Abstract：
:The neprilysin gene is composed of three distinct 5' noncoding exons which can be joined to the first coding exon to generate multiple mRNA species, all encoding the same protein. Genomic fragments containing upstream sequences of each of these three noncoding exons from the rat neprilysin gene were subcloned in the promoterless vector pXp1, which contains the luciferase reporter gene. Expression was compared between a neprilysin positive human spinal cord cell line, HSC-2, and neprilysin negative lines MCF-7, a human breast adenocarcinoma cell line and Hep G2, a human liver carcinoma cell line. The first and second promoter regions showed high activity in the positive cell line, but low activity in the negative cell lines. An analysis of the exon 1 promoter region showed that the proximal 85 nucleotides exhibited basal promoter activity. An enhancer-like sequence was found to be located within a 22-bp fragment located at -136 to -115. Scanning mutagenesis of a 29-bp fragment containing the enhancer-like sequence showed that changes in each 5- or 6-bp segment throughout this fragment decreased activity; however, mutations of the segment encompassing positions 19 to 24 eliminated >98% of the promoter activity. Binding of nuclear proteins from HSC-2 cells to this 29-bp fragment was observed by gel shift analysis. The ability of mutations within the 29-bp fragment to affect enhancer activity correlated with the ability of these mutant oligonucleotides to compete for the wild-type sequence in gel shift assays.
journal_name
Arch Biochem Biophysjournal_title
Archives of biochemistry and biophysicsauthors
Li C,Hersh LBdoi
10.1006/abbi.1998.0855subject
Has Abstractpub_date
1998-10-01 00:00:00pages
189-95issue
1eissn
0003-9861issn
1096-0384pii
S0003-9861(98)90855-4journal_volume
358pub_type
杂志文章abstract：:Membrane dielectric as a primary basis for effects of ethanol was examined in synaptic plasma membranes (SPM) of genetically selected ethanol-sensitive long-sleep (LS) and ethanol-resistant short-sleep (SS) mice. Multifrequency phase and modulation of fluorometry of diphenylhexatriene (DPH) was used to resolve structu...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1994.1126
更新日期：1994-03-01 00:00:00
abstract：:The expression and activity of the phenobarbital (PB)-inducible P-450 isozymes, P-450b and P-450e, and the major 3-methylcholanthrene (MC)-inducible form, P-450c, were studied in primary cultures of adult rat hepatocytes in T1, Leibovitz L-15 (L-15), and a modification of Waymouth 752/1 (Way) media. P-450 isozymes in ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(88)90629-7
更新日期：1988-05-15 00:00:00
abstract：:Two Escherichia coli mutants that lack both cytochrome o and d terminal oxidases are able to grow with glucose as the carbon source but not with the aerobic substrates succinate or lactate. One of these, GV101, is a deletion mutant of cytochrome o and a point mutation of cytochrome d. The other, GK100, is a total dele...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(92)90391-9
更新日期：1992-03-01 00:00:00
abstract：:The sigma(N) protein is an alternative sigma subunit of bacterial RNA polymerase. We investigated the role of a 12-amino-acid "tail" at the C-terminus of Klebsiella pneumoniae sigma(N), which was predicted to be largely surface-exposed and to be mostly loop (that is not alpha-helical or beta-strand). Deletion of this ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1999.1426
更新日期：1999-11-15 00:00:00
abstract：:Salicylhydroxamic acid reductase, which catalyzes the reduction of salicylhydroxamic acid to salicylamide, was purified from rat liver cytosol. The purification procedure consisted of fractionation with ammonium sulfate, chromatography with Phenyl-Toyopearl 650, DEAE-cellulose, hydroxyapatite, and Sephadex G-200, and ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1993.1223
更新日期：1993-05-01 00:00:00
abstract：:K(+)-contracted porcine carotid arterial muscles containing phosphorylated 20-kDa myosin light chains (LC) were exposed to carrier-free [32P]orthophosphate in K(+)-stimulating solution during sustained contraction. The covalently bound LC phosphate was completely replaced by [32P]phosphate, indicating that myosin ligh...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(91)90407-a
更新日期：1991-05-15 00:00:00
abstract：:Just 25 years ago the Anfinsen thermodynamic hypothesis was shown to be valid for membrane proteins. Despite the complex biological machinery required for their in vivo assembly and in face of the chemically heterogeneous, anisotropic nature of their biological lipid bilayer "solvent", the evidence continues to sugges...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章,评审
doi：10.1016/j.abb.2007.09.024
更新日期：2008-01-01 00:00:00
