SK2 encodes the apamin-sensitive Ca(2+)-activated K(+) channels in the human leukemic T cell line, Jurkat.

Abstract:

:T cells express two different types of voltage-independent Ca(2+)-activated K(+) channels with small (SK) and intermediate (IK) conductance that serve important roles in the activation of T lymphocytes. In contrast to the IK channels from T lymphocytes which are upregulated upon mitogen stimulation, SK channels of Jurkat T cells, a human leukemic T cell line, are constitutively expressed even in the absence of mitogenic stimulation. We have used patch-clamp recordings from transfected or injected mammalian cells to show that the cloned SK2 channel demonstrates the biophysical and pharmacological properties of the majority of K(Ca) channels in Jurkat T cells. The cloned and native channels are voltage-independent, Ca(2+)-activated, apamin-sensitive, show an equivalent voltage-dependent Ba(2+) block and possess a similar ion selectivity. In addition, we used the polymerase chain reaction to demonstrate the presence of SK2 mRNA in Jurkat T cells, whereas SK3 transcripts encoding the other cloned apamin-sensitive SK channel were not detected. These data suggest that the voltage-independent apamin-sensitive K(Ca) channel in Jurkat T cells represents the recently cloned SK2 channel.

journal_name

FEBS Lett

journal_title

FEBS letters

authors

Jäger H,Adelman JP,Grissmer S

doi

10.1016/s0014-5793(00)01236-9

keywords:

subject

Has Abstract

pub_date

2000-03-10 00:00:00

pages

196-202

issue

2-3

eissn

0014-5793

issn

1873-3468

pii

S0014-5793(00)01236-9

journal_volume

469

pub_type

杂志文章
  • Alternative splicing within the TGF-beta type I receptor gene (ALK-5) generates two major functional isoforms in vascular smooth muscle cells.

    abstract::We have identified in rat vascular smooth muscle cells (SMCs) the simultaneous expression of two TGF-beta type I receptor (ALK-5) cDNAs, occurring as a consequence of alternate usage of AG splice acceptor motifs separated by 12 nucleotides located at an intron-exon junction. When translated the resultant full length p...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/s0014-5793(00)01132-7

    authors: Agrotis A,Condron M,Bobik A

    更新日期:2000-02-04 00:00:00

  • Modulation of the DNA binding activity of transcription factors CREP, NFkappaB and HSF by H2O2 and TNF alpha. Differences between in vivo and in vitro effects.

    abstract::Human endothelial cells exposed to H2O2 showed reduced CREP DNA binding activity, enhanced HSF activation, and no induction of NFkappaB binding activity. Interestingly, H2O2 was able to induce NFkappaB subunit p65 translocation in the nucleus. In contrast, cells exposed to TNF alpha showed enhanced CREP binding activi...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/s0014-5793(97)01244-1

    authors: Jornot L,Petersen H,Junod AF

    更新日期:1997-10-27 00:00:00

  • Selective control of cytosolic glutathione peroxidase and phospholipid hydroperoxide glutathione peroxidase mRNA stability by selenium supply.

    abstract::Selenium depletion of H4 hepatoma cells reduced cytosolic glutathione peroxidase (cGSH-Px) mRNA abundance but had no effect on phospholipid hydroperoxide glutathione peroxidase (PHGSH-Px) mRNA abundance. Actinomycin D chase experiments showed that selenium depletion had no effect on the stability of PHGSH-Px mRNA but ...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(96)00493-0

    authors: Bermano G,Arthur JR,Hesketh JE

    更新日期:1996-06-03 00:00:00

  • Revisiting the odorant-binding protein LUSH of Drosophila melanogaster: evidence for odour recognition and discrimination.

    abstract::LUSH is a soluble odorant-binding protein of the fruit fly Drosophila melanogaster. Mutants not expressing this protein have been reported to lack the avoidance behaviour, exhibited by wild type flies, to high concentrations of ethanol. Very recently, the three-dimensional structure of LUSH complexed with short-chain ...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/S0014-5793(03)01521-7

    authors: Zhou JJ,Zhang GA,Huang W,Birkett MA,Field LM,Pickett JA,Pelosi P

    更新日期:2004-01-30 00:00:00

  • Promoted evolution of a shortened variant of heme A synthase in the membrane of Bacillus subtilis.

