Results 1 to 10 of about 2,342,144 (289)

Quantification of Ag-NOR proteins using Ag-NOR staining on western blots. [PDF]

open access: yesJournal of Histochemistry & Cytochemistry, 1994
Ribosomal genes are associated with a set of silver-stained nucleolar proteins, the Ag-NOR proteins, whose amount is directly related to the duration of the cell cycle. Quantification of Ag-NOR proteins by image analysis is presently used to evaluate the rate of proliferation of cancer cells and nucleolar activity.
P, Roussel   +2 more
openaire   +3 more sources

Ag‐NOR" proteins are present when transcription is impaired

open access: yesBiology of the Cell, 1984
The use of nucleolar silver staining in plant cells in conditions of impaired transcription, either natural (quiescent cells) or induced (actinomycin D, ethidium bromide and cordycepin treatments), shows that nucleoli with very low transcription rates, compared with controls, contain similar amounts of argyrophilic proteins, as well as the same ...
Sánchez-Pina, M. Amelia   +3 more
openaire   +4 more sources

An Experimental Approach to the Study of AG-NOR Proteins. [PDF]

open access: yesACTA HISTOCHEMICA ET CYTOCHEMICA, 1994
Purified polyclonal antibodies have been obtained against 100 KD and 36 KD Ag-NOR proteins. These two antibodies have been used to study the immunolocalization of both proteins on different cell types subjected to various conditions of cell activity and to observe a nucleolar labelling with anti-36 kDa Ag-NOR protein antibody evenly ...
Rodríguez, Rosa María   +3 more
openaire   +5 more sources

Variation in size and location of the Ag-NOR in the Atlantic halibut (Hippoglossus hippoglossus)

open access: yesGenetica, 2007
The distribution of differentially stained chromatin was studied in the Atlantic halibut (Hippoglossus hippoglossus) chromosomes (2n=48). Four pairs of homologous chromosomes were identified using a combination of traditional cytogenetic staining techniques (Giemsa/DAPI/CMA3/Ag-NO3).
Ocalewicz, Konrad   +2 more
openaire   +4 more sources

Amount variability of total and individual Ag-NOR proteins in cells stimulated to proliferate. [PDF]

open access: yesJournal of Histochemistry & Cytochemistry, 1995
Ribosomal genes are associated with a subset of acidic proteins called Ag-NOR proteins. The amount of nucleolar Ag-NOR proteins varies, depending on nucleolar activity and/or cell proliferation. To understand the linkage between the amount of Ag-NOR proteins, ribosome biogenesis, and cell proliferation, we investigated the variability of Ag-NOR ...
V, Sirri   +4 more
openaire   +3 more sources

Ag-NOR proteins and rDNA transcriptional activity in plant cells. [PDF]

open access: yesJournal of Histochemistry & Cytochemistry, 1990
In this work we used Allium cepa root meristem cells in actively growing conditions and under treatment with the protein synthesis inhibitors cycloheximide (CHM) and puromycin. Morphological and quantitative results indicate that these drugs induce dramatic alterations in nucleolar structure reflected by a decrease of nucleolar size, much more evident ...
F J, Moreno   +2 more
openaire   +3 more sources

Interindividual and intercellular polymorphisms of Ag-NOR pattern in mink embryo siblings [PDF]

open access: yesGenetics Selection Evolution, 1994
La variabilite de la coloration a l'argent des regions des organisateurs nucleolaires (Ag-NOR) a ete etudiee sur des hepatocytes de 9 embryons de vison, germains de portee et incluant une paire de jumeaux monochorioniques, presumes monozygotes. A la fois le nombre des Ag-NOR et la taille moyenne des taches d'argent par cellule se sont trouves etre ...
Isakova GK
doaj   +3 more sources

Chromosome analysis in Saccodon wagneri (Characiformes) and insights into the karyotype evolution of Parodontidae [PDF]

open access: yesNeotropical Ichthyology, 2021
Parodontidae is a relatively small group of Neotropical characiform fishes consisting of three genera (Apareiodon, Parodon, and Saccodon) with 32 valid species.
Mauro Nirchio   +7 more
doaj   +1 more source

Comparative cytogenetics of four endemic Capoeta (Teleostei: Cyprinidae) species from Anatolia, Türkiye

open access: yesCaryologia, 2023
The genus Capoeta is an important taxon covering a wide distribution in Türkiye. However, only a few genetic studies on Capoeta species reported from Türkiye. There is no cytogenetical study in Capoeta aydinensis Turan, Küçük, Kaya, Güçlü & Bektaş, 2017,
Sevgi Unal-Karakus   +2 more
doaj   +1 more source

Classical chromosome features and microsatellites repeat in Gekko petricolus (Reptilia, Gekkonidae) from Thailand

open access: yesCaryologia, 2022
The objectives of this study were to examine size, shape, diploid number (2n), fundamental number (NF), NORs region, and distribution of microsatellite by using Fluorescence in situ hybridization technique (FISH) and to establish the karyotype and ...
Sumalee   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy