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| | American Journal of Botany, 14, 2, February, 1927 |
 | | The behavior of the nucleolus should be studied further in view of its possible relation to the small globular, black-staining bodies found occasionally in strains of Golden Bantam, yellow flint, and Black Mexican sweet corn. | | | During the formation of the threads, the delicate precipitate of the nucleus is gradually used up. | | | A pairing of the threads occurs during the early prophases; no definite evidence is found as to the time of their conjugation. |
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http://www.botany.org/ajb/00029122_di001249.html
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| | Nuclear Compartments: Nucleolus |
| | (2002) Functional proteomic analysis of the human nucleolus. | | | (2002) Directed proteomic analysis of the human nucleolus. | | | to the nucleolus thereby preventing the MDM2-dependent degradation of |
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http://npd.hgu.mrc.ac.uk/compartments/nucleolus.html
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| | Nucleolus - Wikipedia, the free encyclopedia |
| | Besides, recent research pointed out that nucleolus is also responsible for the trafficking of various prominent small RNA species. | | | Study of structure of nucleolus is mainly concentrated in its RNA synthesis related area. | | | Other than ribosome biogenesis, nucleolus is believed to have other roles in cellular activity. |
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http://en.wikipedia.org/wiki/Nucleolus
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| | BGN 9: Nucleolus organizer activity as affected by chromosome repatterning in barley |
| | The behavior of nucleolus organizers in structurally reconstructed karyotypes of barley. | | | Nucleolus organizer activity as affected by chromosome repatterning in barley. | | | Though the mechanism underlying this phenomenon is presently unknown, the cases so far studied represent what may be called position effects with respect to the transcription of rDNA. |
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http://wheat.pw.usda.gov/ggpages/bgn/9/9p9.html
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| | Nucleus1 |
| | Paul Schedl - The general goal of our research on Drosophila melanogaster is to gain insights into some of the mechanisms governing the utilization of genetic information in eukaryotes. | | | The Nucleolus - A brief overview of the nucleolus. |
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http://darwin.nmsu.edu/~molbio/cell/Nucleus.html
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| | Nucleolus organizer region heteromorphism in patients with Down syndrome and their parents |
| | The short arms of human acrocentric chromosomes are the sites of heteromorphisms, detectable by a silver staining technique specifically for nucleolus organizer regions (NORs) [3]. | | | Nucleolus organizer region heteromorphism in patients with Down syndrome and their parents | | | ABSTRACT The study aimed to evaluate the role of nucleolus organizer region (NOR) heteromorphism as an etiological factor for parental nondisjunction in Down syndrome by comparing 25 patients affected by Down syndrome, and their parents with a control group of 80 non-affected Egyptians. |
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http://www.emro.who.int/Publications/EMHJ/0502/11.htm
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| | Trafficking of Spliceosomal Small Nuclear RNAs Through the Nucleolus |
| | With respect to spliceosomal snRNAs (U1, U2, U4, U5, U6) the nucleolus is favoured as the place where 2'-O-methylation and pseudouridylation of nucleotides of U6 and at least of some nucleotides of other snRNAs such as U2 are carried out. | | | The nucleolus is the “White House” of the cell and part of a network that includes many types of nuclear bodies such as Cajal Bodies, speckles, snurposomes, PML bodies, gems or the recently described paraspeckles. | | | It is possible that some steps in the assembly of spliceosomal factors also may occur in the nucleolus. |
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http://www.eurekah.com/abstract.php?chapid=1189&bookid=88&catid=54
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| | The Dynamics of the Nucleolus - Begell House Inc. |
| | Proteomic studies have also highlighted the dynamic nature of the nucleolar proteome. | | | Certain proteins have also been shown to accumulate in the nucleolus only under specific metabolic conditions or at specific cell cycle stages. | | | Meanwhile, photobleaching analyses indicate that most nucleolar proteins studied are continually exchanging between the nucleoplasm and the nucleolus. |
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http://www.begellhouse.com/journals/6dbf508d3b17c437,54ac88147fa6e67b,6548f116161276dc.html
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| | ImmInst.org -> What is happening in the nucleolus? |
| | ImmInst.org -> What is happening in the nucleolus? | | | There is a correlation between the activities of the nucleolus and splicing as well as many "small nuclear associated RNAs" are localized there. | | | RNA Editing which takes place before splicing, for example the activity of adenosine deaminases (ADAR1 and ADAR2), and alters splicing patterns takes place in the nucleolus. |
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http://www.imminst.org/forum/index.php?s=&act=ST&f=44&t=5085&view=pid&pid=46825
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| | Structure of a euglena |
