Oligos used to replace the galK-targeting cassette were obtained from Invitrogen. dsDNA was used and the oligos (sense and antisense) annealed in vitro: 10 μg of each oligo (sense and antisense) was mixed in an eppendorf tube in a total volume of 100 μl of 1× PCR buffer (Expand High Fidelity PCR kit, Roche Applied Science) and boiled for 5 min, allowed to cool to room temperature for 30 min, ethanol precipitated and resuspended in 100 μl ddH2O to a final concentration of 200 ng/μl double-stranded oligo. An aliquot of 1 μl (200 ng) was used in the recombineering experiments. To introduce the G12D (G<>A) point mutation in the Nras BAC CITB 50J2, the following oligos were used for the second step (the introduced adenosine/thymidine base pair is underlined, the flanking sequences are homologous to the Nras BAC sequence): G12D S: 5′-TTTTTGCTGGTGTGAAATGACTGAGTACAAACTGGTGGTGGTTGGAGCAGA TGGTGTTGGGAAAAGCGCCTTGACGATCCAGCTAATCCAGAACCACTTT-3′; G12D AS: 5′-AAAGTGGTTCTGGATTAGCTGGATCGTCAAGGCGCTTTTCCCAACACCAT CTGCTCCAACCACCACCAGTTTGTACTCAGTCATTTCACACCAGCAAAAA-3′. To introduce a loxP511 site in the RP23-341F12 BAC, the following oligos were used for the second step (loxP511 is underlined, the flanking sequences are homologous to the BAC sequence around position 95 kb): 95 kb loxP511 S: 5′-ACGTGTGAGCTCCGTGGACAACTCTCCCCGAAGATAACTTCGTATAGTATACATTATACGAAGTTAT GTGACTCAGGGACCCTCTCAAGTGAGGCTCAGC-3′; 95 kb loxP511 AS: 5′-GCTGAGCCTCACTTGAGAGGGTCCCTGAGTCACATAACTTCGTATAATGTATACTATACGAAGTTAT CTTCGGGGAGAGTTGTCCACGGAGCTCACACGT-3′.
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Thymidine
Thymidine
Thymidine is a pyrimidine nucleoside that serves as a building block for DNA synthesis.
It plays a crucial role in cell division and proliferation, making it an important research target for studies on DNA replication, cell growth, and related biological processes.
The PubCompare.ai platform can help streamline your Thymidine research by identifying the most reproducible and accurate protocols from the scientific literature, preprints, and patents.
Compare methods side-by-side to find the best approach and products for your experiments, ensuring consistent, reliable results.
Visit PubCompare.ai today and take your Thymidine research to new heights.
It plays a crucial role in cell division and proliferation, making it an important research target for studies on DNA replication, cell growth, and related biological processes.
The PubCompare.ai platform can help streamline your Thymidine research by identifying the most reproducible and accurate protocols from the scientific literature, preprints, and patents.
Compare methods side-by-side to find the best approach and products for your experiments, ensuring consistent, reliable results.
Visit PubCompare.ai today and take your Thymidine research to new heights.
Most cited protocols related to «Thymidine»
2',5'-oligoadenylate
Adenosine
Base Pairing
Buffers
DNA, Double-Stranded
Ethanol
Homologous Sequences
NRAS protein, human
Oligonucleotides
Point Mutation
Thymidine
Consensus Sequence
DNA Library
Gene Knockout Techniques
Gene Products, Protein
Genes
Genome
Genome, Human
Homo sapiens
Mus
Open Reading Frames
Proteins
Thymidine
Clustered Regularly Interspaced Short Palindromic Repeats
Microtubule-Associated Proteins
Premature Birth
Thymidine
Transcription Termination, Genetic
Cuboid Bone
dihydrofolate
Diphosphates
Electrostatics
Friction
glucosyltransferase D
Halogens
Homo sapiens
Hydrogen
Hydrogen Bonds
inhibitors
Ligands
Mitogen-Activated Protein Kinase 10
NADP
NADPH Dehydrogenase
Oxidoreductase
Pressure
Proteins
Sodium Chloride
Staphylococcus aureus
Tetrahydrofolate Dehydrogenase
Thrombin
Thymidine
L929, NIH 3T3, and HeLa-B cells were grown in DME medium (GIBCO) supplemented with 10% fetal calf serum.