    abstract::Bacillus subtilis heme A synthase is a membrane protein with 8 transmembrane segments. By using a two-step mutagenesis approach we have generated and selected a fully functional enzyme protein variant with a seven residue internal deletion. The biochemical properties of the shortened variant are similar to those of th...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/j.febslet.2008.03.015

    authors: Lewin A,Hederstedt L

    更新日期:2008-04-16 00:00:00

  • Identification of the genes responsive to etoposide-induced apoptosis: application of DNA chip technology.

    abstract::DNA chip technology was used in an attempt to identify target genes responsible for apoptosis induced by etoposide, a p53 activating topoisomerase II inhibitor used clinically as an antitumor agent. 62 Individual mRNAs whose mass changed significantly were identified after screening oligonucleotide arrays capable of d...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/s0014-5793(99)00136-2

    authors: Wang Y,Rea T,Bian J,Gray S,Sun Y

    更新日期:1999-02-26 00:00:00

  • Occurrence of heme O in photoheterotrophically growing, semi-anaerobic cyanobacterium Synechocystis sp. PCC6803.

    abstract::Extraction and identification of the non-covalently bound heme groups from crude membrane preparations of photoheterotrophically grown Synechocystis sp. PCC 6803 by reversed phase high performance liquid chromatography and optical spectrophotometry led to the detection of heme O in addition to hemes B and A which latt...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(95)00821-p

    authors: Peschek GA,Wastyn M,Fromwald S,Mayer B

    更新日期:1995-09-04 00:00:00

  • Amino acid sequence of the oligomycin sensitivity-conferring protein (OSCP) of beef-heart mitochondria and its homology with the delta-subunit of the F1-ATPase of Escherichia coli.

    abstract::The complete amino acid sequence of the oligomycin sensitivity-conferring protein (OSCP) of beef-heart mitochondria is reported. The protein contains 190 amino acids and has a molecular mass of 20 967. Its structure is characterized by a concentration of charged amino acids in the two terminal segments (N 1-77 and C 1...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(84)80036-8

    authors: Ovchinnikov YA,Modyanov NN,Grinkevich VA,Aldanova NA,Trubetskaya OE,Nazimov IV,Hundal T,Ernster L

    更新日期:1984-01-23 00:00:00

  • The three-dimensional solution structure of a constrained peptidomimetic in water and in chloroform. Observation of solvent induced hydrophobic cluster.

    abstract::A large number of protein-protein interactions involved turn or loop regions. The excised linear peptides from these regions reveal complex conformational averaging. To circumvent this motional averaging and to stabilize the beta-turn conformation, extensive effort has been devoted to the design of constrained peptido...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(95)00007-v

    authors: Lee MS,Gardner B,Kahn M,Nakanishi H

    更新日期:1995-02-13 00:00:00

  • Membrane-bound apolipoprotein B is exposed at the cytosolic surface of liver microsomes.

    abstract::We have used a competitive enzyme-linked immunoassay with a panel of monoclonal antibodies to probe the topography of the membrane-bound form of apolipoprotein B (apo B) in rabbit microsomes. All epitopes investigated were found to be expressed at the cytosolic side of the microsomal membrane under conditions in which...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(92)80581-z

    authors: Wilkinson J,Higgins JA,Groot PH,Gherardi E,Bowyer DE

    更新日期:1992-06-08 00:00:00

  • Lymphotoxin α, a novel target of posttranscriptional gene regulation by HuR in HepG2 cells.

