Inositol polyphosphate multikinase regulation of Trypanosoma brucei life stage development.

abstract：:Lymphocyte function-associated antigen-1 (LFA-1) and macrophage-1 antigen (Mac-1) and their counterreceptors such as intercellular cell adhesion molecules (ICAM-1 and ICAM-2), junctional adhesion molecules (JAM-A, JAM-C), and receptors for advanced glycation end products (RAGE) are crucial for promoting polymorphonucl...

journal_title：Molecular biology of the cell

authors： Li N,Yang H,Wang M,Lü S,Zhang Y,Long M

更新日期：2018-02-15 00:00:00

abstract：:Actin is involved in endocytosis in organisms ranging from yeast to mammals. In activated Xenopus eggs, exocytosing cortical granules (CGs) are surrounded by actin "coats," which compress the exocytosing compartments, resulting in compensatory endocytosis. Here, we examined the roles of two myosins in actin coat compr...

journal_title：Molecular biology of the cell

authors： Yu HY,Bement WM

更新日期：2007-10-01 00:00:00

abstract：:One of the original hypotheses of organismal longevity posits that aging is the natural result of entropy on the cells, tissues, and organs of the animal--a slow, inexorable slide into nonfunctionality caused by stochastic degradation of its parts. We now have evidence that aging is instead at least in part geneticall...

journal_title：Molecular biology of the cell

authors： DiLoreto R,Murphy CT

更新日期：2015-12-15 00:00:00

abstract：:Signaling via the Ras pathway involves sequential activation of Ras, Raf-1, mitogen-activated protein kinase kinase (MKK), and the extracellular signal-regulated (ERK) group of mitogen-activated protein (MAP) kinases. Expression from the c-Fos, atrial natriuretic factor (ANF), and myosin light chain-2 (MLC-2) promoter...

journal_title：Molecular biology of the cell

authors： Thorburn J,Carlson M,Mansour SJ,Chien KR,Ahn NG,Thorburn A

更新日期：1995-11-01 00:00:00

abstract：:Eukaryotic cell survival requires maintenance of plasma membrane (PM) homeostasis in response to environmental insults and changes in lipid metabolism. In yeast, a key regulator of PM homeostasis is target of rapamycin (TOR) complex 2 (TORC2), a multiprotein complex containing the evolutionarily conserved TOR protein ...

journal_title：Molecular biology of the cell

authors： Martinez Marshall MN,Emmerstorfer-Augustin A,Leskoske KL,Zhang LH,Li B,Thorner J

更新日期：2019-06-01 00:00:00

abstract：:All known mechanisms of mitotic spindle orientation rely on astral microtubules. We report that even in the absence of astral microtubules, metaphase spindles in MDCK and HeLa cells are not randomly positioned along their x-z dimension, but preferentially adopt shallow β angles between spindle pole axis and substratum...

journal_title：Molecular biology of the cell

authors： Lázaro-Diéguez F,Ispolatov I,Müsch A

更新日期：2015-04-01 00:00:00

abstract：:Spa2p is a nonessential protein that regulates yeast cell polarity. It localizes early to the presumptive bud site and remains at sites of growth throughout the cell cycle. To understand how Spa2p localization is regulated and to gain insight into its molecular function in cell polarity, we used a coimmunoprecipitatio...

journal_title：Molecular biology of the cell

authors： Shih JL,Reck-Peterson SL,Newitt R,Mooseker MS,Aebersold R,Herskowitz I

更新日期：2005-10-01 00:00:00

abstract：:In the fission yeast Schizosaccharomyces pombe, three genes that function in the RNA interference (RNAi) pathway, ago1+, dcr1+, and rdp1+, have recently been shown to be important for timely formation of heterochromatin and accurate chromosome segregation. In the present study, we present evidence that null mutants fo...

journal_title：Molecular biology of the cell

authors： Carmichael JB,Provost P,Ekwall K,Hobman TC

更新日期：2004-03-01 00:00:00

abstract：:Myo1c is a member of the myosin superfamily that binds phosphatidylinositol-4,5-bisphosphate (PIP(2)), links the actin cytoskeleton to cellular membranes and plays roles in mechano-signal transduction and membrane trafficking. We located and characterized two distinct membrane binding sites within the regulatory and t...

journal_title：Molecular biology of the cell

authors： Hokanson DE,Laakso JM,Lin T,Sept D,Ostap EM

更新日期：2006-11-01 00:00:00

abstract：:How recycling receptors are segregated from down-regulated receptors in the endosome is unknown. In previous studies, we demonstrated that substitutions in the transferrin receptor (TR) transmembrane domain (TM) convert the protein from an efficiently recycling receptor to one that is rapidly down regulated. In this s...