Centrin cDNA was sub-cloned in the pEGFP-N1 vector (Clontech) and cells were transformed by electroporation. Stable clones expressing the centrin/GFP fusion protein were then isolated from each of the three parental cell lines, by using the limited dilution method in the presence of 500 μg/ml G418. Multiple independent clones, expressing ∼20 times the endogenous level of centrin, were kept for each of the three parental cell lines. The centrioles in all of the clones exhibited a similar behavior to that described here.
Synchronization in early G1 was accomplished by a single thymidine block of 20 h (5 mM thymidine for L929 and 2 mM for HeLa). Mitotic cells were then collected by shakeoff 8 or 20 h after releasing the block (for L929 and HeLa, respectively). Cells were then replated on coverslips and used 2 h later. Synchronization at the G1/S border was accomplished using the double-thymidine block technique. To determine the duration of S and G2 we incubated cells at various times after thymidine washout with 30 μM BrdU for 15 min and then analyzed them by FACS®. The maximum content of S cells (by BrdU incorporation) was reached 1–4 h after release. The maximum number of G2 cells (double DNA content and no BrdU incorporation) was observed ∼5 h after release in L929 cells and 9–10 h in HeLa cells.
Centrin cDNA was sub-cloned in the pEGFP-N1 vector (Clontech) and cells were transformed by electroporation. Stable clones expressing the centrin/GFP fusion protein were then isolated from each of the three parental cell lines, by using the limited dilution method in the presence of 500 μg/ml G418. Multiple independent clones, expressing ∼20 times the endogenous level of centrin, were kept for each of the three parental cell lines. The centrioles in all of the clones exhibited a similar behavior to that described here.
Synchronization in early G1 was accomplished by a single thymidine block of 20 h (5 mM thymidine for L929 and 2 mM for HeLa). Mitotic cells were then collected by shakeoff 8 or 20 h after releasing the block (for L929 and HeLa, respectively). Cells were then replated on coverslips and used 2 h later. Synchronization at the G1/S border was accomplished using the double-thymidine block technique. To determine the duration of S and G2 we incubated cells at various times after thymidine washout with 30 μM BrdU for 15 min and then analyzed them by FACS®. The maximum content of S cells (by BrdU incorporation) was reached 1–4 h after release. The maximum number of G2 cells (double DNA content and no BrdU incorporation) was observed ∼5 h after release in L929 cells and 9–10 h in HeLa cells.
antibiotic G 418
Bromodeoxyuridine
Cell Lines
Centrioles
Clone Cells
Cloning Vectors
DNA, Complementary
Electroporation
Fetal Bovine Serum
HeLa Cells
L929 Cells
NIH 3T3 Cells
Parent
Proteins
Technique, Dilution
Thymidine
Trimethoprim-Sulfamethoxazole Combination
Most recents protocols related to «Thymidine»
To evaluate the proliferative capacity of activated immune cells, SEB-activated MNCs from lungs or in vitro SEB-activated splenocytes were treated with thymidine (methyl-3H; PerkinElmer Health Sciences, United States) isotope at a concentration of 1µCi/well and incubated for 16 h to and then radioactivity was measured using a liquid-scintillation counter (MicroBeta TriLux; PerkinElmer, United States).
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Isotopes
Lung
Radioactivity
Scintillation Counters
Thymidine
Pretreated cells were planted in 6 well plates for about 24 h. The middle of the cells in each plate was scratched using a sterilized 200 μL pipette tip, followed by washing with 1 × PBS and then adding 2 ml DMEM containing 2% FBS and 1 mM thymidine (Sigma-Aldrich, USA) into each well. Monitoring the scratches width at 0 and 24 h, respectively.