    abstract::The role of the RNA-binding protein human antigen R (HuR) in hepatocarcinogenesis is still elusive. By employing short hairpin (sh)RNA-dependent knockdown approach, we demonstrate that lymphotoxin α (LTα) is a target of posttranscriptional gene regulation by HuR in hepatocellular carcinoma (HepG2) cells. Consequently,...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/j.febslet.2015.05.015

    authors: Steinmeyer N,Doller A,Biyanee A,Brauss T,Schmid T,Pfeilschifter J,Eberhardt W

    更新日期:2015-07-08 00:00:00

  • Ycf1p attenuates basal level oxidative stress response in Saccharomyces cerevisiae.

    abstract::Ycf1p function is regulated by casein kinase 2α, Cka1p, via phosphorylation of Ser251. Cka1p-mediated phosphorylation of Ycf1p is attenuated in response to high salt stress. Previous results from our lab suggest a role for Ycf1p in cellular resistance to salt stress. Here, we show that Ycf1p plays an important role in...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/j.febslet.2012.02.010

    authors: Paumi CM,Pickin KA,Jarrar R,Herren CK,Cowley ST

    更新日期:2012-03-23 00:00:00

  • Linkage between phosphorylated cystatin alpha and filaggrin by epidermal transglutaminase as a model of cornified envelope and inhibition of cathepsin L activity by cornified envelope and the conjugated cystatin alpha.

    abstract::Lysine-rich phosphorylated cystatin alpha (P-cystatin alpha) from newborn rat epidermis is a good substrate for epidermal transglutaminase (TGase) and also one of the component proteins of cornified envelope in the stratum corneum. Since the filaggrin linker segment peptide was efficiently conjugated with P-cystatin a...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(94)80131-2

    authors: Takahashi M,Tezuka T,Kakegawa H,Katunuma N

    更新日期:1994-03-07 00:00:00

  • Sequence requirements for splicing by the Cne PRP8 intein.

    abstract::The dependence of protein splicing on conserved residues of the Cne PRP8 intein was assessed by alanine scanning mutagenesis in a foreign protein context. Corroboration was obtained for the involvement of residues at the splice junctions and of the conserved threonine and histidine of motif B. Five additional residues...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/j.febslet.2007.05.060

    authors: Pearl EJ,Tyndall JD,Poulter RT,Wilbanks SM

    更新日期:2007-06-26 00:00:00

  • A phosphoglycerate to inorganic phosphate ratio is the major factor in controlling starch levels in chloroplasts via ADP-glucose pyrophosphorylase regulation.

    abstract::Purified barley leaf ADP-glucose pyrophosphorylase, a key enzyme of the starch synthesis in the chloroplast stroma, was analysed with respect to its possible regulation by factors defining the metabolic/effector status of the chloroplast during light and dark conditions. The enzyme required 3-phosphoglyceric acid for ...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/s0014-5793(99)00346-4

    authors: Kleczkowski LA

    更新日期:1999-04-01 00:00:00

  • A role for a pertussis toxin-sensitive trimeric G-protein in store-operated Ca2+ inflow in hepatocytes.

    abstract::The mechanism of store-operated Ca2+ inflow in hepatocytes was investigated using fluo-3 and fura-2 to monitor changes in the concentration of intracellular free Ca2+ in single cells, and 1-(alpha-glycerophosphoryl)-myo-inositol 4,5-diphosphate, P4(5)-1-(2-nitrophenyl)ethyl ester ('caged' GPIP2) and 'caged' guanosine ...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(94)00481-1

    authors: Berven LA,Barritt GJ

    更新日期:1994-06-13 00:00:00

  • Phospholipid phase transitions in homogeneous nanometer scale bilayer discs.

    abstract::Nanoscale protein supported phospholipid bilayer discs, or Nanodiscs, were produced for the purpose of studying the phase transition behavior of the incorporated lipids. Nanodiscs and vesicles were prepared with two phospholipids, dipalmitoyl phosphatidylcholine and dimyristoyl phosphatidylcholine, and the phase trans...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/s0014-5793(03)01400-5

    authors: Shaw AW,McLean MA,Sligar SG

    更新日期:2004-01-02 00:00:00

  • Absence of a unique relationship between active transport of lactose and protonmotive force in E. coli.