| | Nucleolus: spherical body that contains the nucleus of a euglena. |
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http://www.infovisual.info/02/001_en.html
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| | Nucleolus |
| | Within the nucleus are found chromatin and a structure called the nucleolus. |
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http://personal.tmlp.com/Jimr57/textbook/chapter3/nucs2.htm
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| | The position of the nucleolus in each microspore of the quartet |
| | One such marker we have utilized is the nucleolus. | | | Since it is difficult to establish the position of one large nucleolus, or occasionally two smaller nucleoli in somatic interphase cells, we have attempted to analyze the position of nucleoli in recently formed microspore quartets. | | | The distribution of specific chromosomes in the nucleus has been of interest to us for some time. |
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http://www.maizegdb.org/mnl/57/140rees-farrell.html
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| | Cell Organelles: The Nucleus and Nucleolus |
| | The prominent structure in the nucleus is the nucleolus. | | | The nucleolus produces ribosomes, which move out of the nucleus to positions on the rough endoplasmic reticulum where they are critical in protein synthesis. | | | When a cell is dividing, the DNA and surrounding protein condense into chromosomes (see photo) that are visible by microscopy. |
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http://www.cellsalive.com/cells/nucleus.htm
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| | nucleolus - Columbia Encyclopedia article about nucleolus |
| | The cell is the smallest unit in the living organism that is capable of integrating the essential life processes. | | | nucleolus: see cell cell, in biology, the unit of structure and function of which all plants and animals are composed. |
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http://columbia.thefreedictionary.com/nucleolus
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| | Definition of Nucleolus from dictionary.net |
| | In the protozoa, where it may be situated on one side of the nucleus, it is sometimes called the endoplastule, and is supposed to be concerned in the male part of the reproductive process. | | | Define nucleolus and 150,000 other words at dictionary.net | | | we found 1 entry for the meaning of nucleolus |
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http://www.dictionary.net/nucleolus
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| | 8.5.4.5 |
| | Most human nuclei contain only one nucleolus, except for liver cell nuclei which may contain more than one nucleolus | | | The size of the nucleolus correlates with its level of activity. | | | It also has a granular component (each granule ~150 nm thick) and a fibrillar component, and a variable internal structure. |
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http://www.nanomedicine.com/NMI/8.5.4.5.htm
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| | CSIRO PUBLISHING - Reproduction, Fertility and Development |
| | Upon meiosis, structures resembling the nucleolar remnant, now referred to as nucleolus precursor bodies (NPBs), are established in the pronuclei. | | | This organelle presents an active fibrillogranular ultrastructure in the oocyte during the growth of the gamete but, at the end of the growth phase, the nucleolus is transformed into an inactive remnant that is dissolved when meiosis is resumed at germinal vesicle breakdown. | | | This so-called nucleologenesis occurs at a species-specific time of development and can be classified into two different models: one where nucleolus development occurs inside the NPBs (e.g. |
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http://www.publish.csiro.au/nid/44/paper/RD04108.htm
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| | The Nucleolus |
| | A Differential Interference Contrast (DIC) brightfield image of a group of neuroblastoma cells. | | | Newly synthesized RNA labeled with a 10 minute pulse of fluorouridine (green) is overlaid upon the DIC image |
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http://www.cellnucleus.com/Structure%20Database/Nucleolus/Nls.htm
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| | nucleolus - General Practice Notebook |
| | The nucleolus is an ovoid structure within the nucleus of cells. | | | Oxbridge Solutions Ltd® is an independent company owned by the authors which does not receive income from any other organisation or individual. | | | During cell division, it cannot be discerned with the light microscope, but at times of protein synthesis it is very prominent. |
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http://www.gpnotebook.co.uk/cache/-1731198917.htm
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| | On The Computation Of The Nucleolus Of A Cooperative Game - Faigle, Kern, Kuipers (ResearchIndex) |
| | 5 Computing the nucleolus of some combinatorially structured g.. | | | This generalizes both a recent result by Kuipers on the computation of the nucleolus for convex games and a classical result by... | | | We show that we can efficiently compute an allocation in the intersection of the prekernel and the least core of the game if we can efficiently compute the minimum excess for any given allocation. |
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http://citeseer.ist.psu.edu/faigle99computation.html
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| | Nucleolus Home Page |
