Localization and possible functions of Drosophila septins.

abstract：:We screened a human cDNA library with a probe derived from a partial SEC23 mouse homologue and isolated two different cDNA clones (hSec23A and hSec23B) encoding proteins of a predicted molecular mass of 85 kDa. hSec23Ap and hSec23Bp were 85% identical and shared 48% identity with the yeast Sec23p. Affinity-purified an...

journal_title：Molecular biology of the cell

authors： Paccaud JP,Reith W,Carpentier JL,Ravazzola M,Amherdt M,Schekman R,Orci L

更新日期：1996-10-01 00:00:00

abstract：:Ca(2+) is absorbed across intestinal epithelial monolayers via transcellular and paracellular pathways, and an active form of vitamin D(3), 1alpha,25-dihydroxyvitamin D(3) [1alpha,25(OH)(2)D(3)], is known to promote intestinal Ca(2+) absorption. However, the molecules driving the paracellular Ca(2+) absorption and its...

journal_title：Molecular biology of the cell

authors： Fujita H,Sugimoto K,Inatomi S,Maeda T,Osanai M,Uchiyama Y,Yamamoto Y,Wada T,Kojima T,Yokozaki H,Yamashita T,Kato S,Sawada N,Chiba H

更新日期：2008-05-01 00:00:00

abstract：:Polyubiquitination marks proteins for degradation by the 26S proteasome and is carried out by a cascade of enzymes that includes ubiquitin-activating enzymes (E1s), ubiquitin-conjugating enzymes (E2s), and ubiquitin ligases (E3s). The anaphase-promoting complex or cyclosome (APC/C) comprises a multisubunit ubiquitin l...

journal_title：Molecular biology of the cell

authors： Leverson JD,Joazeiro CA,Page AM,Huang Hk,Hieter P,Hunter T

更新日期：2000-07-01 00:00:00

abstract：:The gene encoding NFKB1 is autoregulated, responding to NF-kappa B/Rel activation through NF-kappa B binding sites in its promoter, which also contains putative sites for Ets proteins. One of the Ets sites, which we refer to as EBS4, is located next to an NF-kappa B/Rel binding site, kB3, which is absolutely required ...

journal_title：Molecular biology of the cell

authors： Lambert PF,Ludford-Menting MJ,Deacon NJ,Kola I,Doherty RR

更新日期：1997-02-01 00:00:00

abstract：:Tumor necrosis factor α (TNF-α) receptor-associated factor 2 (TRAF2) regulates activation of the c-Jun N-terminal kinase (JNK)/c-Jun and the inhibitor of κB kinase (IKK)/nuclear factor κB (NF-κB) signaling cascades in response to TNF-α stimulation. Gene knockout studies have revealed that TRAF2 inhibits TNF-α-induced ...

journal_title：Molecular biology of the cell

authors： Zhang L,Blackwell K,Altaeva A,Shi Z,Habelhah H

更新日期：2011-01-01 00:00:00

abstract：:Steroids and growth factors control neuronal development through their receptors under physiological and pathological conditions. We show that PC12 cells harbor endogenous androgen receptor (AR), whose inhibition or silencing strongly interferes with neuritogenesis stimulated by the nonaromatizable synthetic androgen ...

journal_title：Molecular biology of the cell

authors： Di Donato M,Bilancio A,D'Amato L,Claudiani P,Oliviero MA,Barone MV,Auricchio A,Appella E,Migliaccio A,Auricchio F,Castoria G

更新日期：2015-08-01 00:00:00

abstract：:The assembly of metazoan Sm-class small nuclear ribonucleoproteins (snRNPs) is an elaborate, step-wise process that takes place in multiple subcellular compartments. The initial steps, including formation of the core RNP, are mediated by the survival motor neuron (SMN) protein complex. Loss-of-function mutations in hu...

journal_title：Molecular biology of the cell

authors： Shpargel KB,Praveen K,Rajendra TK,Matera AG

更新日期：2009-01-01 00:00:00

abstract：:Integrin alpha 3A cytoplasmic tail phosphorylation was mapped to amino acid S1042, as determined by mass spectrometry, and confirmed by mutagenesis. This residue occurs within a "QPSXXE" motif conserved in multiple alpha chains (alpha 3A, alpha 6A, alpha 7A), from multiple species. Phosphorylation of alpha 3A and alph...

journal_title：Molecular biology of the cell

authors： Zhang XA,Bontrager AL,Stipp CS,Kraeft SK,Bazzoni G,Chen LB,Hemler ME

更新日期：2001-02-01 00:00:00

abstract：:The key regulator of entry into mitosis is the serine/threonine kinase p34cdc2. This kinase is regulated both by association with cyclins and by phosphorylation at several sites. Phosphorylation at Tyr 15 and Thr 14 are believed to inhibit the kinase activity of cdc2. In Schizosaccharomyces pombe, the wee1 (and possib...

journal_title：Molecular biology of the cell

authors： Kornbluth S,Sebastian B,Hunter T,Newport J

更新日期：1994-03-01 00:00:00

abstract：:As yeast cultures enter stationary phase in rich, glucose-based medium, differentiation of two major subpopulations of cells, termed quiescent and nonquiescent, is observed. Differences in mRNA abundance between exponentially growing and stationary-phase cultures and quiescent and nonquiescent cells are known, but lit...

