Conservation of glutamine-rich transactivation function between yeast and humans.

abstract：:Lactose or galactose induces the expression of the lactose-galactose regulon in Kluyveromyces lactis. We show here that the regulon is not induced in strains defective in LAC9. We demonstrate that this gene codes for a regulatory protein that acts in a positive manner to induce transcription. The LAC9 gene was isolate...

journal_title：Molecular and cellular biology

authors： Wray LV Jr,Witte MM,Dickson RC,Riley MI

更新日期：1987-03-01 00:00:00

abstract：:Vimentin is a tissue-specific, developmentally regulated member of the intermediate filament protein family normally expressed in cells of mesenchymal origin. Transcription factors which recognize specific cis-acting elements of the chicken gene include Sp-1 and the 95-kDa silencer protein which binds to a 40-bp silen...

journal_title：Molecular and cellular biology

authors： Stover DM,Zehner ZE

更新日期：1992-05-01 00:00:00

abstract：:Cellular differentiation is governed by changes in gene expression, but at the same time, a cell's identity needs to be maintained through multiple cell divisions during maturation. In myeloid cell lines, retinoids induce gene expression and a well-characterized two-step lineage-specific differentiation. To identify m...

journal_title：Molecular and cellular biology

authors： Balint BL,Szanto A,Madi A,Bauer UM,Gabor P,Benko S,Puskás LG,Davies PJ,Nagy L

更新日期：2005-07-01 00:00:00

abstract：:CCAAT/enhancer binding protein beta (C/EBPbeta) is a widely expressed transcription factor whose activity is regulated by oncogenic Ha-RasV12 signaling. C/EBPbeta is essential for the development of mouse skin tumors containing Ras mutations and can cooperate with RasV12 to transform NIH 3T3 cells. Here we have invest...

journal_title：Molecular and cellular biology

authors： Shuman JD,Sebastian T,Kaldis P,Copeland TD,Zhu S,Smart RC,Johnson PF

更新日期：2004-09-01 00:00:00

abstract：:The Caenorhabditis elegans run gene encodes a Runt domain factor. Runx1, Runx2, and Runx3 are the three known mammalian homologs of run. Runx1, which plays an essential role in hematopoiesis, has been identified at the breakpoint of chromosome translocations that are responsible for human leukemia. Runx2 plays an esse...

journal_title：Molecular and cellular biology

authors： Nam S,Jin YH,Li QL,Lee KY,Jeong GB,Ito Y,Lee J,Bae SC

更新日期：2002-01-01 00:00:00

abstract：:Mouse erythroleukemia cells contain several abundant mRNA species that occur to a considerable extent as untranslated molecules. For two of these species, which code for polypeptides P40 and P21, the proportion of molecules engaged in translation decreases rapidly after exposure of the cells to dimethyl sulfoxide. The...

journal_title：Molecular and cellular biology

authors： Yenofsky R,Cereghini S,Krowczynska A,Brawerman G

更新日期：1983-07-01 00:00:00

abstract：:The baker's yeast Saccharomyces cerevisiae expresses three homologues of the Nramp family of metal transporters: Smf1p, Smf2p, and Smf3p, encoded by SMF1, SMF2, and SMF3, respectively. Here we report a comparative analysis of the yeast Smf proteins at the levels of localization, regulation, and function of the corresp...

journal_title：Molecular and cellular biology

authors： Portnoy ME,Liu XF,Culotta VC

更新日期：2000-11-01 00:00:00

abstract：:Telomerase promotes telomere maintenance by copying a template within its integral RNA subunit to elongate chromosome ends with new telomeric repeats. Motifs have been defined within the telomerase RNA that contribute to mature RNA accumulation, holoenzyme catalytic activity, or enzyme recruitment to telomeres. Here, ...

journal_title：Molecular and cellular biology

authors： Sexton AN,Collins K

更新日期：2011-02-01 00:00:00

abstract：:We have characterized two P-element-induced, lethal mutations in Drosophila melanogaster which affect the larval hemocytes, mediators of the insect immune response. Each mutant displays larval melanotic tumors characteristic of mutations affecting the insect cellular immune system, and the moribund animals develop gro...

journal_title：Molecular and cellular biology

authors： Stewart MJ,Denell R

更新日期：1993-04-01 00:00:00

abstract：:Growth, patterning, and apoptosis are mutually interactive during development. For example, cells that select an abnormal fate in a developing field are frequently removed by apoptosis. An important issue in this process that needs to be resolved is the mechanism used by cells to discern their correct fate from an abn...

journal_title：Molecular and cellular biology

authors： Adachi-Yamada T,Harumoto T,Sakurai K,Ueda R,Saigo K,O'Connor MB,Nakato H

