Sterol trafficking between the endoplasmic reticulum and plasma membrane in yeast.

Abstract:

:We recently showed that transport of ergosterol from the ER (endoplasmic reticulum) to the sterol-enriched PM (plasma membrane) in yeast occurs by a non-vesicular (Sec18p-independent) mechanism that results in the equilibration of sterol pools in the two organelles [Baumann, Sullivan, Ohvo-Rekilä, Simonot, Pottekat, Klaassen, Beh and Menon (2005) Biochemistry 44, 5816-5826]. To explore how this occurs, we tested the role of proteins that might act as sterol transporters. We chose to study oxysterol-binding protein homologues (Osh proteins), a family of seven proteins in yeast, all of which contain a putative sterol-binding pocket. Recent structural analyses of one of the Osh proteins [Im, Raychaudhuri, Prinz and Hurley (2005) Nature (London) 437, 154-158] suggested a possible transport cycle in which Osh proteins could act to equilibrate ER and PM pools of sterol. Our results indicate that the transport of newly synthesized ergosterol from the ER to the PM in an OSH deletion mutant lacking all seven Osh proteins is slowed only 5-fold relative to the isogenic wild-type strain. Our results suggest that the Osh proteins are not sterol transporters themselves, but affect sterol transport in vivo indirectly by affecting the ability of the PM to sequester sterols.

journal_name

Biochem Soc Trans

authors

Sullivan DP,Ohvo-Rekilä H,Baumann NA,Beh CT,Menon AK

doi

10.1042/BST0340356

subject

Has Abstract

pub_date

2006-06-01 00:00:00

pages

356-8

issue

Pt 3

eissn

0300-5127

issn

1470-8752

pii

BST0340356

journal_volume

34

pub_type

杂志文章,评审
  • Controlling embryonic stem cell proliferation and pluripotency: the role of PI3K- and GSK-3-dependent signalling.

    abstract::ESCs (embryonic stem cells) are derived from the inner cell mass of pre-implantation embryos and are pluripotent, meaning they can differentiate into all of the cells that make up the adult organism. This property of pluripotency makes ESCs attractive as a model system for studying early development and for the genera...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0390674

    authors: Welham MJ,Kingham E,Sanchez-Ripoll Y,Kumpfmueller B,Storm M,Bone H

    更新日期:2011-04-01 00:00:00

  • The amazing diversity of cap-independent translation elements in the 3'-untranslated regions of plant viral RNAs.

    abstract::Many plant viral RNAs lack the 5'-cap structure that is required on all host mRNAs for interacting with essential translation initiation factors. Instead, uncapped viral RNAs take over the host translation machinery by harbouring sequences that functionally replace the 5'-cap. Recent reports reveal at least eight diff...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0351629

    authors: Miller WA,Wang Z,Treder K

    更新日期:2007-12-01 00:00:00

  • Nucleosome recognition and spacing by chromatin remodelling factor ISW1a.

    abstract::Nucleosomes are actively positioned along DNA by ATP-dependent, chromatin remodelling factors. A structural model for the ISW1a chromatin remodelling factor from Saccharomyces cerevisiae in complex with a dinucleosome substrate was constructed from the X-ray structures of ISW1a (ΔATPase) with and without DNA bound, tw...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章

    doi:10.1042/BST20110748

    authors: Richmond TJ

    更新日期:2012-04-01 00:00:00

  • Studying biomolecular complexes with pulsed electron-electron double resonance spectroscopy.

    abstract::The function of biomolecules is intrinsically linked to their structure and the complexes they form during function. Techniques for the determination of structures and dynamics of these nanometre assemblies are therefore important for an understanding on the molecular level. PELDOR (pulsed electron-electron double res...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0390128

    authors: Reginsson GW,Schiemann O

    更新日期:2011-01-01 00:00:00

  • VEGF signalling: integration and multi-tasking in endothelial cell biology.

    abstract::The central role of VEGF (vascular endothelial growth factor A) in angiogenesis is dependent upon its ability to co-ordinately regulate multiple endothelial functions. The multifunctionality of VEGF at the cellular level results from its ability to initiate a diverse, complex and integrated network of signalling pathw...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/bst0311171

    authors: Zachary I

    更新日期:2003-12-01 00:00:00

  • Immunoglobulin-binding domains: Protein L from Peptostreptococcus magnus.

