Chk1 Protein, Human, Recombinant (GST)

Chk1 Protein, Human, Recombinant (GST) is expressed in Baculovirus insect cells with GST tag. The predicted molecular weight is 80.7kDa and the accession number is AAM78553.1.

Chk1 Protein, Human, Recombinant (GST)

パッケージサイズ	在庫状況	単価(税別)
50 μg	約5 days	￥ 114,500

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説明	Chk1 Protein, Human, Recombinant (GST) is expressed in Baculovirus insect cells with GST tag. The predicted molecular weight is 80.7kDa and the accession number is AAM78553.1.

Species	Human
Expression Host	Baculovirus-Insect Cells
Tag	GST
Accession Number	AAM78553.1
別名	checkpoint kinase 1, CHK1
Construction	A DNA sequence encoding the human CHK1 (AAM78553.1) (Met1-Thr476) was fused with the GST tag at the N-terminus.
Protein Purity	> 85 % as determined by SDS-PAGE
分子量	80.7kDa (predicted)

Endotoxin	< 1.0 EU per μg of the protein as determined by the LAL method
Formulation	Supplied as sterile 20mM Tris, 500mM NaCl, pH 7.4, 10% glycerol, 2mM GSHPlease contact us for any concerns or special requirements. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution	A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Stability & Storage	Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping	Kinases are highly recommended to be shipped at frozen temperature with blue ice or dry ice. Shipment made at ambient temperature may seriously affect the activity of the ordered products.
Research Background	CHK1 / CHEK1 contains 1 protein kinase domain and belongs to the protein kinase superfamily, CAMK Ser/Thr protein kinase family, NIM1 subfamily. It is a member of checkpoint kinases (Chks). Chks Checkpoint kinases (Chks) are serine/threonine kinases that are involved in the control of the cell cycle. There are two subtypes of chks that have so far been identified, CHK1 / CHEK1 and Chk2. They are essential components to delay cell cycle progression in normal and damaged cells and can act at all three cell cycle checkpoints. Chks are activated by phosphorylation. ATR kinase phosphorylates CHK1 / CHEK1 in response to single strand DNA breaks and ATM kinase phosphorylates Chk2 in response to double strand breaks. Chks phosphorylate Cdc25 phosphatase at Ser216, which leads to Cdc25 sequestration in the cytoplasm. Chks have a role in the physiological stress of hypoxia/reoxygenation. CHK1 / CHEK1 is required for checkpoint mediated cell cycle arrest in response to DNA damage or the presence of unreplicated DNA. CHK1 / CHEK1 may also negatively regulate cell cycle progression during unperturbed cell cycles.Cancer ImmunotherapyImmune CheckpointImmunotherapyTargeted Therapy

参考文献

1. Chen P, et al. (2000) The 1.7 a crystal structure of human cell cycle checkpoint kinase CHK1 / CHEK1: Implications for CHK1 / CHEK1 regulation. Cell. 100 (6): 681-92. 2. Sanchez Y, et al. (1997) Conservation of the CHK1 / CHEK1 checkpoint pathway in mammals: linkage of DNA damage to Cdk regulation through Cdc25. Science. 277 (5331): 1497-501. 3. Flaggs G, et al. (1998) Atm-dependent interactions of a mammalian CHK1 / CHEK1 homolog with meiotic chromosomes. Curr Biol. 7 (12): 977-86. 4. Chini CC, et al. (2005) Claspin, a regulator of CHK1 / CHEK1 in DNA replication stress pathway. DNA Repair. 3 (8-9): 1033-7.

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Chk1 Protein, Human, Recombinant (GST)

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