journal_title：Molecular biology of the cell

authors： Zaliauskiene L,Kang S,Brouillette CG,Lebowitz J,Arani RB,Collawn JF

更新日期：2000-08-01 00:00:00

abstract：:The subcellular distribution of kinases and other signaling proteins is regulated in response to cellular cues; however, the extent of this regulation has not been investigated for any gene set in any organism. Here, we present a systematic analysis of protein kinases in the budding yeast, screening for differential l...

journal_title：Molecular biology of the cell

authors： Bharucha N,Ma J,Dobry CJ,Lawson SK,Yang Z,Kumar A

更新日期：2008-07-01 00:00:00

abstract：:Numb has been implicated in cortical neurogenesis during nervous system development, as a result of its asymmetric partitioning and antagonizing Notch signaling. Recent studies have revealed that Numb functions in clathrin-dependent endocytosis by binding to the AP-2 complex. Numb is also expressed in postmitotic neur...

journal_title：Molecular biology of the cell

authors： Nishimura T,Yamaguchi T,Tokunaga A,Hara A,Hamaguchi T,Kato K,Iwamatsu A,Okano H,Kaibuchi K

更新日期：2006-03-01 00:00:00

abstract：:The microphthalmia-associated transcription factor (MITF) is required for terminal osteoclast differentiation and is a target for signaling pathways engaged by colony stimulating factor (CSF)-1 and receptor-activator of nuclear factor-kappaB ligand (RANKL). Work presented here demonstrates that MITF can shuttle from c...

journal_title：Molecular biology of the cell

authors： Bronisz A,Sharma SM,Hu R,Godlewski J,Tzivion G,Mansky KC,Ostrowski MC

更新日期：2006-09-01 00:00:00

abstract：:Drosophila bristles display a precise orientation and curvature. An asymmetric extension of the socket cell overlies the newly emerging bristle rudiment to provide direction for bristle elongation, a process thought to be orchestrated by the nerve dendrite lying between these cells. Scanning electron microscopic analy...

journal_title：Molecular biology of the cell

authors： Tilney LG,Connelly PS,Ruggiero L,Vranich KA,Guild GM,Derosier D

更新日期：2004-12-01 00:00:00

abstract：:We have shown previously that the Swi5 transcription factor regulates the expression of the SIC1 Cdk inhibitor in late mitosis. This suggests that Swi5 might control other genes with roles in ending mitosis. We identified a gene with a Swi5-binding site in the promoter that encoded a protein with high homology to Pcl2...

journal_title：Molecular biology of the cell

authors： Aerne BL,Johnson AL,Toyn JH,Johnston LH

更新日期：1998-04-01 00:00:00

abstract：:The polysomal ribonuclease 1 (PMR1) mRNA endonuclease forms a selective complex with its translating substrate mRNAs where it is activated to initiate mRNA decay. Previous work showed tyrosine phosphorylation is required for PMR1 targeting to this polysome-bound complex, and it identified c-Src as the responsible kina...

journal_title：Molecular biology of the cell

authors： Peng Y,Liu X,Schoenberg DR

更新日期：2008-02-01 00:00:00

abstract：:The RNA component of the signal recognition particle (SRP) is universally required for cotranslational protein targeting. Biochemical studies have shown that SRP RNA participates in the central step of protein targeting by catalyzing the interaction of the SRP with the SRP receptor (SR). SRP RNA also accelerates GTP h...

journal_title：Molecular biology of the cell

authors： Bradshaw N,Walter P

更新日期：2007-07-01 00:00:00

abstract：:The ARF tumor suppressor is a product of the INK4a/ARF locus, which is frequently mutated in human cancer. The expression of ARF is up-regulated in response to certain types of DNA damage, oncogene activation, and interferon stimuli. Through interaction with the p53 negative regulator MDM2, ARF controls a well-describ...

journal_title：Molecular biology of the cell

authors： Li Z,Hou J,Sun L,Wen T,Wang L,Zhao X,Xie Q,Zhang SQ

更新日期：2012-12-01 00:00:00

abstract：:A symposium was held at the University of California, San Diego, to honor the contributions of Nobel Laureate, George Palade, to cell biology. The speakers included Günter Blobel, on the structure and function of nuclear pore complexes; Peter Walter, on the unfolded protein response in health and disease; Randy Schekm...

journal_title：Molecular biology of the cell

authors： Schmid SL,Farquhar MG

更新日期：2010-07-15 00:00:00

abstract：:Clustered protocadherins (Pcdhs) are arranged in gene clusters (α, β, and γ) with variable and constant exons. Variable exons encode cadherin and transmembrane domains and ~90 cytoplasmic residues. The 14 Pcdh-αs and 22 Pcdh-γs are spliced to constant exons, which, for Pcdh-γs, encode ~120 residues of an identical cyt...