| | Though most nuclei have one nucleolus, the number ranges from zero to several because of their transient structure. | | | Because it takes the cells such a long time to make the ribosomes, it seems like this number is too great unless there are many nucleolus in each cell nucleus. | | | Although it takes almost an hour for a nucleolus to make one ribosome, because there are so many nucleolus, thousands are made at once. |
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http://sun.menloschool.org/~cweaver/cells/c/nucleolus/home.html
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| | The Nucleolus and Kernel of Veto-Rich Transferable Utility Games |
| | Furthermore, we provide a few examples of economic situations which belong to the class of veto-rich games and which are treated in the literature. | | | The process of computing the nucleolus of arbitrary transferable utility games is notoriously hard. | | | We then provide a fast algorithm which does not use linear programming techniques to compute the nucleolus of these games. |
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http://ideas.repec.org/a/spr/jogath/v26y1997i1p61-73.html
(376 words)
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| | Nucleolus |
| | Ribosomes are key to the function of the nucleolus. | | | A cell cannot read RNA, the messages that come from the nucleus, so in the nucleolus, these messages are changed into proteins, which are readable to the cell. | | | A nucleolus usually has a spherical shape and is divided into different sections. |
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http://sun.menloschool.org/~tbuxton/cells/f/plants/nucleolus
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| | Essays Page |
| | There may be one to several per nucleus. | | | Transcription of this code requires a specific RNA polymerase found only in the nucleolus. | | | The nucleolus is the site of manufacture of ribosomal subunits and is thus most conspicuous in cells making large quantities of protein. |
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http://www.fofweb.com/Subscription/Science/Helicon.asp?SID=2&RecordType=Definition&iPin=ffdbot1498
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| | Cell |
| | Nucleolus: nuclear particle that plays a role in the physiology of a cell. |
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http://www.infovisual.info/03/001_en.html
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| | IvyRose Holistic : Histology & The Cell : Nucleolus |
| | The nucleolus is a dense spherical structure within the nucleus of a cell. | | | IvyRose Holistic : Histology & The Cell : Nucleolus | | | See the Revision page about Cell Structure for further information including a diagram of the structure of a basic cell including the nucleus, nucleolus, etc.. |
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http://www.ivy-rose.co.uk/References/glossary_entry151.htm
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| | Directory of open access journals |
| | These bodies were regarded as CB-like structures and were not stained by anti-PM/Scl and anti-To/Th antibodies. | | | Cajal bodies (CB) are ubiquitous nuclear structures involved in the biogenesis of small nuclear ribonucleoproteins and show narrow association with the nucleolus. | | | The demonstration that a set of proteins involved in RNA/RNP biogenesis, namely coilin, fibrillarin, NOR-90/hUBF, and RNA polymerase I gather in CB-like structures present in nucleoli-devoid micronuclei may contribute to shed some light into the understanding of CB function. |
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http://www.doaj.org/abstract?id=89112&toc=y
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| | US Patent 6,177,254 - Nucleolus Autoantigenic Marker for Systemic Lupus Erthyematosus |
| | ASE-1 co-localizes with RNA polymerase-I and autoantibodies to ASE-1 are found at a higher frequency in individuals with systemic lupus erthyematosus (SLE). | | | This autoantigenic protein, termed ASE-1, has an approximate molecular mass of 55 kDa and is a component of the nucleolus found in all nucleated human cells. | | | To identify the presence of ASE-1 antibodies in an individual patient's serum, a sample is taken and screened against the cloned ASE-1 protein. |
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http://www.lightlink.com/bbm/6177254.html
(1041 words)
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| | PML regulates p53 stability by sequestering Mdm2 to the nucleolus - Nature Cell Biology |
| | PML was recently shown to interact with the p53 ubiquitin-ligase Mdm2 (refs 4−6); however, the mechanism by which PML regulates Mdm2 remains unclear. | | | Cancer Biology and Genetics Program, Department of Pathology and Medicine, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA. | | | cells, sequestration of Mdm2 to the nucleolus was impaired, as well as p53 stabilization and the induction of apoptosis. |
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http://www.nature.com/cgi-taf/DynaPage.taf?file=/ncb/journal/v6/n7/abs/ncb1147.html
(286 words)
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| | The Nucleolus, Ribosomes and Protein Synthesis |
| | The nucleolus is the site where most of the ribosomal RNA (r-RNA) is transcribed | | | Describe the composition and structure of the nucleolus | | | The nucleolus organiser regions contain many repeated copies of the r-RNA gene cluster |
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http://staff.um.edu.mt/acus1/Nucleolus.htm
(1049 words)
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| | The Cell Nucleus III |
