Abstract:
:Terf/TRIM17 is a tripartite motif protein that has been originally isolated from testis. Terf has been characterized to exhibit an E3 ubiquitin ligase activity and to undergo self-ubiquitination. The cellular function of terf and its substrates, however, remain elusive. In the present study, we performed a yeast two-hybrid screening assay using terf as bait and identified a positive clone coding for ZW10 interacting protein (ZWINT), a known component of the kinetochore complex required for the mitotic spindle checkpoint. Immunoprecipitation and western blot analyses showed that terf interacted with ZWINT and that overexpression of terf caused down-regulation of protein levels of ZWINT in mammalian cells. In addition, the coiled-coil domain of terf was required for the interaction with ZWINT. In a cell growth assay, stable transfection with terf decreased proliferation of MCF7 breast cancer cells. In contrast, the growth rate of MCF7 cells was increased by stable expression of ZWINT. Specific siRNAs targeting terf and ZWINT dampened these negative and positive effects of terf and ZWINT on cell proliferation, respectively. These results suggest that the E3 ubiquitin ligase terf causes protein degradation of ZWINT and negatively regulates cell proliferation.
journal_name
J Biochemjournal_title
Journal of biochemistryauthors
Endo H,Ikeda K,Urano T,Horie-Inoue K,Inoue Sdoi
10.1093/jb/mvr128subject
Has Abstractpub_date
2012-02-01 00:00:00pages
139-44issue
2eissn
0021-924Xissn
1756-2651pii
mvr128journal_volume
151pub_type
杂志文章abstract::Heptic fibrosis/cirrhosis is a common hepatic disease characterized by the hyper-accumulation of connective tissue components, and hepatic necrosis. Chronic alcohol ingestion, viral infection, and metabolic disorders are contributing factors and there has been no effective treatment. Hepatocyte growth factor (HGF), or...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124958
更新日期:1995-09-01 00:00:00
abstract::The nucleotide sequence of gene PBII encoding salivary proline-rich protein P-B was determined. PBII is 7.1 kb long and contains 3 exons. PBII exhibits considerable nucleotide sequence homology not only in exons but also in introns with PBI (accession number D89501), the gene whose nucleotide sequence was determined p...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022620
更新日期:2000-03-01 00:00:00
abstract::The sequential in situ digestion of proteins immobilized on polyvinylidene difluoride (PVDF) has been systematically designed and optimized. The method consists of immobilization of the proteins on PVDF, S-carboxymethylation, and then successive in situ digestions using specific proteases. In order to obtain high yiel...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a021389
更新日期:1996-07-01 00:00:00
abstract::The fructose 2,6-bisphosphate concentrations in unwashed, washed, and leukocyte-free erythrocytes were compared. The concentration in washed red cells was 31 +/- 15 pmol per ml of cells (mean +/- S.D., n = 6). The concentration in unwashed erythrocytes was at least twofold higher, but the value in washed red cells was...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122384
更新日期:1988-06-01 00:00:00
abstract::The complete amino acid sequence and disulfide bridge location of HR2a, one of the hemorrhagic proteins isolated from the snake venom of Trimeresurus flavoviridis, have been determined by analysis of peptides derived from digests with cyanogen bromide, lysyl endopeptidase, trypsin, and Staphylococcus aureus V8 proteas...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122756
更新日期:1989-05-01 00:00:00
abstract::Partial amino acid sequences of two mitochondrial cytochrome P-450's, P-450 (SCC) and P-450 (11 beta), and two microsomal cytochrome P-450's, P-450 (C-21), and P-450 (17 alpha, Lyase), from adrenal cortex were analyzed and compared. Mitochondrial P-450's and microsomal P-450's were different in the amino acid sequence...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:
更新日期:1983-11-01 00:00:00
abstract::Hepatitis C virus (HCV) core protein has been suggested to play crucial roles in the pathogeneses of liver steatosis and hepatocellular carcinomas due to HCV infection. Intracellular HCV core protein is localized mainly in lipid droplets, in which the core protein should exert its significant biological/pathological f...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvj104
更新日期:2006-05-01 00:00:00
abstract::Regulation of the enzymatic activity of heterotrimeric smooth muscle myosin phosphatase (SMMP) by MgATP was examined using phosphorylated myosin (P-myosin), heavy meromyosin (P-HMM), subfragment-1 (P-S1), and 20 kDa myosin light chain (P-MLC(20)) as substrates. The activity toward P-myosin and P-HMM was dose-dependent...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022518