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Thymidine
Six- to seven-week-old female Balb/c mice (Harlan Laboratories) were immunized subcutaneously with 50 µg of recombinant trimeric prefusion-stabilized spike protein emulsified with Incomplete Freund’s adjuvant (Sigma, USA) and boosted 4 weeks later with the same dose of spike protein with Complete Freund’s Adjuvant. Mice with high antibody titer as determined by ELISA were selected for fusion. Four days before the fusion, the mice received three intravenous boosts of 100 µg of spike protein without adjuvant. Mouse splenocytes were harvested and fused with Sp2/0 myeloma cells (ATCC, CRL-1581) to generate antibody-producing hybridoma cells. After hypoxanthine–aminopterin–thymidine (HAT) selective culture, the hybridomas were screened by direct ELISA using MaxiSorp microtiter plates (VWR, USA) coated with 1 µg/ml of recombinant spike protein. Five positive primary hybridoma clones were sub-cloned twice by limiting dilution to obtain stable cell lines secreting monoclonal antibodies. The class and subclass of the mAbs were identified using a mouse isotype kit (Roche, USA). Ten hybridoma cell lines exhibiting high reactivity against Spike protein (S) belonging to the IgG subclass IgG1 were selected and two of them, SpMA-01 and SpMA-02, were investigated further to develop the LFIA.
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Aminopterin
Antibody-Producing Cells
ATP8A2 protein, human
Cell Lines
Cells
Enzyme-Linked Immunosorbent Assay
Females
Freund's Adjuvant
Hybridomas
Hypoxanthine
IgG1
Immunoglobulin Isotypes
Immunoglobulins
Mice, Inbred BALB C
Monoclonal Antibodies
M protein, multiple myeloma
Multiple Myeloma
Mus
Pharmaceutical Adjuvants
S-phenyl-N-acetylcysteine
Technique, Dilution
Thymidine
To assess the distribution of proliferating cells in the VZ, lizards injected with [3H]-thymidine with a survival time of 1.5 h were used (n = 5). The VZ was divided in six different regions, including three sulcal zones (sulcus medalis, sulcus lateralis and sulcus ventralis/terminalis) and three intersulcal zones (intersulcus corticalis, intersulcus lateralis, and intersulcus septalis) (Figure 1B ). The number of [3H]-thymidine labeled cells was counted in all these regions relative to the total number of cells. This quantification was performed in two telencephalic levels: one pre-commissural (anterior) and one post-commissural (posterior), analyzing for each level a total of 7 semithin sections which were 9 μm apart to avoid counting the same cell twice. Different types of counts were performed by quantifying the total number of labeled cells/1000 cells considering sulci vs. intersulcal regions, comparing between the different sulci and intersulcal regions and differentiating between the pre- and post-commissural levels for each animal.
To characterize the ultrastructure of VZ proliferative cells and their derivatives, the brains of specimens with 1.5, 6, 12, 24, and 72 h survival times were examined. Between 50 and 150 [3H]-thymidine-positive ([3H]-thy+) cells were analyzed for each survival time, including at least two different antero-posterior levels per lizard. These cells were studied by transmission electron microscopy (TEM) to determine their ultrastructural characteristics. Counts were also made of the number of cells in mitosis (M phase) labeled relative to the total number of [3H]-thy+ cells.
The analysis of specimens with long survival times (1, 3, 6, and 12 months) focused mainly on the cell layer of the MC, although we also investigated whether there were labeled cells in the walls of the LVs. Within the MC we analyzed the ultrastructure of 25–50 [3H]-thy+ cells from each survival time to see to which neuronal type they corresponded.
To characterize the ultrastructure of VZ proliferative cells and their derivatives, the brains of specimens with 1.5, 6, 12, 24, and 72 h survival times were examined. Between 50 and 150 [3H]-thymidine-positive ([3H]-thy+) cells were analyzed for each survival time, including at least two different antero-posterior levels per lizard. These cells were studied by transmission electron microscopy (TEM) to determine their ultrastructural characteristics. Counts were also made of the number of cells in mitosis (M phase) labeled relative to the total number of [3H]-thy+ cells.
The analysis of specimens with long survival times (1, 3, 6, and 12 months) focused mainly on the cell layer of the MC, although we also investigated whether there were labeled cells in the walls of the LVs. Within the MC we analyzed the ultrastructure of 25–50 [3H]-thy+ cells from each survival time to see to which neuronal type they corresponded.
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Animals
Brain
Cells
Cell Survival
Cell Wall
derivatives
Division Phase, Cell
Lizards
Mitosis
Neurons
Telencephalon
Thymidine
Transmission Electron Microscopy
Lizards received intraperitoneal injections of [3H]-thymidine (Amersham; specific activity 5 Ci/mmol). Depending on their survival time, the final dose was different. For survival times of 1.5 h to 3 days, the animals received a single injection with a dose of 5 μCi/g body weight (b. wt.), while for longer survival times (1–12 months) animals received daily injections (5 μCi/g b. wt.) during three consecutive days, up to a total dose of 15 μCi/g b. wt.