journal_title：Molecular biology of the cell

authors： Davidson GS,Joe RM,Roy S,Meirelles O,Allen CP,Wilson MR,Tapia PH,Manzanilla EE,Dodson AE,Chakraborty S,Carter M,Young S,Edwards B,Sklar L,Werner-Washburne M

更新日期：2011-04-01 00:00:00

abstract：:Emerging findings suggest that two lineages of mitochondrial Ca(2+) uptake participate during active and resting states: 1) the major eukaryotic membrane potential-dependent mitochondrial Ca(2+) uniporter and 2) the evolutionarily conserved exchangers and solute carriers, which are also involved in ion transport. Alth...

journal_title：Molecular biology of the cell

authors： Hoffman NE,Chandramoorthy HC,Shanmughapriya S,Zhang XQ,Vallem S,Doonan PJ,Malliankaraman K,Guo S,Rajan S,Elrod JW,Koch WJ,Cheung JY,Madesh M

更新日期：2014-03-01 00:00:00

abstract：:Although some of the principles of N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) function are well understood, remarkably little detail is known about sec1/munc18 (SM) protein function and its relationship to SNAREs. Popular models of SM protein function hold that these proteins promote or main...

journal_title：Molecular biology of the cell

authors： Williams AL,Ehm S,Jacobson NC,Xu D,Hay JC

更新日期：2004-01-01 00:00:00

abstract：:The small G proteins Cdc42, Rac1, and Rac2 regulate the rearrangements of actin and membrane necessary for Fcgamma receptor-mediated phagocytosis by macrophages. Activated, GTP-bound Cdc42, Rac1, and Rac2 bind to the p21-binding domain (PBD) of PAK1, and this interaction provided a basis for microscopic methods to loc...

journal_title：Molecular biology of the cell

authors： Hoppe AD,Swanson JA

更新日期：2004-08-01 00:00:00

abstract：:The kinesin superfamily of microtubule motor proteins is important in many cellular processes, including mitosis and meiosis, vesicle transport, and the establishment and maintenance of cell polarity. We have characterized two related kinesins in fission yeast, klp5+ and klp6+,, that are amino-terminal motors of the K...

journal_title：Molecular biology of the cell

authors： West RR,Malmstrom T,Troxell CL,McIntosh JR

更新日期：2001-12-01 00:00:00

abstract：:Tumor cells use actin-rich protrusions called invadopodia to degrade extracellular matrix (ECM) and invade tissues; related structures, termed podosomes, are sites of dynamic ECM interaction. We show here that supervillin (SV), a peripheral membrane protein that binds F-actin and myosin II, reorganizes the actin cytos...

journal_title：Molecular biology of the cell

authors： Crowley JL,Smith TC,Fang Z,Takizawa N,Luna EJ

更新日期：2009-02-01 00:00:00

abstract：:Autophagy is a conserved eukaryotic pathway critical for cellular adaptation to changes in nutrition levels and stress. The class III phosphatidylinositol (PI)3-kinase complexes I and II (PI3KC3-C1 and -C2) are essential for autophagosome initiation and maturation, respectively, from highly curved vesicles. We used a ...

journal_title：Molecular biology of the cell

authors： Brier LW,Ge L,Stjepanovic G,Thelen AM,Hurley JH,Schekman R

更新日期：2019-04-15 00:00:00

abstract：:We examined the relative function of the two classes of guanine nucleotide exchange factors (GEFs) for ADP-ribosylation factors that regulate recruitment of coat proteins on the Golgi complex. Complementary overexpression and RNA-based knockdown approaches established that GBF1 regulates COPI recruitment on cis-Golgi ...

journal_title：Molecular biology of the cell

authors： Manolea F,Claude A,Chun J,Rosas J,Melançon P

更新日期：2008-02-01 00:00:00

abstract：:During lactation, mammary epithelial cells secrete huge amounts of milk from their apical side. The current view is that caseins are secreted by exocytosis, whereas milk fat globules are released by budding, enwrapped by the plasma membrane. Owing to the number and large size of milk fat globules, the membrane surface...

journal_title：Molecular biology of the cell

authors： Honvo-Houéto E,Henry C,Chat S,Layani S,Truchet S

更新日期：2016-10-01 00:00:00

abstract：:The spindle assembly checkpoint (SAC) is an evolutionarily conserved surveillance mechanism that delays anaphase onset and mitotic exit in response to the lack of kinetochore attachment. The target of the SAC is the E3 ubiquitin ligase anaphase-promoting complex (APC) bound to its Cdc20 activator. The Cdc20/APC comple...

journal_title：Molecular biology of the cell

authors： Chiroli E,Rancati G,Catusi I,Lucchini G,Piatti S

更新日期：2009-05-01 00:00:00

abstract：:Drosophila myosin IB (Myo1B) is one of two class I myosins in the Drosophila genome. In the larval and adult midgut enterocyte, Myo1B is present within the microvillus (MV) of the apical brush border (BB) where it forms lateral tethers between the MV membrane and underlying actin filament core. Expression of green flu...