更新日期:1999-10-01 00:00:00
abstract::Under conditions where nM level of calmodulin was able to show full activation of myosin light chain kinase and cyclic-nucleotide phosphodiesterase, the fragments of calmodulin at concentrations as high as 20 microM failed to activate these enzymes in the presence of Ca2+. The fragments tested were Ala1-Lys75 (F12), A...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122303
更新日期:1988-03-01 00:00:00
abstract::Anti-angiotensin I IgG in serum was measured by immune complex transfer enzyme immunoassays using angiotensin I conjugates prepared by two different methods. In the first method, angiotensin I was conjugated to dinitrophenyl bovine serum albumin and beta-D-galactosidase through covalent links. Anti-angiotensin I IgG i...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123275
更新日期:1990-11-01 00:00:00
abstract::Two kinds of myosin phosphatases were purified from fresh chicken gizzard smooth muscle. Alkaline phosphatase (CGP-a), which requires Mg2+, was most active at pH 8.6 with 2 to 4 mM Mg2+, and was essentially the same as the phosphatase we reported previously (J. Biochem. 99, 1027-1036 (1986]. On the other hand, neutral...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122278
更新日期:1988-02-01 00:00:00
abstract::Kinetic parameters, Km and Vmax for the transesterification of oligouridylic acid, (Up)nU greater than p (n=0-4), by RNase A were measured spectrophotometrically at pH 7.0 and 25 degrees C. The kinetic parameters, pKm and log Vmax increased with increase in the chain length (n), and seemed to be almost constant with s...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134833
更新日期:1984-07-01 00:00:00
abstract::In a previous study, we purified PAF-acetylhydrolase, which converts PAF to an inactive metabolite, lysoPAF, from peritoneal fluid of guinea pigs subjected to experimental endotoxin shock and found that this purified enzyme had similar biochemical properties to the plasma enzyme [Karasawa, K., Yato, M., Setaka, M., an...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a021488
更新日期:1996-10-01 00:00:00
abstract::The Mediator complex (Mediator) plays key roles in transcription and functions as the nexus for integration of various transcriptional signals. Previously, we screened for Mediator cyclin-dependent kinase (CDK)-interacting factors and identified three proteins related to chromatin regulation. One of them, SUZ12 is req...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvv055
更新日期:2015-11-01 00:00:00
abstract::A new multifunctional protein kinase, which normally exists as an inactive form in the soluble fraction in mammalian tissues, attaches to membranes to exhibit full enzymatic activity. A low concentration of Ca2+ is absolutely necessary for this activation. This process is reversible. cAMP shows no effect. The active f...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132557
更新日期:1979-08-01 00:00:00
abstract::ZFP36L1 is an RNA-binding protein responsible for mRNA decay in the cytoplasm. ZFP36L1 has also been suggested as a nuclear-cytoplasmic shuttling protein because it contains a potential nuclear localization signal and a nuclear export signal. However, it remains unclear how the nuclear localization of ZFP36L1 is contr...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvaa072
更新日期:2020-11-01 00:00:00
abstract::A DNA polymerase which was active with unprimed poly(dC) as a template was detected in the DNA polymerase alpha fraction from rat thymoma tissue. The activity was dependent on rGTP and associated with ribonucleotide polymerizing activity. The activity was partially sensitive to aphidicolin and dideoxy GTP and resistan...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134165
更新日期:1983-01-01 00:00:00
abstract::Protein phosphorylation is a key regulatory mechanism of the organization and dynamics of the actin cytoskeleton during cell motility, differentiation, and cytokinesis. The level of protein phosphorylation is dependent on the relative activities of both protein kinases and protein phosphatases. In this paper, we exami...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022375
更新日期:1999-05-01 00:00:00
abstract::A chitinase was purified from the culture filtrate of Streptomyces erythraeus (SE). The enzyme (SE chitinase) has a molecular weight of 30,000 and pI 3.7, and shows optimal activity at pH 5.0 with an optimal ionic strength of less than 0.2 M NaCl. SE chitinase could hydrolyze chitin and its derivatives, but could not ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122691