    abstract::Protein L is a multidomain cell-wall protein isolated from Peptostreptococcus magnus. It belongs to a group of proteins that contain repeated domains that are able to bind to Igs without stimulating an immune response, the most characterized of this group being Protein A ( Staphylococcus aureus ) and Protein G ( Strep...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/bst0310716

    authors: Housden NG,Harrison S,Roberts SE,Beckingham JA,Graille M,Stura E,Gore MG

    更新日期:2003-06-01 00:00:00

  • Oestrogens and their promiscuous receptors: confronting reality.

    abstract::The binding sites of the oestrogen receptors alpha and beta have a structural requirement for ligands with two oxygen atoms (one of which is phenolic) spaced 11-12 A apart. They are open to many non-steroidal compounds, such as those from plants and the chemical industry. The importance of this interaction is the subj...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/0300-5127:0290231

    authors: Barnes S

    更新日期:2001-05-01 00:00:00

  • Cell-free synthetic biology for in vitro prototype engineering.

    abstract::Cell-free transcription-translation is an expanding field in synthetic biology as a rapid prototyping platform for blueprinting the design of synthetic biological devices. Exemplar efforts include translation of prototype designs into medical test kits for on-site identification of viruses (Zika and Ebola), while gene...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST20170011

    authors: Moore SJ,MacDonald JT,Freemont PS

    更新日期:2017-06-15 00:00:00

  • Insight into stability of CotA laccase from the spore coat of Bacillus subtilis.

    abstract::The axial ligand of the catalytic mononuclear T1 copper site (Met(502)) of the CotA laccase was replaced by a leucine or phenylalanine residue to increase the redox potential of the enzyme. These mutations led to an increase in the redox potential by approx. 100 mV relative to the wild-type enzyme but the catalytic co...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0351579

    authors: Melo EP,Fernandes AT,Durão P,Martins LO

    更新日期:2007-12-01 00:00:00

  • The complex matter of DNA double-strand break detection.

    abstract::To maintain genomic stability, despite constant exposure to agents that damage DNA, eukaryotic cells have developed elaborate and highly conserved pathways of DNA damage sensing, signalling and repair. In this review, we concentrate mainly on what we know about DNA damage sensing with particular reference to Lcd1p, a ...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/bst0310040

    authors: Bradbury JM,Jackson SP

    更新日期:2003-02-01 00:00:00

  • The role of Bradyrhizobium japonicum nitric oxide reductase in nitric oxide detoxification in soya bean root nodules.

    abstract::The identification of nitric oxide-bound leghaemoglobin within soya bean nodules has led to the question of how Bradyrhizobium japonicum bacteroids overcome the toxicity of this nitric oxide. It has previously been shown that one candidate for nitric oxide detoxification, the respiratory nitric oxide reductase, is exp...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0340195

    authors: Meakin GE,Jepson BJ,Richardson DJ,Bedmar EJ,Delgado MJ

    更新日期:2006-02-01 00:00:00

  • Quinone-reactive proteins devoid of haem b form widespread membrane-bound electron transport modules in bacterial respiration.

    abstract::Many quinone-reactive enzyme complexes that are part of membrane-integral eukaryotic or prokaryotic respiratory electron transport chains contain one or more haem b molecules embedded in the membrane. In recent years, various novel proteins have emerged that are devoid of haem b but are thought to fulfil a similar fun...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0361011

    authors: Simon J,Kern M

    更新日期:2008-10-01 00:00:00

  • The replication protein of the Sulfolobus islandicus plasmid pRN1.

    abstract::The thermoacidophile crenarchaeote Sulfolobus ssp. is one of the best-studied Archaea. Cryptic and conjugative plasmids as well as viruses have been described for this genus. For the majority of the genetic elements only the genome sequence and the basic characteristics were determined. In contrast the fusellovirus SS...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/bst0320240

    authors: Lipps G

    更新日期:2004-04-01 00:00:00

  • Glycogen synthase kinase-3 in insulin and Wnt signalling: a double-edged sword?