    abstract::The relationship between active transport of lactose via the lactose permease and the protonmotive force has been determined in E. coli cells using either the respiratory chain inhibitor cyanide or protonophores to decrease the protonmotive force progressively. In contradiction with the prediction of the delocalized c...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(86)81136-x

    authors: Ghazi A,Delamourd L,Shechter E

    更新日期:1986-12-15 00:00:00

  • Involvement of nitric oxide in the promotion of cell survival by ceramide 1-phosphate.

    abstract::Macrophages play vital roles in inflammatory responses, and their number at sites of inflammation is strictly regulated by cell death and division. Here, we demonstrate that production of nitric oxide (NO) is a major mechanism whereby ceramide-1-phosphate (C1P) blocks apoptosis in macrophages. However, NO failed to st...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/j.febslet.2008.05.027

    authors: Gangoiti P,Granado MH,Arana L,Ouro A,Gómez-Muñoz A

    更新日期:2008-06-25 00:00:00

  • Isolation and characterization of multiple isoforms of the rat urokinase receptor in osteoblasts.

    abstract::A rat urokinase receptor (uPAR) cDNA fragment was amplified by RT-PCR from RNA of the rat osteoblastic cell line CFK-1. Using this DNA species as a hybridization probe two rat uPAR cDNAs were isolated from a CFK-1 cDNA library. These two cDNAs encode an identical uPAR protein except for a single base mutation which re...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(94)80118-5

    authors: Rabbani SA,Rajwans N,Achbarou A,Murthy KK,Goltzman D

    更新日期:1994-01-24 00:00:00

  • The transcriptional activator GaaR of Aspergillus niger is required for release and utilization of d-galacturonic acid from pectin.

    abstract::We identified the d-galacturonic acid (GA)-responsive transcriptional activator GaaR of the saprotrophic fungus, Aspergillus niger, which was found to be essential for growth on GA and polygalacturonic acid (PGA). Growth of the ΔgaaR strain was reduced on complex pectins. Genome-wide expression analysis showed that Ga...

    journal_title:FEBS letters

    pub_type: 信件

    doi:10.1002/1873-3468.12211

    authors: Alazi E,Niu J,Kowalczyk JE,Peng M,Aguilar Pontes MV,van Kan JA,Visser J,de Vries RP,Ram AF

    更新日期:2016-06-01 00:00:00

  • In vitro expressed dystrophin fragments do not associate with each other.

    abstract::Dystrophin, a component of the muscle membrane cytoskeleton, is the protein altered in Duchenne Muscular Dystrophy (DMD) and Becker Muscular Dystrophy (BMD). Dystrophin shares significant homology with other cytoskeletal proteins, such as alpha-actinin and spectrin. On the basis of its sequence similarity with alpha-a...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/s0014-5793(97)00454-7

    authors: Chan Y,Kunkel LM

    更新日期:1997-06-30 00:00:00

  • The activity of cAMP-phosphodiesterase 4D7 (PDE4D7) is regulated by protein kinase A-dependent phosphorylation within its unique N-terminus.

    abstract::The cyclic AMP phosphodiesterases type 4 (PDE4s) are expressed in a cell specific manner, with intracellular targeting directed by unique N-terminal anchor domains. All long form PDE4s are phosphorylated and activated by PKA phosphorylation within their upstream conserved region 1 (UCR1). Here, we identify and charact...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/j.febslet.2015.02.004

    authors: Byrne AM,Elliott C,Hoffmann R,Baillie GS

    更新日期:2015-03-12 00:00:00

  • Ribonuclease T1 has different dimensions in the thermally and chemically denatured states: a dynamic light scattering study.

    abstract::Ribonuclease T1 can be unfolded and refolded without forming noticeable amounts of aggregates allowing to characterise the dimensions of a protein in different denatured states in terms of the Stokes radius RS. Upon thermal unfolding RS increases from 1.74 nm at 20 degrees C to 2.14 nm at 60 degrees C. By contrast, RS...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/s0014-5793(97)00058-6

    authors: Gast K,Zirwer D,Damaschun H,Hahn U,Müller-Frohne M,Wirth M,Damaschun G

    更新日期:1997-02-24 00:00:00

  • Structural modelling of the complex of leucyl-tRNA synthetase and mis-aminoacylated tRNALeu.