For short survival times, we injected four lizards (n = 4) for each survival time (6, 12, 24, and 72 h), except for the 1.5 h survival time, for which we injected five (n = 5). For long survival times (1, 3, 6, and 12 months) we injected 3 animals for each time (n = 3).
Following their corresponding survival time, the animals were deeply anesthetized with Ketolar (ketamine hydrochloride, 0.6 mg/g b. wt.) and perfused with saline (0.9% NaCl), followed by a fixative consisting of 4% PFA and 2% GA. The complete bodies of the lizards were postfixed in the same fixative during 24 h. The brains were removed from the skull, sectioned frontally or longitudinally on a vibratome at 200 μm, postfixed in 2% osmium tetroxide for 2 h, rinsed, dehydrated, and embedded in epoxy resin (Durcupan, Sigma, San Luis, MO, USA). Semithin sections were cut at 1.5 μm with an ultramicrotome (UC6 Ultracut, Leica, Wetzlar, Germany) and mounted on gelatin-coated glass-slides, which were dipped in LM-1 hypercoat emulsion (Amersham), dried in the dark, and stored at 4°C for 30 days. The autoradiographs were developed using standard methods and counterstained with 1% toluidine blue.
For short survival times, we injected four lizards (n = 4) for each survival time (6, 12, 24, and 72 h), except for the 1.5 h survival time, for which we injected five (n = 5). For long survival times (1, 3, 6, and 12 months) we injected 3 animals for each time (n = 3).
Following their corresponding survival time, the animals were deeply anesthetized with Ketolar (ketamine hydrochloride, 0.6 mg/g b. wt.) and perfused with saline (0.9% NaCl), followed by a fixative consisting of 4% PFA and 2% GA. The complete bodies of the lizards were postfixed in the same fixative during 24 h. The brains were removed from the skull, sectioned frontally or longitudinally on a vibratome at 200 μm, postfixed in 2% osmium tetroxide for 2 h, rinsed, dehydrated, and embedded in epoxy resin (Durcupan, Sigma, San Luis, MO, USA). Semithin sections were cut at 1.5 μm with an ultramicrotome (UC6 Ultracut, Leica, Wetzlar, Germany) and mounted on gelatin-coated glass-slides, which were dipped in LM-1 hypercoat emulsion (Amersham), dried in the dark, and stored at 4°C for 30 days. The autoradiographs were developed using standard methods and counterstained with 1% toluidine blue.
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Animals
Autoradiography
Body Weight
Brain
Cranium
Desiccation
Durcupan
Emulsions
Epoxy Resins
Fixatives
Gelatins
Human Body
Injections, Intraperitoneal
Ketamine Hydrochloride
Lizards
Normal Saline
Osmium Tetroxide
Saline Solution
Thymidine
Tolonium Chloride
Ultramicrotomy
Top products related to «Thymidine»
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Thymidine is a nucleoside that is a component of DNA. It serves as a building block for DNA synthesis and is essential for cellular division and growth.
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3H-thymidine is a radioactively labeled nucleoside that can be used as a tracer in biological research. It is a stable isotope of the DNA base thymine, with the hydrogen atom at the 3' position of the deoxyribose sugar being replaced with a tritium (hydrogen-3) atom. 3H-thymidine can be incorporated into newly synthesized DNA during cellular replication, allowing for the identification and quantification of proliferating cells.
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Nocodazole is a synthetic compound that acts as a microtubule-destabilizing agent. It functions by binding to and disrupting the polymerization of microtubules, which are essential components of the cytoskeleton in eukaryotic cells. This property makes Nocodazole a valuable tool in cell biology research for studying cell division, cell motility, and other cellular processes that rely on the dynamics of the microtubule network.
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Fetal Bovine Serum (FBS) is a cell culture supplement derived from the blood of bovine fetuses. FBS provides a source of proteins, growth factors, and other components that support the growth and maintenance of various cell types in in vitro cell culture applications.
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3H-thymidine is a radioactive compound used in biological research. It is a tritium-labeled form of the nucleoside thymidine, which is incorporated into DNA during cell division. 3H-thymidine can be used to measure cellular proliferation and DNA synthesis.