    abstract::Glycogen synthase kinase-3 is an unusual protein serine/threonine kinase that, unlike most of its 500-odd relatives in the genome, is active under resting conditions and is inactivated upon cell stimulation. The two mammalian isoforms, GSK-3alpha and beta, play largely overlapping roles and have been implicated in a v...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0320803

    authors: Patel S,Doble B,Woodgett JR

    更新日期:2004-11-01 00:00:00

  • Biological consequences of statins in Candida species and possible implications for human health.

    abstract::The statins, simvastatin and atorvastatin are the most widely prescribed drugs. Statins lower cholesterol levels through their action on HMG-CoA (3-hydroxy-3-methylglutaryl-CoA) reductase, an essential enzyme for the biosynthesis of cholesterol. Fungal HMG-CoA reductases are also inhibited by statins, resulting in red...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0351529

    authors: Wikhe K,Westermeyer C,Macreadie IG

    更新日期:2007-12-01 00:00:00

  • Self-assembly in the carboxysome: a viral capsid-like protein shell in bacterial cells.

    abstract::Many proteins self-assemble to form large supramolecular complexes. Numerous examples of these structures have been characterized, ranging from spherical viruses to tubular protein assemblies. Some new kinds of supramolecular structures are just coming to light, while it is likely there are others that have not yet be...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0350508

    authors: Yeates TO,Tsai Y,Tanaka S,Sawaya MR,Kerfeld CA

    更新日期:2007-06-01 00:00:00

  • Islet amyloid polypeptide: actions and role in the pathogenesis of diabetes.

    abstract::IAPP has been postulated to have a role as a modulating factor in glucose homoeostasis and to be involved in the pathophysiology of diabetes. However, the normal physiological functions of the peptide remain obscure: exogenous IAPP acts on many experimental systems to modulate nutrient supply and metabolism but there ...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/bst0240594

    authors: Clark A,Charge SB,Badman MK,MacArthur DA,de Koning EJ

    更新日期:1996-05-01 00:00:00

  • Definitive endoderm: a key step in coaxing human embryonic stem cells into transplantable beta-cells.

    abstract::Using the Edmonton protocol, a number of patients with Type 1 diabetes mellitus have remained insulin-independent for prolonged periods of time. In spite of this success, transplantation of islets from cadaver donors will remain a therapy for very few patients owing to a lack of donors. Thus, if cell therapy should be...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0360272

    authors: Semb H

    更新日期:2008-06-01 00:00:00

  • The role of Rab GTPases in the transport of vacuoles containing Legionella pneumophila and Coxiella burnetii.

    abstract::Intracellular pathogens survive in eukaryotic cells by evading a variety of host defences. To avoid degradation through the endocytic pathway, intracellular bacteria must adapt their phagosomes into protective compartments that promote bacterial replication. Legionella pneumophila and Coxiella burnetii are Gram-negati...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST20120167

    authors: Hardiman CA,McDonough JA,Newton HJ,Roy CR

    更新日期:2012-12-01 00:00:00

  • Insights from Drosophila models of Alzheimer's disease.

    abstract::AD (Alzheimer's disease) is a neurodegenerative disorder characterized by the abnormal hyperphosphorylation and aggregation of the microtubule-associated protein tau and the misfolding and deposition of Abeta peptide. The mechanisms by which tau and Abeta become abnormal is not clearly understood, neither is it known ...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0380988

    authors: Cowan CM,Shepherd D,Mudher A

    更新日期:2010-08-01 00:00:00

  • Snf1 protein kinase: a key player in the response to cellular stress in yeast.

    abstract::Sucrose non-fermenting 1 (Snf1) protein kinase, a yeast homologue of mammalian AMP-activated protein kinase, plays a main role in transcriptional activation and repression of gene expression. In addition, Snf1 kinase has a broad role in the cellular response to several forms of stress, such as nutrient limitation, sal...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/bst0310178

    authors: Sanz P

    更新日期:2003-02-01 00:00:00

  • Regulation of plant gene expression by alternative splicing.

