using a PCR product of amino acid sequence-based primers as a probe. The amino acid sequence deduced from the 930 nucleotides ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1995.1405
更新日期:1995-08-20 00:00:00
abstract::The velocity of acetaldehyde metabolism in rat liver may be governed either by the rate of regeneration of NAD from NADH through the electron transport system or by the activity of aldehyde dehydrogenase (ALDH). Measurements of oxygen consumption revealed that the electron transport system was capable of reoxidizing A...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(85)90603-4
更新日期:1985-01-01 00:00:00
abstract::Reactive oxygen species (ROS) and ceramide are each partly responsible for the signal transduction of a variety of extracellular agents. Furthermore, the application of synthetic, short-chain ceramides mimics the cellular responses to these extracellular agents. However, the significance of ROS involvement in ceramide...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/s0003-9861(02)00496-4
更新日期:2002-11-01 00:00:00
abstract::The fatty acid composition of total lipids and the adrenoceptor-mediated activation of glycogenolysis were studied in isolated hepatocytes from rats maintained on a control diet or on an essential fatty acid (EFA)-free diet. In cells from rats on the EFA-free diet there was a marked reduction in linoleic and arachidon...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(90)90608-2
更新日期:1990-11-15 00:00:00
abstract::We hypothesized that cellular oxygen consumption is abnormal during sepsis as a result of increased oxidative stress and selective mitochondrial damage. In a rat model of sepsis (cecal ligation and puncture), we studied the respiratory characteristics of isolated hepatocytes and liver mitochondria 16 h after onset of ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1997.0264
更新日期:1997-09-15 00:00:00
abstract::We have developed derivatives of mouse embryonic fibroblasts (10T1/2) and Chinese hamster ovary (AS52) cells that stably express high levels of murine prostaglandin synthase-1 or -2 (PGHS-1 or -2). The cDNAs were transferred using retroviral vectors and the resulting G418-resistant clones were analyzed for prostagland...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1996.0257
更新日期:1996-06-15 00:00:00
abstract::To date, the role of miRNA in tumorigenesis has been largely reported. It was found that miR-181a may be involved in the tumorigenesis of colon cancer. The purpose of this study was to investigate the mechanism of miR-181a in colon cancer carcinogenesis. The expression levels of IL-1β, NF-κB (RelA), and miR-181a in co...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2016.06.001
更新日期:2016-08-15 00:00:00
abstract::A thymidine-diphospho-4-keto-6-deoxy-D-glucose epimerase was purified from Saccharopolyspora erythraea, the producer of the macrolide antibiotic erythromycin, by a high resolution chromatographic method that exploited the difference in behavior of the protein on ion exchange columns at pH 7.5 and 5.5. By this procedur...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1994.1025
更新日期:1994-01-01 00:00:00
abstract::Phosphoenolpyruvate carboxylase from maize leaves was inactivated by pyridoxal 5'-phosphate in the dark and in the light. A two-step reversible mechanism is proposed for inactivation in the dark, which involves the formation of a noncovalent complex prior to a Schiff base with amino groups of the enzyme. Spectral anal...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(86)90309-7
更新日期:1986-05-01 00:00:00
abstract::We describe herein the design and in vitro biochemical evaluation of a novel class of mechanism-based inhibitors of human leukocyte elastase (HLE) that inactivate the enzyme via an unprecedented enzyme-induced sulfonamide fragmentation cascade. The inhibitors incorporate in their structure an appropriately functionali...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2004.05.018
更新日期:2004-09-01 00:00:00
abstract::Hemorrhagic toxin f (HT-f) was isolated from Crotalus atrox (Western Diamondback Rattlesnake) venom by a five-step purification procedure. Homogeneity was established by the formation of a single band in acrylamide gel electrophoresis, isoelectric focusing, and sodium dodecyl sulfate (SDS)-electrophoresis. HT-f has a ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(84)90393-x
更新日期:1984-06-01 00:00:00