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DMEM (Dulbecco's Modified Eagle's Medium) is a cell culture medium formulated to support the growth and maintenance of a variety of cell types, including mammalian cells. It provides essential nutrients, amino acids, vitamins, and other components necessary for cell proliferation and survival in an in vitro environment.
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Penicillin/streptomycin is a commonly used antibiotic solution for cell culture applications. It contains a combination of penicillin and streptomycin, which are broad-spectrum antibiotics that inhibit the growth of both Gram-positive and Gram-negative bacteria.
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BrdU is a synthetic nucleoside that is an analog of the DNA base thymidine. It can be incorporated into the newly synthesized DNA of replicating cells, substituting for thymidine during the DNA synthesis phase of the cell cycle.
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[methyl-3H]-thymidine is a radiolabeled nucleoside used as a tracer in biological research applications. It is commonly used to study cell proliferation and DNA synthesis.
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Lipofectamine 2000 is a cationic lipid-based transfection reagent designed for efficient and reliable delivery of nucleic acids, such as plasmid DNA and small interfering RNA (siRNA), into a wide range of eukaryotic cell types. It facilitates the formation of complexes between the nucleic acid and the lipid components, which can then be introduced into cells to enable gene expression or gene silencing studies.
More about "Thymidine"
Thymidine, also known as dThd or dT, is a pyrimidine nucleoside that plays a crucial role in DNA synthesis and cell division.
It serves as a fundamental building block for DNA replication, making it an essential component in cellular growth and proliferation. 3H-thymidine, a radioactive isotope of thymidine, is commonly used as a tracer to study DNA synthesis and cell cycle dynamics.
The incorporation of thymidine or its analogs, such as BrdU (5-bromo-2'-deoxyuridine), into newly synthesized DNA is a widely used technique to assess cell proliferation and track the progression of the cell cycle.
Nocodazole, a microtubule-disrupting agent, can be used in combination with thymidine to synchronize cells in the G2/M phase, allowing for the investigation of specific cell cycle events.
Thymidine research often involves cell culture techniques, where it is supplemented in growth media like DMEM (Dulbecco's Modified Eagle Medium) and used in conjunction with other components such as fetal bovine serum (FBS) and penicillin/streptomycin antibiotics.
The use of [methyl-3H]-thymidine, a radiolabeled version of thymidine, enables the quantification of DNA synthesis and cell proliferation through techniques like scintillation counting.
Optimizing thymidine-based protocols can be streamlined using the PubCompare.ai platform, which helps researchers identify the most reproducible and accurate methods from the scientific literature, preprints, and patents.
By comparing protocols side-by-side, researchers can select the best approaches and products for their thymidine-related experiments, ensuring consistent and reliable results.
Whether you're studying DNA replication, cell growth, or related biological processes, PubCompare.ai can elevate your thymidine research to new heights.
It serves as a fundamental building block for DNA replication, making it an essential component in cellular growth and proliferation. 3H-thymidine, a radioactive isotope of thymidine, is commonly used as a tracer to study DNA synthesis and cell cycle dynamics.
The incorporation of thymidine or its analogs, such as BrdU (5-bromo-2'-deoxyuridine), into newly synthesized DNA is a widely used technique to assess cell proliferation and track the progression of the cell cycle.
Nocodazole, a microtubule-disrupting agent, can be used in combination with thymidine to synchronize cells in the G2/M phase, allowing for the investigation of specific cell cycle events.
Thymidine research often involves cell culture techniques, where it is supplemented in growth media like DMEM (Dulbecco's Modified Eagle Medium) and used in conjunction with other components such as fetal bovine serum (FBS) and penicillin/streptomycin antibiotics.
The use of [methyl-3H]-thymidine, a radiolabeled version of thymidine, enables the quantification of DNA synthesis and cell proliferation through techniques like scintillation counting.
Optimizing thymidine-based protocols can be streamlined using the PubCompare.ai platform, which helps researchers identify the most reproducible and accurate methods from the scientific literature, preprints, and patents.
By comparing protocols side-by-side, researchers can select the best approaches and products for their thymidine-related experiments, ensuring consistent and reliable results.
Whether you're studying DNA replication, cell growth, or related biological processes, PubCompare.ai can elevate your thymidine research to new heights.