    abstract::AS (alternative splicing) is a post-transcriptional process which regulates gene expression through increasing protein complexity and modulating mRNA transcript levels. Regulation of AS depends on interactions between trans-acting protein factors and cis-acting signals in the pre-mRNA (precursor mRNA) transcripts, ter...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0380667

    authors: Simpson CG,Manthri S,Raczynska KD,Kalyna M,Lewandowska D,Kusenda B,Maronova M,Szweykowska-Kulinska Z,Jarmolowski A,Barta A,Brown JW

    更新日期:2010-04-01 00:00:00

  • Non-genomic progesterone signalling and its non-canonical receptor.

    abstract::The steroid hormone progesterone regulates many critical aspects of vertebrate physiology. The nuclear receptor for progesterone functions as a ligand-activated transcription factor, directly regulating gene expression. This type of signalling is referred to as the 'genomic' pathway. Nevertheless, progesterone also st...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章

    doi:10.1042/BST20110638

    authors: Moussatche P,Lyons TJ

    更新日期:2012-02-01 00:00:00

  • The benefit of DNA supercoiling during replication.

    abstract::DNA topology changes dynamically during DNA replication. Supercoiling, precatenation, catenation and knotting interplay throughout the process that is finely regulated by DNA topoisomerases. In the present article, we provide an overview of theoretical and experimental approaches to understand the interplay between va...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST20120281

    authors: Schvartzman JB,Martínez-Robles ML,Hernández P,Krimer DB

    更新日期:2013-04-01 00:00:00

  • Exploiting new genome data and Internet resources for the phylogenetic analysis of proteases, substrates and inhibitors.

    abstract::Multiple alignments and phylogenetic tree constructions are established techniques for examining the evolutionary history of protease sequences in organisms such as humans, mice, fruitflies, nematode worms and yeast. They also facilitate the mapping of those conserved positions that are important for structure and cat...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0350599

    authors: Southan C

    更新日期:2007-06-01 00:00:00

  • The ESCRT machinery: new functions in viral and cellular biology.

    abstract::The ESCRT (endosomal sorting complex required for transport) machinery consists of a number of cytosolic proteins that make up three functional subcomplexes: ESCRT-I, ESCRT-II and ESCRT-III. These proteins function in multivesicular body formation and cell division and are co-opted by enveloped retroviruses to facilit...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0370195

    authors: Carlton JG,Martin-Serrano J

    更新日期:2009-02-01 00:00:00

  • Computational discovery and modeling of novel gene expression rules encoded in the mRNA.

    abstract::The transcript is populated with numerous overlapping codes that regulate all steps of gene expression. Deciphering these codes is very challenging due to the large number of variables involved, the non-modular nature of the codes, biases and limitations in current experimental approaches, our limited knowledge in gen...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章

    doi:10.1042/BST20191048

    authors: Bahiri-Elitzur S,Tuller T

    更新日期:2020-08-28 00:00:00

  • Calcium oscillations in T-cells: mechanisms and consequences for gene expression.

    abstract::[Ca(2+)](i) (intracellular Ca(2+) concentration) oscillations play a central role in the activation of T-lymphocytes by antigen. Oscillations in T-cells are absolutely dependent on Ca(2+) influx through store-operated CRAC channels (Ca(2+)-release-activated Ca(2+) channels), and evidence suggests that they arise from ...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/bst0310925

    authors: Lewis RS

    更新日期:2003-10-01 00:00:00

  • The mystery of intracellular developmental programmes and timers.

    abstract::There has been a revolution in understanding animal development in the last 25 years or so, but there is at least one area of development that has been relatively neglected and therefore remains largely mysterious. This is the intracellular programmes and timers that run in developing precursor cells and change the ce...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0340663

    authors: Raff M

    更新日期:2006-11-01 00:00:00

  • Nuclear motors and nuclear structures containing A-type lamins and emerin: is there a functional link?

    abstract::Rapid interphase chromosome territory repositioning appears to function through the action of nuclear myosin and actin, in a nuclear motor complex. We have found that chromosome repositioning when cells leave the cell cycle is not apparent in cells that have mutant lamin A or that are lacking emerin. We discuss the po...

    journal_title:Biochemical Society transactions

    pub_type: 杂志文章,评审

    doi:10.1042/BST0361384

    authors: Mehta IS,Elcock LS,Amira M,Kill IR,Bridger JM

    更新日期:2008-12-01 00:00:00