    abstract::To assure fidelity of translation, class Ia aminoacyl-tRNA synthetases (aaRSs) edit mis-aminoacylated tRNAs. Mis-attached amino acids and structural water molecules are not included simultaneously in the current crystal structures of the aaRSctRNA complexes, where the 3'-ends (adenine 76; A76) are bound to the editing...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/j.febslet.2009.01.049

    authors: Hagiwara Y,Nureki O,Tateno M

    更新日期:2009-02-18 00:00:00

  • Rapid isolation of animal mitochondrial DNA by alkaline extraction.

    abstract::A simple technique for rapid isolation of mitochondrial DNA (mtDNA) from animal cells is described. The method is based on the selective alkaline denaturation procedure of Birnboim and Doly [(1979) Nucleic Acids Res. 7, 1513-1523] and avoids the use of CsCl gradient centrifugation. The yield of mtDNA is comparable to ...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(85)80122-8

    authors: Palva TK,Palva ET

    更新日期:1985-11-18 00:00:00

  • Chemical synthesis and biological activity of a novel antibacterial peptide deduced from a pig myeloid cDNA.

    abstract::Several myeloid precursors of antibacterial peptides have recently been shown to share homologous pre- and pro-regions. Taking advantage of this homology, a novel cDNA was cloned from pig bone marrow RNA. This encodes a 166-residue polypeptide with highly conserved pre- (29 residues) and pro- (101 residues) sequences,...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(94)80214-9

    authors: Storici P,Scocchi M,Tossi A,Gennaro R,Zanetti M

    更新日期:1994-01-17 00:00:00

  • Adsorption of human lysozyme onto hydroxyapatite. Identification of its adsorbing site using site-directed mutagenesis.

    abstract::To elucidate hydroxyapatite-protein interaction, mutant human lysozymes in which the surface charge was modified by site-directed mutagenesis were used. Five mutant human lysozymes (K1A, K13A, K33A, R10A, R14A) were expressed in yeast. The chromatographic behavior of these lysozymes was studied with a HPLC hydroxyapat...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/s0014-5793(97)01621-9

    authors: Aizawa T,Koganesawa N,Kamakura A,Masaki K,Matsuura A,Nagadome H,Terada Y,Kawano K,Nitta K

    更新日期:1998-01-30 00:00:00

  • Purification and characterization of phospholipase A2 inhibitory proteins from pig thyroid gland.

    abstract::A 32 kDa phospholipase A2 inhibitory protein was isolated from pig thyroid gland after calcium precipitation and fast protein liquid anion-exchange chromatography. SDS-polyacrylamide gel electrophoresis revealed the purity of the protein. The protein activity was assessed by the inhibition of pancreatic phospholipase ...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/0014-5793(88)81273-0

    authors: Antonicelli F,Rothhut B,Martiny L,Aguie-Aguie G,Lambert B,Bellon G,Russo-Marie F,Jacquemin C,Haye B

    更新日期:1988-08-01 00:00:00

  • Efficient delivery of siRNA into cytokine-stimulated insulinoma cells silences Fas expression and inhibits Fas-mediated apoptosis.

    abstract::Fas/FasL interactions have been proposed as a potentially important mechanism mediating beta-cell death in type 1 diabetes. Recent investigations suggest RNA interference, afforded by small interfering RNAs (siRNA), can provide specific and robust gene silencing in mammalian cells. The current study attempted to inves...

    journal_title:FEBS letters

    pub_type: 杂志文章

    doi:10.1016/j.febslet.2005.12.068

    authors: Burkhardt BR,Lyle R,Qian K,Arnold AS,Cheng H,Atkinson MA,Zhang YC

    更新日期:2006-01-23 00:00:00