abstract：:The insulin receptor from rat skeletal muscle was characterized. Treatment of muscle membranes with the photoactive insulin analog, 125I[N-epsilonB29-monoazidobenzoyl]-insulin revealed a single protein band of 135,000 Da, the alpha subunit. Iodination of total membrane protein followed by Triton X-100 solubilization a...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(85)90611-3
更新日期：1985-01-01 00:00:00
abstract：:The steric course of methyl group transfer catalyzed by two DNA methylases, HhaI methylase, a DNA (cytosine-5)-methyltransferase, and EcoRI methylase, which methylates at N6 of adenosine, has been studied with (methyl-R)- and (methyl-S)-[methyl-2H1,3H]adenosylmethionine as the methyl donor, using as substrates poly-d(...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(91)90294-s
更新日期：1991-02-01 00:00:00
abstract：:Treatment of streptozotocin (ST), tumor necrosis factor-alpha (TNF-alpha), and interleukin-1beta (IL-1beta) resulted in destroying insulin-secreting beta-cells of pancreatic islets and impairment of islet glucose oxidation and glucose-induced insulin secretion. IL-1beta and TNF-alpha inhibited insulin release and gluc...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1998.1004
更新日期：1999-02-15 00:00:00
abstract：:We have studied the time-resolved fluorescence of three engineered Tet repressor (TetR) mutants bearing a single Trp residue at positions 162, 163, and 165 in the C-terminal part of the loop joining helices 8 and 9. Detailed analysis indicates that, at 20 degrees, the fluorescence decay of each Trp can be described as...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1997.0290
更新日期：1997-10-15 00:00:00
abstract：:Limited proteolysis of the plasma membrane calcium transport ATPase (Ca2+-ATPase) from human erythrocytes by trypsin produces a calmodulin-like activation of its ATP hydrolytic activity and abolishes its calmodulin sensitivity. We now demonstrate a similar kind of activation of the human erythrocyte membrane Ca2+-ATPa...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(88)90498-5
更新日期：1988-02-01 00:00:00
abstract：:Sulfotyrosyl peptides corresponding to the known high-affinity substrate phosphotyrosyl peptide sequences in casein and the autophosphorylation sites of insulin receptor and EGF receptor were investigated as inhibitors of protein tyrosine phosphatases PTP1B and CD45. These peptides inhibit both PTP1B and CD45 in the m...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1998.0691
更新日期：1998-06-15 00:00:00
abstract：:Peroxynitrite, a biological oxidant formed from the reaction of nitric oxide with the superoxide radical, is associated with many pathologies, including neurodegenerative diseases, such as multiple sclerosis (MS). Gout (hyperuricemic) and MS are almost mutually exclusive, and uric acid has therapeutic effects in mice ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.2000.1721
更新日期：2000-04-15 00:00:00
abstract：:Mitochondrial carbonic anhydrase has previously been quantitated in liver mitochondria; it was not detected in guinea pig kidney cortical mitochondria. Evidence of this enzyme in rat kidney cortical mitochondria is reported. Electron microscopy showed that intact mitochondria were free of other intracellular organelle...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(88)90457-2
更新日期：1988-01-01 00:00:00
abstract：:Differential scanning calorimetry measures the heat capacity of states and the excess heat associated with transitions that can be induced by temperature change. The integral of the excess heat capacity is the enthalpy for this process. Despite this potentially intimidating sounding physical chemistry background, DSC ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章,评审
doi：10.1016/j.abb.2012.09.008
更新日期：2013-03-01 00:00:00
abstract：:The conversion of the precursor of apolipoprotein A-I (proapoA-I) to apolipoprotein A-I (apoA-I) is known to occur extracellularly by an enzyme that has been shown to be present in plasma. The hepatocarcinoma-derived cell line Hep G2, when grown in culture, secretes proapoA-I. We now show that this cell line also secr...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(88)90003-3
更新日期：1988-11-15 00:00:00
abstract：:Cystalysin, the key virulence factor in the bacterium Treponema denticola responsible for periodontis, is a pyridoxal 5'-phosphate (PLP) enzyme which catalyzes, in addition to alpha,beta-elimination of L-cysteine, racemization and transamination of both enantiomers of alanine. In this paper several indicators have bee...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2006.08.020
更新日期：2006-11-01 00:00:00
abstract：:We demonstrate that the efficiency of adenovirus-assisted exogenous Ca(2+) ATPase (SERCA) and reporter (EGFP) gene expression is much higher in primary cultures of myocytes from neonatal rat hearts, than in primary cultures of myocytes from adult rat hearts. In this respect, the neonatal myocytes behave similarly to t...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/s0003-9861(03)00258-3