journal_title：Molecular biology of the cell

authors： O'Leary R,Reilly JE,Hanson HH,Kang S,Lou N,Phillips GR

更新日期：2011-11-01 00:00:00

abstract：:The cation-dependent mannose 6-phosphate receptor (CD-MPR) mediates the transport of lysosomal enzymes from the trans-Golgi network to endosomes. Evasion of lysosomal degradation of the CD-MPR requires reversible palmitoylation of a cysteine residue in its cytoplasmic tail. Because palmitoylation is reversible and ess...

journal_title：Molecular biology of the cell

authors： Stöckli J,Rohrer J

更新日期：2004-06-01 00:00:00

abstract：:Here we demonstrate that multiple tetraspanin (transmembrane 4 superfamily) proteins are palmitoylated, in either the Golgi or a post-Golgi compartment. Using CD151 as a model tetraspanin, we identified and mutated intracellular N-terminal and C-terminal cysteine palmitoylation sites. Simultaneous mutations of C11, C1...

journal_title：Molecular biology of the cell

authors： Yang X,Claas C,Kraeft SK,Chen LB,Wang Z,Kreidberg JA,Hemler ME

更新日期：2002-03-01 00:00:00

abstract：:The cyclic guanosine monophosphate (cGMP)/cGMP-dependent protein kinase type I (cGKI) pathway regulates many cellular functions. The current study shows that 8-Br-cGMP stimulates the number of attached primary but not that of subcultured murine vascular smooth muscle cells (VSMCs). These effects of 8-Br-cGMP require t...

journal_title：Molecular biology of the cell

authors： Weinmeister P,Lukowski R,Linder S,Traidl-Hoffmann C,Hengst L,Hofmann F,Feil R

更新日期：2008-10-01 00:00:00

abstract：:Macrophage fusion resulting in the formation of multinucleated giant cells occurs in a variety of chronic inflammatory diseases, yet the mechanism responsible for initiating this process is unknown. Here, we used live cell imaging to show that actin-based protrusions at the leading edge initiate macrophage fusion. Pha...

journal_title：Molecular biology of the cell

authors： Faust JJ,Balabiyev A,Heddleston JM,Podolnikova NP,Baluch DP,Chew TL,Ugarova TP

更新日期：2019-08-01 00:00:00

abstract：:Nuclear migration is required for normal development in both higher and lower eukaryotes. In fungi this process is mediated by cytoplasmic dynein. It is believed that this motor protein is anchored to the cell membrane and moves nuclei by capturing and pulling on spindle pole body microtubules. To date, four genes hav...

journal_title：Molecular biology of the cell

authors： Chiu YH,Xiang X,Dawe AL,Morris NR

更新日期：1997-09-01 00:00:00

abstract：:Prohibitins comprise a remarkably conserved protein family in eukaryotic cells with proposed functions in cell cycle progression, senescence, apoptosis, and the regulation of mitochondrial activities. Two prohibitin homologues, Phb1 and Phb2, assemble into a high molecular weight complex of approximately 1.2 MDa in th...

journal_title：Molecular biology of the cell

authors： Tatsuta T,Model K,Langer T

更新日期：2005-01-01 00:00:00

abstract：:SLC45A2 encodes a putative transporter expressed primarily in pigment cells. SLC45A2 mutations cause oculocutaneous albinism type 4 (OCA4) and polymorphisms are associated with pigmentation variation, but the localization, function, and regulation of SLC45A2 and its variants remain unknown. We show that SLC45A2 locali...

journal_title：Molecular biology of the cell

authors： Le L,Escobar IE,Ho T,Lefkovith AJ,Latteri E,Haltaufderhyde KD,Dennis MK,Plowright L,Sviderskaya EV,Bennett DC,Oancea E,Marks MS

更新日期：2020-11-15 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：:In the yeast Saccharomyces cerevisiae, the Apg12p-Apg5p conjugating system is essential for autophagy. Apg7p is required for the conjugation reaction, because Apg12p is unable to form a conjugate with Apg5p in the apg7/cvt2 mutant. Apg7p shows a significant similarity to a ubiquitin-activating enzyme, Uba1p. In this a...

journal_title：Molecular biology of the cell

authors： Tanida I,Mizushima N,Kiyooka M,Ohsumi M,Ueno T,Ohsumi Y,Kominami E

更新日期：1999-05-01 00:00:00

abstract：:Gene expression in eukaryotes is an essential process that includes transcription, RNA processing, and export. One important player in this interface is the poly(A)(+)-RNA-binding protein Nab2, which regulates the mRNA poly(A)(+)-tail length and export. Here we show that Nab2 has additional roles during mRNA transcrip...

journal_title：Molecular biology of the cell

authors： González-Aguilera C,Tous C,Babiano R,de la Cruz J,Luna R,Aguilera A

更新日期：2011-08-01 00:00:00