| | This diagram shows the parts of the nucleolus. | | | For more information follow the link to ribosomes | | | If they attach to rough endoplasmic reticulum, they form a pore that moves the newly synthesized proteins into the cisterna of the rough endoplasmic reticulum. |
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http://cellbio.utmb.edu/cellbio/nucleus3.htm
(447 words)
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| | nucleus and nucleolus |
| | Specifically the nucleolus is the region of the nucleus where production of a kind of RNA called ribosomal RNA is taking place. | | | I have colored part of the nucleus a darker purple to indicate a "structure" that is termed the nucleolus. | | | Under the light microscope the nucleoli appear as dark staining bodies, but in reality they are more of an illusion in that what they represent are regions in the nucleus where DNA from many chromosomes come together during the first stages of protein synthesis. |
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http://staff.jccc.net/pdecell/cells/nucleus.html
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| | nucleolus |
| | The nucleolus is spherical in shape and made up principally of rRNA which is in the process of being transcribed from rRNA genes. | | | The nucleolus is the dark circle within the larger mottled circle of the nucleus |
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http://www.daviddarling.info/encyclopedia/N/nucleolus.html
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| | GLOSSARY N |
| | The nucleosomes in turn are coiled to form the Þbers that make up the | | | nucleolus A round or oval body in the nucleus of a eukaryotic cell; consists of DNA and RNA and produces ribosomal RNA (pl.: nucleoli). |
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http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookglossN.html
(861 words)
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| | The Nucleus |
| | During the period between cell divisions, when the chromosomes are in their extended state, 1 or more of them (10 in human cells) have loops extending into a spherical mass called the nucleolus. | | | Once formed, rRNA molecules associate with the dozens of different ribosomal proteins used in the assembly of the large and small subunits of the ribosome. | | | The rDNA-containing regions of these 10 chromosomes cluster together in the nucleolus. |
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http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/N/Nucleus.html
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| | nucleolus organiser - definition of nucleolus organiser by the Free Online Dictionary, Thesaurus and Encyclopedia. |
| | This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. | | | nucleolus organiser - the particular part of a chromosome that is associated with a nucleolus after nuclear division | | | nucleolus organiser - definition of nucleolus organiser by the Free Online Dictionary, Thesaurus and Encyclopedia. |
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http://www.thefreedictionary.com/nucleolus+organiser
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| | Search Results for nucleolus - Encyclopædia Britannica |
| | Swedish cytologist and geneticist who initiated the use of the ultraviolet microscope to determine the nucleic acid content of cellular structures such as the nucleus and nucleolus. | | | As explained above, genetic information is encoded in the sequences of the four nucleotide bases making up a DNA molecule. | | | Expand your search on nucleolus with these databases: |
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http://www.britannica.com/search?query=nucleolus&ct=&fuzzy=N
(280 words)
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| | Cell Nucleolus : on Medical Dictionary Online |
| | In the nucleolus rRNA is transcribed from a nucleolar organizer, i.e., a group of tandemly repeated chromosomal genes which encode rRNA and which are transcribed by RNA polymerase I. (Singleton & Sainsbury, Dictionary of Microbiology & Molecular Biology, 2d ed) | | | Within most types of eukaryotic CELL NUCLEUS, a distinct region, not delimited by a membrane, in which some species of rRNA (RNA, RIBOSOMAL) are synthesized and assembled into ribonucleoprotein subunits of ribosomes. |
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http://www.online-medical-dictionary.org/?q=Cell+Nucleolus
(171 words)
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| | Genetics Glossary NO |
| | A region (or regions) of the chromosome set physically associated with the nucleolus and containing rRNA genes. | | | A DNA mass within a chloroplast or mitochondrion. | | | The chromosomal region around which the nucleolus forms, a site of tandem repeats of the rRNA gene. |
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http://helios.bto.ed.ac.uk/bto/glossary/no.htm
(1331 words)
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| | Nucleolus - Wikipedia |
| | Erstes Interesse für die Nucleoli erregten John Gurdon und Donald Brown 1964, die beim Krallenfrosch Xenopus laevis entdeckten, dass 25% von dessen Eiern keinen Nukleolus besaßen und allesamt nicht lebensfähig waren. | | | Sie enthalten die Information für die Synthese Ribosomaler RNA, die in der Nucleolus-Region gebildet wird. | | | Die NORs liegen in den Bereichen von Chromosomen, die ribosomale DNA, also die Gene zur Bildung von ribosomaler RNA (rRNA) enthalten. |
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http://de.wikipedia.org/wiki/Nucleolus
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