abstract::Activation of the NLRP3 inflammasome plays an important role in high glucose- induced endothelial dysfunction in patients with type 2 diabetes mellitus (T2DM). Dulaglutide, a newly developed glucagon-like peptide-1 receptor (GLP-1R) agonist, has been approved for the management of T2DM. In the current study, we aimed ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2019.07.008
更新日期:2019-08-15 00:00:00
abstract::Retinol (vitamin A alcohol), which plays an important role in the differentiation of epithelia, can be transferred to chromatin in vitro. Rat liver chromatin can accept retinol in a specific and saturable manner only when the retinol is presented as a complex with cellular retinol-binding protein (CRBP). A partial cha...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(85)90287-5
更新日期:1985-03-01 00:00:00
abstract::An S-adenosyl-L-methionine:caffeoyl-CoA 3-O-methyltransferase was purified 82-fold from elicitor-induced parsley cell suspension cultures by ammonium sulfate fractionation, anionic exchange and hydrophobic interaction chromatographies, and chromatofocusing. The enzyme has an apparent pI of 5.7 and a molecular weight o...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(89)90299-3
更新日期:1989-06-01 00:00:00
abstract::In this study, oxygen consumption and H(2)O(2) release rate by succinate or pyruvate/malate supplemented mitochondria isolated from skeletal muscle of trained and untrained rats were investigated. The overall mitochondrial antioxidant capacity and the effect of preincubation of mitochondria with GDP, an inhibitor of u...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1999.1494
更新日期:1999-12-15 00:00:00
abstract::We conducted a study to determine the effect of different doses of a lutein supplement on serum lutein concentration and macular pigment optical density (MPOD). Lutein is one of the major components of human macular pigment. Eighty-seven subjects received daily doses of 5, 10, or 20 mg of lutein, or a placebo, over a ...
journal_title:Archives of biochemistry and biophysics
pub_type: 临床试验,杂志文章
doi:10.1016/j.abb.2010.06.019
更新日期:2010-12-01 00:00:00
abstract::The metabolic fates of NG,NG-and NG,N'G-dimethylarginines in rats were investigated isotopically and novel metabolites, alpha-keto-delta-(N,N-dimethylguanidino)-and alpha-keto-delta-(N,N'-dimethylguanidino)valeric acids and gamma-(N,N-dimethylguanidino)-and gamma-(N,N'-dimethylguanidino)butyric acids were identified. ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(87)90060-9
更新日期:1987-02-01 00:00:00
abstract::The effect of fatty acid binding proteins (FABPs) on two key steps of microsomal phosphatidic acid formation was examined. Rat liver microsomes were purified by size-exclusion chromatography to remove endogenous cytosolic fatty acid and fatty acyl-CoA binding proteins while recombinant FABPs were used to avoid cross-c...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1997.9957
更新日期:1997-05-01 00:00:00
abstract::Biosynthesis of thyroxine in the thyroid gland involves a reaction between two diiodotyrosyl residues within the same molecule of thyroglobulin, a large, thyroid-specific glycoprotein. This reaction, generally referred to as the coupling reaction, is catalyzed in the thyroid by the heme-containing glycoprotein enzyme,...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1994.1474
更新日期:1994-11-15 00:00:00
abstract::A 42-kDa plant outer mitochondrial membrane protein, MOM42, has been identified as an essential component of the plant mitochondrial precursor protein translocation apparatus. Immunological cross-reactivity has been detected between antibodies raised against both Neurospora and yeast mitochondrial outer membrane prote...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1995.1088
更新日期:1995-02-01 00:00:00
abstract::Differential light absorption spectra of the bilirubin-albumin 1:1 complex, obtained on addition of 20 different sulfonamides, differ with respect to shape and amplitude. This finding seems to indicate that the sulfonamide molecule is bound in direct touch with the bilirubin. The light absorption spectrum of bilirubin...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(87)90063-4
更新日期:1987-02-01 00:00:00
abstract::Tyr-503 of beta-galactosidase was specifically replaced with Phe, His, Cys, and Lys using site-directed mutagenesis. The normal enzyme and the substituted enzymes were purified. The activities of each of the substituted enzymes with o-nitrophenyl-beta-D-galactopyranoside (ONPG) and p-nitrophenyl-beta-D-galactopyronosi...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(90)90652-f
更新日期:1990-12-01 00:00:00