You Searched For: 5-Bromo-1H-indazole-3-carboxylic+acid

Supplier: Thermo Fisher Scientific

Description: Hydroxyurea ≥98%

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Supplier: Thermo Fisher Scientific

Description: Hydroxyurea 98%

MSDS

Supplier: Apollo Scientific

Description: Anti-neoplastic. Inactivates ribonucleoside reductase byformation of free radical nitroxide. This blocks synthesis of deoxynucleotides which inhibits DNA synthesis.

Supplier: Thermo Fisher Scientific

Description: Zileuton

Catalog Number: (USBIH9120-25)

Supplier: US Biological

Description: Hydroxyurea

UOM: 1 * 25 g

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Catalog Number: (400046-5)

Supplier: Merck Millipore (Calbiochem‎)

Description: Hydroxyurea, Millipore®

UOM: 1 * 5 g

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Catalog Number: (1332000.)

Supplier: USP

Description: USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.

UOM: 1 * 200 mg

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Catalog Number: (MOLEM18908038)

Supplier: Molekula

Description: Hydroxyurea

UOM: 1 * 25 g

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 This is a MarketSource item. Additional charges may apply

Catalog Number: (PROOBP197)

Supplier: LGC Standards PROMOCHEM

Description: Hydroxyurea

UOM: 1 * 200 mg

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Supplier: MP Biomedicals

Description: Hydroxyurea is a inhibitor of DNA synthesis in vivo, and an antiviral and antineoplastic agent which is S-phase specific.

Catalog Number: (MOLE10872383-100G)

Supplier: Molekula

Description: Hydroxyurea

UOM: 1 * 100 g

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 This is a MarketSource item. Additional charges may apply

Supplier: Spectrum Chemical

Description: Hydroxyurea, USP is an antineoplastic drug used in myeloproliferative disorders. It has also been considered useful in treating painful attacks in sickle-cell disease and diseases like AIDS. The USP grade indicates it is graded suitable for personal care, cosmetic and pharmaceutical applications. All Spectrum Chemical USP grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

Catalog Number: (BOSSBS-5275R-CY3)

Supplier: Bioss

Description: Chk2 is a serine/threonine kinase involved in the control of cell cycle checkpoints, and may also participate in transduction of the DNA damage and replicational stress signals. Chk2 is the mammalian ortholog of the budding yeast Rad53 and fission yeast Cds1 checkpoint kinases. The amino-terminal domain of Chk2 contains a series of seven serine and threonine residues (Ser19, Thr26, Ser28, Ser33, Ser35, Ser50 and Thr68) followed by glutamine (SQ or TQ motif). These are known to be preferred sites for phosphorylation by ATM/ATR kinases. Indeed, after DNA damage by ionizing radiation (IR), UV irradiation or hydroxyurea treatment, Thr68 and other sites in this region become phosphorylated by ATM/ATR. The SQ/TQ cluster domain, therefore, seems to have a regulatory function. Phosphorylation at Thr68 is a prerequisite for the subsequent activation step, which is attributable to autophosphorylation of Chk2 on residues Thr383 and Thr387 in the activation loop of the kinase domain. Chk2 inhibits CDC25C phosphatase by phosphorylating it on Ser-216, preventing the entry into mitosis. This kinase may have a role in meiosis as well. Kinase activity is up regulated by autophosphorylation and the protein is rapidly phosphorylated in response to DNA damage and to replication block.

UOM: 1 * 100 µl

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Catalog Number: (BOSSBS-5260R)

Supplier: Bioss

Description: Chk2 is a serine/threonine kinase involved in the control of cell cycle checkpoints, and may also participate in transduction of the DNA damage and replicational stress signals. Chk2 is the mammalian ortholog of the budding yeast Rad53 and fission yeast Cds1 checkpoint kinases. The amino-terminal domain of Chk2 contains a series of seven serine and threonine residues (Ser19, Thr26, Ser28, Ser33, Ser35, Ser50 and Thr68) followed by glutamine (SQ or TQ motif). These are known to be preferred sites for phosphorylation by ATM/ATR kinases. Indeed, after DNA damage by ionizing radiation (IR), UV irradiation or hydroxyurea treatment, Thr68 and other sites in this region become phosphorylated by ATM/ATR. The SQ/TQ cluster domain, therefore, seems to have a regulatory function. Phosphorylation at Thr68 is a prerequisite for the subsequent activation step, which is attributable to autophosphorylation of Chk2 on residues Thr383 and Thr387 in the activation loop of the kinase domain. Chk2 inhibits CDC25C phosphatase by phosphorylating it on Ser-216, preventing the entry into mitosis. This kinase may have a role in meiosis as well. Kinase activity is up regulated by autophosphorylation and the protein is rapidly phosphorylated in response to DNA damage and to replication block.

UOM: 1 * 100 µl

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Catalog Number: (BOSSBS-4000R-CY7)

Supplier: Bioss

Description: Chk2 is a serine/threonine kinase involved in the control of cell cycle checkpoints, and may also participate in transduction of the DNA damage and replicational stress signals. Chk2 is the mammalian ortholog of the budding yeast Rad53 and fission yeast Cds1 checkpoint kinases. The amino-terminal domain of Chk2 contains a series of seven serine and threonine residues (Ser19, Thr26, Ser28, Ser33, Ser35, Ser50 and Thr68) followed by glutamine (SQ or TQ motif). These are known to be preferred sites for phosphorylation by ATM/ATR kinases. Indeed, after DNA damage by ionizing radiation (IR), UV irradiation or hydroxyurea treatment, Thr68 and other sites in this region become phosphorylated by ATM/ATR. The SQ/TQ cluster domain, therefore, seems to have a regulatory function. Phosphorylation at Thr68 is a prerequisite for the subsequent activation step, which is attributable to autophosphorylation of Chk2 on residues Thr383 and Thr387 in the activation loop of the kinase domain. Chk2 inhibits CDC25C phosphatase by phosphorylating it on Ser-216, preventing the entry into mitosis. This kinase may have a role in meiosis as well. Kinase activity is up regulated by autophosphorylation and the protein is rapidly phosphorylated in response to DNA damage and to replication block.

UOM: 1 * 100 µl

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Catalog Number: (BOSSBS-5275R-A350)

Supplier: Bioss

Description: Chk2 is a serine/threonine kinase involved in the control of cell cycle checkpoints, and may also participate in transduction of the DNA damage and replicational stress signals. Chk2 is the mammalian ortholog of the budding yeast Rad53 and fission yeast Cds1 checkpoint kinases. The amino-terminal domain of Chk2 contains a series of seven serine and threonine residues (Ser19, Thr26, Ser28, Ser33, Ser35, Ser50 and Thr68) followed by glutamine (SQ or TQ motif). These are known to be preferred sites for phosphorylation by ATM/ATR kinases. Indeed, after DNA damage by ionizing radiation (IR), UV irradiation or hydroxyurea treatment, Thr68 and other sites in this region become phosphorylated by ATM/ATR. The SQ/TQ cluster domain, therefore, seems to have a regulatory function. Phosphorylation at Thr68 is a prerequisite for the subsequent activation step, which is attributable to autophosphorylation of Chk2 on residues Thr383 and Thr387 in the activation loop of the kinase domain. Chk2 inhibits CDC25C phosphatase by phosphorylating it on Ser-216, preventing the entry into mitosis. This kinase may have a role in meiosis as well. Kinase activity is up regulated by autophosphorylation and the protein is rapidly phosphorylated in response to DNA damage and to replication block.

UOM: 1 * 100 µl

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