更新日期：2003-07-15 00:00:00
abstract：:A biochemical basis for the pea and lentil lectin resistance of two Chinese hamster ovary (CHO) cell mutants, Lec13 and Lec13A, was investigated. Studies of the G glycopeptides of vesicular stomatitis virus grown in the mutants indicated that Lec13 cells essentially lack the ability to add fucose to complex carbohydra...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(86)90031-7
更新日期：1986-09-01 00:00:00
abstract：:Minoxidil was found to inhibit the proliferation of smooth muscle cells in the proliferating phase, but not in the quiescent phase. Treatment of proliferating or quiescent cells with minoxidil resulted in a dose- and time-dependent stimulation of elastin synthesis specifically. Maximum stimulation (fourfold) occurred ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1994.1482
更新日期：1994-11-15 00:00:00
abstract：:We propose that adverse effects of the antibiotic metronidazole may be due, wholly or in part, to its conversion to a thiamine analog and consequent vitamin B1 antagonism. Consistent with this hypothesis, the drug is accepted as a substrate for the thiaminase (EC 2.5.1.2) elaborated as an exoenzyme by the human gut fl...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(87)90577-7
更新日期：1987-09-01 00:00:00
abstract：:A 60- to 70-fold purification of an NAD+ glycohydrolase from the inner membrane of rat liver mitochondria to apparent homogeneity on sodium dodecyl sulfate (SDS)-polyacrylamide slab gel is described. The minimum molecular weight of the enzyme on polyacrylamide gels in the presence of SDS is around 62,000. The enzyme s...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(83)90220-5
更新日期：1983-07-01 00:00:00
abstract：:The manganese-containing (MnSOD) and iron-containing (FeSOD) superoxide dismutases from Escherichia coli are extensively (greater than 95%) inactivated by treatment with phenylglyoxal. The relatively high concentrations of phenylglyoxal and high pH required for optimal inactivation suggest that inactivation may be due...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(89)90566-3
更新日期：1989-01-01 00:00:00
abstract：:(6R)-5,6,7,8-Tetrahydro-L-biopterin (R-THBP) is a cofactor not only for aromatic amino acid hydroxylases in mammalian tissues but also for nitric oxide synthase (NOS) induced by endotoxins or cytokines in some kinds of cells. Recently it has been reported that nitric oxide (NO) has biological activity in endothelium a...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(92)90472-9
更新日期：1992-11-01 00:00:00
abstract：:Methionine is oxidized to methionine sulfoxide by rat liver and kidney microsomes in an O2- and NADPH-dependent manner. In all microsomal assays, no methionine sulfone was detected. Use of a monoclonal antibody to rat liver cytochrome P-450 reductase, various cytochrome P-450 and peroxidase inhibitors, antioxidants, a...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1996.0370
更新日期：1996-09-01 00:00:00
abstract：:Cytochrome P450 (P450) 2D6 is the classic human liver debrisoquine 4-hydroxylase, the first human P450 for which genetic polymorphism was clearly demonstrated. We prepared 11 different constructs of P450 2D6, with modification at the N-terminus, for expression in Escherichia coli with the vector pCW. These varied cons...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1995.1329
更新日期：1995-06-01 00:00:00
abstract：:Carotenoids possessing hydroxyl groups can be found in nature both as free xanthophylls and as carotenoid esters, i.e. acylated with fatty acids. A single carotenoid can be acylated with different fatty acids, resulting in a high number of possible structures of carotenoid esters. The analysis of carotenoid esters can...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章,评审
doi：10.1016/j.abb.2018.04.005
更新日期：2018-06-15 00:00:00
abstract：:Tripeptidyl-peptidase II (TPP II) is a cytosolic peptidase that has been implicated in fat formation and cancer, apparently independent of the enzymatic activity. In search for alternative functional regions, conserved motifs were identified and eleven signatures were constructed. Seven of the signatures covered previ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2009.01.007
更新日期：2009-04-01 00:00:00
abstract：:Dystrophic chicken breast muscle mitochondria contain significantly less mitochondrial creatine kinase than normal breast muscle mitochondria. Breast muscle mitochondria from normal 16- to 40-day-old chickens contain approximately 80 units of mitochondrial creatine kinase per unit of succinate:INT (p-iodonitrotetrazol...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(85)90043-8
更新日期：1985-07-01 00:00:00