journal_title：Molecular biology of the cell

authors： Hegan PS,Mermall V,Tilney LG,Mooseker MS

更新日期：2007-11-01 00:00:00

abstract：:McKusick-Kaufman syndrome (MKKS) is a recessively inherited human genetic disease characterized by several developmental anomalies. Mutations in the MKKS gene also cause Bardet-Biedl syndrome (BBS), a genetically heterogeneous disorder with pleiotropic symptoms. However, little is known about how MKKS mutations lead t...

journal_title：Molecular biology of the cell

authors： Hirayama S,Yamazaki Y,Kitamura A,Oda Y,Morito D,Okawa K,Kimura H,Cyr DM,Kubota H,Nagata K

更新日期：2008-03-01 00:00:00

abstract：:Ubiquitin-mediated proteolysis plays a key role in many pathways inside the cell and is particularly important in regulating cell cycle transitions. SCF (Skp1/Cul1/F-box protein) complexes are modular ubiquitin ligases whose specificity is determined by a substrate-binding F-box protein. Dia2 is a Saccharomyces cerevi...

journal_title：Molecular biology of the cell

authors： Koepp DM,Kile AC,Swaminathan S,Rodriguez-Rivera V

更新日期：2006-04-01 00:00:00

abstract：:Caveolae are vesicular invaginations of the plasma membrane. Caveolin-3 is the principal structural component of caveolae in skeletal muscle cells in vivo. We have recently generated caveolin-3 transgenic mice and demonstrated that overexpression of wild-type caveolin-3 in skeletal muscle fibers is sufficient to induc...

journal_title：Molecular biology of the cell

authors： Volonte D,Peoples AJ,Galbiati F

更新日期：2003-10-01 00:00:00

abstract：:Tetraploidization, or genome doubling, is a prominent event in tumorigenesis, primarily because cell division in polyploid cells is error-prone and produces aneuploid cells. This study investigates changes in gene expression evoked in acute and adapted tetraploid cells and their effect on cell-cycle progression. Acute...

journal_title：Molecular biology of the cell

authors： Potapova TA,Seidel CW,Box AC,Rancati G,Li R

更新日期：2016-10-15 00:00:00

abstract：:Dynamics of endocytic clathrin-coated structures can be remarkably divergent across different cell types, cells within the same culture, or even distinct surfaces of the same cell. The origin of this astounding heterogeneity remains to be elucidated. Here we show that cellular processes associated with changes in effe...

journal_title：Molecular biology of the cell

authors： Willy NM,Ferguson JP,Huber SD,Heidotting SP,Aygün E,Wurm SA,Johnston-Halperin E,Poirier MG,Kural C

更新日期：2017-11-15 00:00:00

abstract：:Candida albicans must undergo a switch from white to opaque to mate. Opaque cells then release mating type-specific pheromones that induce mating responses in opaque cells. Uniquely in C. albicans, the same pheromones induce mating-incompetent white cells to become cohesive, form an adhesive basal layer of cells on a ...

journal_title：Molecular biology of the cell

authors： Yi S,Sahni N,Daniels KJ,Pujol C,Srikantha T,Soll DR

更新日期：2008-03-01 00:00:00

abstract：:During development, coordinated cell shape changes alter tissue shape. In the Drosophila ventral furrow and other epithelia, apical constriction of hundreds of epithelial cells folds the tissue. Genes in the Gα12/13 pathway coordinate collective apical constriction, but the mechanism of coordination is poorly understo...

journal_title：Molecular biology of the cell

authors： Xie S,Mason FM,Martin AC

更新日期：2016-11-07 00:00:00

abstract：:The nuclear lamina is a key structural element of the metazoan nucleus. However, the structural organization of the major proteins composing the lamina is poorly defined. Using three-dimensional structured illumination microscopy and computational image analysis, we characterized the supramolecular structures of lamin...

journal_title：Molecular biology of the cell

authors： Shimi T,Kittisopikul M,Tran J,Goldman AE,Adam SA,Zheng Y,Jaqaman K,Goldman RD

更新日期：2015-11-05 00:00:00

abstract：:The nuclear import receptors importin β and transportin play a different role in mitosis: both act phenotypically as spatial regulators to ensure that mitotic spindle, nuclear membrane, and nuclear pore assembly occur exclusively around chromatin. Importin β is known to act by repressing assembly factors in regions di...

journal_title：Molecular biology of the cell

authors： Bernis C,Swift-Taylor B,Nord M,Carmona S,Chook YM,Forbes DJ

更新日期：2014-04-01 00:00:00

abstract：:Cilia and flagella are structurally and functionally conserved organelles present in basal as well as higher eukaryotes. The assembly of cilia requires a microtubule based scaffold called a basal body. The ninefold symmetry characteristic of basal bodies and the structurally similar centriole is organized around a hub...

journal_title：Molecular biology of the cell

authors： Culver BP,Meehl JB,Giddings TH Jr,Winey M

更新日期：2009-03-01 00:00:00