Abstract：
:In vitro experiments led to a simple model in which basal transcription factors sequentially assembled with RNA Polymerase II to generate a preinitiation complex (PIC). Emerging evidence indicates that PIC composition is not universal, but promoter-dependent. Active promoters are occupied by a mixed population of complexes, including regulatory factors such as NC2, Mot1, Mediator, and TFIIS. Recent studies are expanding our understanding of the roles of these factors, demonstrating that their functions are both broader and more context dependent than previously realized.
journal_name
Curr Opin Cell Bioljournal_title
Current opinion in cell biologyauthors
Sikorski TW,Buratowski Sdoi
10.1016/j.ceb.2009.03.006subject
Has Abstractpub_date
2009-06-01 00:00:00pages
344-51issue
3eissn
0955-0674issn
1879-0410pii
S0955-0674(09)00076-3journal_volume
21pub_type
杂志文章,评审abstract：:Several proteins involved in exocytosis have been identified recently, but it is still completely unclear which molecules perform the fusion event itself. Although in viral fusion the fusion proteins are known, even there the molecular mechanism remains controversial. Investigation of single fusion events by electroph...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(95)80007-7
更新日期：1995-08-01 00:00:00
abstract：:The histones which pack new DNA during the S phase of animal cells are made from mRNAs that are cleaved at their 3' end but not polyadenylated. Some of the factors used in this reaction are unique to it while others are shared with the polyadenylation process that generates all other mRNAs. Recent work has begun to sh...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2016.01.015
更新日期：2016-06-01 00:00:00
abstract：:Mitochondria provide an essential role in the maintenance of cellular homeostasis with regard to energy generation, redox signaling, and programmed cell death. Consequently, fast adaptation to metabolic changes associated with developmental demands or stress induction requires a balanced coordination of mitochondrial ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2015.08.004
更新日期：2015-12-01 00:00:00
abstract：:Asymmetric cell division (ACD) is the fundamental process through which one cell divides into two cells with different fates. In animals, it is crucial for the generation of cell-type diversity and for stem cells, which use ACD both to self-renew and produce one differentiating daughter cell. One of the most prominent...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.07.018
更新日期：2020-02-01 00:00:00
abstract：:Modulation of energy metabolism is emerging as a key aspect associated with cell fate transition. The establishment of a correct metabolic program is particularly relevant for neural cells given their high bioenergetic requirements. Accordingly, diseases of the nervous system commonly involve mitochondrial impairment....
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2017.12.004
更新日期：2017-12-01 00:00:00
abstract：:The epithelial apical-junctional complex is a key regulator of cellular functions. In addition, it is an important target for microbial pathogens that manipulate the cell to survive, proliferate and sometimes persist within a host. Out of a myriad of potential molecular targets, some bacterial and viral pathogens have...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2003.12.002
更新日期：2004-02-01 00:00:00
abstract：:Several GPCRs, including receptors previously thought to signal primarily from the cell surface, have been recently shown to signal from many intracellular compartments. This raises the idea that signaling by any given receptor is spatially encoded in the cell, with distinct sites of signal origin dictating distinct d...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2018.12.006
更新日期：2019-04-01 00:00:00
abstract：:The pancreas is derived from the foregut endoderm during embryonic development. After gastrulation and endoderm germ layer formation complex morphogenetic events coupled with cell differentiation programs pattern the gut tube and induce pancreas organogenesis. This results in formation of exocrine, ductal and hormone-...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.07.002
更新日期：2019-12-01 00:00:00
abstract：:Many receptors that sense the environment effect intracellular regulation through stimulation of heterotrimeric G proteins and the consequences thereof. While prominence was originally given to the alpha-subunits of G proteins as the pathway for downstream regulation, very active roles for the beta gamma-subunits have...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(94)90136-8
更新日期：1994-04-01 00:00:00
abstract：:The eukaryotic endomembrane system is responsible for the biosynthesis and transport of proteins and lipids, and for the definition of the major subcellular compartments. Recent work indicates that the endomembrane system is ancient, with near modern complexity predating the radiation of the major eukaryotic lineages....
