|Positive WB detected in||mouse thymus tissue, HeLa cells, K-562 cells|
|Positive IHC detected in||human lung cancer tissue|
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
|Positive IF detected in||HepG2 cells|
|Positive FC detected in||HepG2 cells|
|Western Blot (WB)||WB : 1:500-1:1000|
|Immunohistochemistry (IHC)||IHC : 1:50-1:500|
|Immunofluorescence (IF)||IF : 1:10-1:100|
|Sample-dependent, check data in validation data gallery|
10362-1-AP targets Chk1 in WB, IHC, IF, FC,ELISA applications and shows reactivity with human, mouse, rat samples.
|Tested Reactivity||human, mouse, rat|
|Cited Reactivity||human, mouse, rat|
|Host / Isotype||Rabbit / IgG|
|Immunogen||Chk1 fusion protein Ag0409|
|Full Name||CHK1 checkpoint homolog (S. pombe)|
|Calculated molecular weight||54 kDa|
|Observed molecular weight||50-55 kDa|
|GenBank accession number||BC004202|
|Gene ID (NCBI)||1111|
|Purification Method||Antigen affinity purification|
|Storage Buffer||PBS with 0.02% sodium azide and 50% glycerol pH 7.3.|
|Storage Conditions||Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.|
In response to DNA damage, mammalian cells prevent cell cycle progression through the control of critical cell cycle regulators. CHK1 (synonym: CHEK1), a homolog of the Schizosaccharomyces pombe Chk1 protein kinase, is required for the DNA damage checkpoint. Human Chk1 protein is modified in response to DNA damage. In vitro Chk1 binds to and phosphorylate the dual-specificity protein phosphatases Cdc25A, Cdc25B, and Cdc25C, which control cell cycle transitions by dephosphorylating cyclin-dependent kinases. CHK1 can be autophosphorylated(PMID:22941630) and ubiquitinated (PMID:19276361). It has 3 isoforms produced by alternative splicing with the molecular weight of 54 kDa, 44 kDa and 50 kDa.
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