Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.
Shipping
Frozen
Form
Liquid
Calculated MW
61 kDa
Clonality
Monoclonal
Clone No.
32G17
Isotype
IgG
抗原与靶点信息
Antigen & Target Information
Gene Name
CHEK2
Protein Name
Checkpoint kinase-2
Domain
Full length
Background
Chk2 (Checkpoint kinase 2) is a serine-threonine kinase mediating DNA-damage response and cell-cycle-checkpoint activation. Upon DNA double-strand break, ATM kinase phosphorylates and activates Chk2. Activated Chk2 phosphorylates downstream substrates such as Cdc25C and p53 to arrest cell-cycle progression and provide time window for DNA repair. Chk2 triggers G1/S and G2/M checkpoint responses, leading to cell-cycle arrest, DNA repair or apoptosis. Chk2 acts as a tumor suppressor; loss-of-function mutations impair DNA-damage response and elevate tumor risk.