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2008.12.004
更新日期：2009-02-01 00:00:00
abstract：:Evolution of the mammalian sex chromosomes heavily impacts on the expression of X-encoded genes, both in marsupials and placental mammals. The loss of genes from the Y chromosome forced a two-fold upregulation of dose sensitive X-linked homologues. As a corollary, female cells would experience a lethal dose of X-linke...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2012.02.004
更新日期：2012-06-01 00:00:00
abstract：:Chaperones are centrally involved in the control of protein structure, function, localization and transport. A flurry of scientific activity continues to examine the molecular nature of chaperone-substrate recognition and the role of auxiliary chaperones (cohort proteins) and small molecules that expedite these proces...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(92)90130-5
更新日期：1992-12-01 00:00:00
abstract：:Studies of various membrane trafficking steps over the past year indicate that membranes are tethered together prior to the interaction of v-SNAREs and t-SNAREs across the membrane junction. The tethering proteins identified to date are quite large, being either fibrous proteins or multimeric protein complexes. The te...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(99)80065-9
更新日期：1999-08-01 00:00:00
abstract：:A number of proteins that are necessary for membrane transport have been identified using cell-free assays and yeast genetics. Although our knowledge of transport mechanisms remains limited, common themes are clearly emerging. In particular, specific GTP-binding proteins appear to be involved, not only at all steps of...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(92)90077-p
更新日期：1992-08-01 00:00:00
abstract：:Genetic analysis in model organisms has recently achieved a detailed molecular description of many key cellular processes controlling embryonic morphogenesis. To understand higher order tissue morphogenesis, we now need to define how these processes become integrated across different cell groups and cell layers. Here,...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2010.08.011
更新日期：2010-10-01 00:00:00
abstract：:The hetero-hexameric origin recognition complex (ORC) is well known for its separable roles in DNA replication and heterochromatin assembly. However, ORC and its individual subunits have been implicated in diverse cellular activities in both the nucleus and the cytoplasm. Some of ORC's implied functions, such as cell ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2007.04.007
更新日期：2007-06-01 00:00:00
abstract：:The multimolecular WAVE regulatory (WRC) and Arp2/3 complexes are primarily responsible to generate pushing forces at migratory leading edges by promoting branch elongation of actin filaments. The architectural complexity of these units betrays the necessity to impose a tight control on their activity. This is exerted...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2013.04.001
更新日期：2013-10-01 00:00:00
abstract：:Extracellular matrix (ECM) induces and maintains the differentiation of epithelial cells, not by totally altering their state of differentiation, but by activating overt differentiation. Recent studies of cultured mammary cells provide an elegant molecular analysis of this kind of progressive cell differentiation. Oth...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(93)90088-8
更新日期：1993-12-01 00:00:00
abstract：:There is accumulating evidence that lateral assemblies (rafts) of sphingolipids and cholesterol form platforms that serve to support numerous cellular events in membrane traffic and signal transduction. Raft membrane microdomains are thought to function by preferentially associating with specific proteins while exclud...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(97)80030-0
更新日期：1997-08-01 00:00:00
abstract：:Integrins are heterodimeric transmembrane receptors that connect the extracellular matrix environment to the actin cytoskeleton via adaptor molecules through assembly of a range of adhesion structures. Recent advances in biochemical, imaging and biophysical methods have enabled a deeper understanding of integrin signa...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.12.008
更新日期：2020-04-01 00:00:00
abstract：:Acetyl-CoA represents a key node in metabolism due to its intersection with many metabolic pathways and transformations. Emerging evidence reveals that cells monitor the levels of acetyl-CoA as a key indicator of their metabolic state, through distinctive protein acetylation modifications dependent on this metabolite....
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2015.02.003
更新日期：2015-04-01 00:00:00
abstract：:Rab GTPases and their regulatory proteins play a crucial role in vesicle-mediated membrane trafficking. During vesicle membrane tethering Rab GTPases are activated by GEFs (guanine nucleotide exchange factors) and then inactivated by GAPs (GTPase activating proteins). Recent evidence shows that in addition to activati...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.03.004
更新日期：2019-08-01 00:00:00
abstract：:Inability to meet protein folding demands within the endoplasmic reticulum (ER) activates the unfolded protein response (UPR), a signaling pathway with both adaptive and apoptotic outputs. While some secretory cell types have a remarkable ability to increase protein folding capacity, their upper limits can be reached ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2010.11.003
更新日期：2011-04-01 00:00:00
abstract：:The shaping of the vertebrate embryonic body plan depends heavily on the narrowing and lengthening (convergence and extension) of embryonic tissues by cell intercalation, a process by which cells actively crawl between one another along the axis of convergence to produce a narrower, longer array. We discuss recent evi...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2010.07.012
更新日期：2010-10-01 00:00:00
abstract：:Dystroglycan provides a crucial linkage between the cytoskeleton and the basement membrane for skeletal muscle cells. Disruption of this linkage leads to various forms of muscular dystrophy. Significant recent advances in understanding the structure and function of dystroglycan include detailed in vitro and in vivo an...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(96)80103-7
更新日期：1996-10-01 00:00:00
abstract：:Several recent scientific and technical developments have made it possible to postulate the use of the 'magic bullet' concept; that is, the identification of specific antigens present on tumor cells that can be targeted either by therapeutic antibodies or by small molecules. The use of monoclonal antibodies in cancer,...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(03)00106-6
更新日期：2003-10-01 00:00:00
abstract：:Flowers and shoots are derived from specialized groups of stem cells termed meristems. Recent studies in Arabidopsis have identified factors that contribute to meristem structure and identity, such as CLAVATA1, CLAVATA3, and SHOOTMERISTEMLESS, which act in both shoot and flower meristems, as well as LEAFY and APETALA1...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(96)80089-5
更新日期：1996-12-01 00:00:00
abstract：:The past year has witnessed refinements in models of spliceosome assembly pathways and in the understanding of how splicing factors of the serine/arginine-rich (SR) protein family function. The role of splicing in human genetic diseases has also received a lot of attention recently as exonic splicing enhancers become ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00212-x
更新日期：2001-06-01 00:00:00
abstract：:The number and variety of factors underlying control of gene expression have been frequently underestimated. Non-coding RNAs generated through pervasive transcription have recently been implicated in shaping the transcriptional landscape in different organisms from bacteria to higher eukaryotes, adding a previously un...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2015.04.011
更新日期：2015-06-01 00:00:00
abstract：:Recent evidence on the distribution of desmosomal glycoprotein isoforms that shows their combined expression in individual desmosomes has strengthened the belief that the latter are involved in epithelial differentiation and morphogenesis. It has been shown that cellular interactions and protein kinase C can modulate ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(96)80108-6
更新日期：1996-10-01 00:00:00