更新日期:1989-03-01 00:00:00
abstract::1. The relation between intrinsic viscosity in 0.2 M NaCl and molecular weight for samples of chondroitin sulfate isolated from shark cartilage could be expressed by [eeta] = 6.5 X 10(-6) Mr114. 2. Their sedimentation coefficients were linear with respect to the square root of molecular weight, and the intercept was n...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131956
更新日期:1978-03-01 00:00:00
abstract::Escherichia coli RNase HII is composed of 198 amino acid residues. The enzyme has been overproduced in an insoluble form, purified in a urea-denatured form, and refolded with poor yield [M. Itaya (1990) Proc. Natl. Acad. Sci. USA 87, 8587-8591]. To facilitate the preparation of the enzyme in an amount sufficient for p...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022684
更新日期:2000-05-01 00:00:00
abstract::Endonuclease V (Endo V) is a DNA repair enzyme that recognizes deoxyinosine and cleaves the second phosphodiester bond on the 3' side of the deaminated base lesion. A database search revealed the presence of homologous genes for Endo V in most archaeal species, but the absence in some methanogenic species. We cloned a...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvu010
更新日期:2014-05-01 00:00:00
abstract::In order to study the conformation of the side chain of lysine substrates bound to the active center of trypsin, two lysine analogs, cis- and trans-2,6-diamino-4-hexenoic acids (4,5-dehydrolysines) were synthesized and kinetic parameters for the hydrolysis of benzoyl methyl esters and phenylthiazolones of these analog...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a121695
更新日期:1986-07-01 00:00:00
abstract::We obtained enhanced thermostability by replacing Ser161 with Cys in subtilisin E from Bacillus subtilis, a cysteine-free alkaline serine protease. The Ser161Cys mutant subtilisin E was purified from the culture supernatant of the recombinant B. subtilis in an oxidizing environment. SDS-polyacrylamide gel electrophore...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022790
更新日期:2000-10-01 00:00:00
abstract::Arginine methylation in RNA-binding proteins containing arginine- and glycine-rich RGG motifs is catalyzed by specific protein arginine N-methyltransferase in cells. We previously showed that lymphoblastoid cells grown in the presence of an indirect methyltransferase inhibitor, adenosine dialdehyde (AdOx), accumulated...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022779
更新日期:2000-09-01 00:00:00
abstract::Wild mice are divided into two groups with different ganglioside compositions in the liver. Most Japanese and a few Chinese wild mice have GM2(NeuGc) as a major ganglioside, whereas all wild mice caught at other places distributed all over the world other than Japan and China express GM1(NeuGc) and GD1a(NeuGc) in addi...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134604
更新日期:1984-01-01 00:00:00
abstract::Four motor proteins, MotX, MotY, PomA, and PomB, have been identified as constituents of the Na(+)-driven flagellum of Vibrio species. In this study, the complete motX gene was cloned from Vibrio alginolyticus and shown to complement three mot mutations, motX94, motX115, and motX119, as well as a V. parahaemolyticus m...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a003061
更新日期:2001-12-01 00:00:00
abstract::Reports vary on the role of growth hormone (GH) in adipocyte differentiation. In this study, we showed that GH exerted dual effects depending on the stage of differentiation, using a serum-free culture of 3T3-L1 preadipocytes. GH promoted the differentiation when added to the medium during differentiation-inducing tre...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a003301
更新日期:2002-12-01 00:00:00
abstract::ATPase of 14S dynein, extracted from spermatozoa of the sea urchin, Hemicentrotus pulcherrimus, and partially purified by sucrose density gradient centrifugation, was inhibited non-competitively by palmitoyl CoA at concentrations higher than 20 microns, and was stimulated at concentrations between 2 microns and 10 mic...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133951
更新日期:1982-08-01 00:00:00
abstract::The ATP requirement for two steps of DNA replication, the synthesis and subsequent joining of Okazaki fragments, was investigated by using isolated HeLa cell nuclei. Among adenine nucleotides tested, high levels of dATP and ADP stimulated DNA synthesis. In the presence of high levels of ATP, the addition of high level...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133262
更新日期:1981-03-01 00:00:00