更新日期：2005-04-01 00:00:00

abstract：:NF-κB activation is a critical component in the transcriptional response to hypoxia. However, the underlying mechanisms that control its activity under these conditions are unknown. Here we report that under hypoxic conditions, IκB kinase (IKK) activity is induced through a calcium/calmodulin-dependent kinase 2 (CaMK2...

journal_title：Molecular and cellular biology

authors： Culver C,Sundqvist A,Mudie S,Melvin A,Xirodimas D,Rocha S

更新日期：2010-10-01 00:00:00

abstract：:Substitution of phenylalanine for tyrosine at codon 809 (Y809F) of the human colony-stimulating factor 1 (CSF-1) receptor (CSF-1R) impairs ligand-stimulated tyrosine kinase activity, prevents induction of c-MYC and cyclin D1 genes, and blocks CSF-1-dependent progression through the G1 phase of the cell cycle. We devis...

journal_title：Molecular and cellular biology

authors： Davis JN,Rock CO,Cheng M,Watson JB,Ashmun RA,Kirk H,Kay RJ,Roussel MF

更新日期：1997-12-01 00:00:00

abstract：:The tyrosinase family comprises three members, tyrosinase (Tyr), tyrosinase-related protein 1 (Tyrp1), and dopachrome tautomerase (Dct). Null mutations and deletions at the Tyr and Tyrp1 loci are known and phenotypically affect coat color due to the absence of enzyme or intracellular mislocalization. At the Dct locus,...

journal_title：Molecular and cellular biology

authors： Guyonneau L,Murisier F,Rossier A,Moulin A,Beermann F

更新日期：2004-04-01 00:00:00

abstract：:The Gfi-1 proto-oncogene encodes a zinc finger protein with six C2H2-type, C-terminal zinc finger motifs and is activated by provirus integration in T-cell lymphoma lines selected for interleukin-2 independence in culture and in primary retrovirus-induced thymomas. Gfi-1 expression in adult animals is restricted to th...

journal_title：Molecular and cellular biology

authors： Zweidler-Mckay PA,Grimes HL,Flubacher MM,Tsichlis PN

更新日期：1996-08-01 00:00:00

abstract：:Keratin 6 (K6) expression in the epidermis has two components: constitutive expression in the innermost layer of the outer root sheath (ORS) of hair follicles and inducible expression in the interfollicular epidermis in response to stressful stimuli such as wounding. Mice express two K6 isoforms, MK6a and MK6b. To gai...

journal_title：Molecular and cellular biology

authors： Wojcik SM,Bundman DS,Roop DR

更新日期：2000-07-01 00:00:00

abstract：:We report our molecular characterization of the Drosophila melanogaster Abelson gene (abl), a gene in which recessive loss-of-function mutations result in lethality at the pupal stage of development. This essential gene consists of 10 exons extending over 26 kilobase pairs of genomic DNA. The DNA sequence encodes a pr...

journal_title：Molecular and cellular biology

authors： Henkemeyer MJ,Bennett RL,Gertler FB,Hoffmann FM

更新日期：1988-02-01 00:00:00

abstract：:Autophosphorylated growth factor receptors provide binding sites for the src homology 2 domains of intracellular signaling molecules. In response to epidermal growth factor (EGF), the activated EGF receptor binds to a complex containing the signaling protein GRB2 and the Ras guanine nucleotide-releasing factor Sos, le...

journal_title：Molecular and cellular biology

authors： Li W,Nishimura R,Kashishian A,Batzer AG,Kim WJ,Cooper JA,Schlessinger J

更新日期：1994-01-01 00:00:00

abstract：:An 85,000-molecular-weight polypeptide (85K polypeptide) has previously been identified as a common substrate for tyrosine phosphorylation upon polyomavirus middle T transformation or upon platelet-derived growth factor stimulation of 3T3 cells. In each case, pp85 has an associated phosphatidylinositol kinase activity...

journal_title：Molecular and cellular biology

authors： Cohen B,Liu YX,Druker B,Roberts TM,Schaffhausen BS

更新日期：1990-06-01 00:00:00

abstract：:In a gene trap screen for genes expressed in the primitive streak and tail bud during mouse embryogenesis, we isolated a mutation in Jade1, a gene encoding a PHD zinc finger protein previously shown to interact with the tumor suppressor pVHL. Expressed sequence tag analysis indicates that Jade1 is subject to posttrans...

journal_title：Molecular and cellular biology

authors： Tzouanacou E,Tweedie S,Wilson V

更新日期：2003-12-01 00:00:00

abstract：:CDC37 encodes a 50-kDa protein that targets intrinsically unstable oncoprotein kinases including Cdk4, Raf-1, and v-src to the molecular chaperone Hsp90, an interaction that is thought to be important for the establishment of signaling pathways. CDC37 is required for proliferation in budding yeast and is coexpressed w...

journal_title：Molecular and cellular biology

authors： Stepanova L,Finegold M,DeMayo F,Schmidt EV,Harper JW

更新日期：2000-06-01 00:00:00

abstract：:To determine if Neu is dominant over transforming growth factor beta (TGF-beta), we crossed mouse mammary tumor virus (MMTV)-Neu mice with MMTV-TGF-beta1(S223/225) mice expressing active TGF-beta1 in the mammary gland. Bigenic (NT) and Neu-induced mammary tumors developed with a similar latency. The bigenic tumors and...

journal_title：Molecular and cellular biology

authors： Muraoka RS,Koh Y,Roebuck LR,Sanders ME,Brantley-Sieders D,Gorska AE,Moses HL,Arteaga CL

更新日期：2003-12-01 00:00:00

abstract：:Repair of chromosomal breaks is essential for cellular viability, but misrepair generates mutations and gross chromosomal rearrangements. We investigated the interrelationship between two homologous-repair pathways, i.e., mutagenic single-strand annealing (SSA) and precise homology-directed repair (HDR). For this, we ...

journal_title：Molecular and cellular biology

authors： Stark JM,Pierce AJ,Oh J,Pastink A,Jasin M

更新日期：2004-11-01 00:00:00

abstract：:Combined deficiencies of poly(ADP)ribosyl polymerase 1 (PARP1) and ataxia telangiectasia mutated (ATM) result in synthetic lethality and, in the mouse, early embryonic death. Here, we investigated the genetic requirements for this lethality via analysis of mice deficient for PARP1 and either of two ATM-regulated DNA d...

journal_title：Molecular and cellular biology

authors： Orsburn B,Escudero B,Prakash M,Gesheva S,Liu G,Huso DL,Franco S

更新日期：2010-05-01 00:00:00

abstract：:The c-abl protooncogene is unusual in two respects; it has multiple, widely space N-terminal coding exons transcribed by different promoters, and it is the target of the translocations that form the Philadelphia chromosome found in cells of chronic myelogenous leukemia patients. To understand the organization of the g...

journal_title：Molecular and cellular biology

authors： Bernards A,Rubin CM,Westbrook CA,Paskind M,Baltimore D

更新日期：1987-09-01 00:00:00

abstract：:NMYC is a gene whose amplification and overexpression have been implicated in the generation of certain human malignancies. Little is known of how the expression of NMYC is normally controlled. We have therefore characterized transcription from the gene and the structure and stability of the resulting mRNAs. Transcrip...

journal_title：Molecular and cellular biology

authors： Stanton LW,Bishop JM

更新日期：1987-12-01 00:00:00

abstract：:Telomerase is a ribonucleoprotein reverse transcriptase responsible for the maintenance of one strand of the telomere terminal repeats. The catalytic protein subunit of the telomerase complex, known as TERT, possesses a reverse transcriptase (RT) domain that mediates nucleotide addition. The RT domain of TERT is disti...

journal_title：Molecular and cellular biology

authors： Lue NF,Lin YC,Mian IS

更新日期：2003-12-01 00:00:00

abstract：:In this report we described the cloning and characterization of ADA5, a gene identified by resistance to GAL4-VP16-mediated toxicity. ADA5 binds directly to the VP16 activation domain but not to a transcriptionally defective VP16 double point mutant. Double mutants with mutations in ada5 and other genes (ada2 or ada3)...

journal_title：Molecular and cellular biology

authors： Marcus GA,Horiuchi J,Silverman N,Guarente L

更新日期：1996-06-01 00:00:00

abstract：:mRNAs are monitored for errors in gene expression by RNA surveillance, in which mRNAs that cannot be fully translated are degraded by the nonsense-mediated mRNA decay pathway (NMD). RNA surveillance ensures that potentially deleterious truncated proteins are seldom made. NMD pathways that promote surveillance have bee...

journal_title：Molecular and cellular biology

authors： Lelivelt MJ,Culbertson MR

更新日期：1999-10-01 00:00:00

abstract：:We have previously shown that the SIS/platelet-derived growth factor B chain contains a nuclear targeting signal near its C terminus. Here we show that the platelet-derived growth factor A chain also contains a nuclear targeting signal encoded by an exon which is subject to alternative splicing. This sequence is capab...

journal_title：Molecular and cellular biology

authors： Maher DW,Lee BA,Donoghue DJ

更新日期：1989-05-01 00:00:00

abstract：:We have probed the accessibility of the genes for rRNA in Physarum polycephalum by using the photoreactive DNA cross-linking agent 4,5',8-trimethyl psoralen. Nuclei isolated from actively growing Physarum were treated with trimethyl psoralen and irradiated with 360-nm light in order to form cross-links. The palindromi...

journal_title：Molecular and cellular biology

authors： Judelson HS,Vogt VM

更新日期：1982-03-01 00:00:00