Anti-CHEK1 (Ab-317) antibody produced in rabbit
SIGMA/SAB4300390 - affinity isolated antibody
Synonym: Anti-CHK1 antibody produced in rabbit; Anti-CHK1 checkpoint homolog (S. pombe) antibody produced in rabbit
MDL Number: MFCD02262709
Product Type: Chemical
Immunohistochemistry Anti-CHEK1 (Ab-317): SAB4300390: Analysis of paraffin-embedded human breast carcinoma tissue using Anti-CHEK1 (Ab-317) antibody (left) or the same antibody preincubated with blocking peptide (right).
Immunoblotting Anti-CHEK1 (Ab-317): SAB4300390: Analysis of extracts from MDA231,HeLa and 293 cells using Anti-CHEK1 (Ab-317) antibody.
| antibody form | affinity isolated antibody |
| antibody product type | primary antibodies |
| biological source | rabbit |
| clone | polyclonal |
| concentration | 1 mg/mL |
| conjugate | unconjugated |
| form | buffered aqueous solution |
| immunogen sequence | (S-S-S-Q-P) |
| isotype | IgG |
| mol wt | ~56 kDa |
| NCBI accession no. | NP_001107593.1   |
| Quality Level | 100 |
| shipped in | wet ice |
| species reactivity | human |
| storage temp. | −20°C |
| target post-translational modification | unmodified |
| technique(s) | immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:50-1:100 |
| western blot: 1:500-1:1000 | |
| UniProt accession no. | O14757 |
| Disclaimer: | Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals. |
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| General description: | Chek1 is a protein kinase that inhibits mitotic entry after DNA damage, required for the DNA damage checkpoint and is strongly similar to murine Chek1. Checkpoint pathways control the order and timing of cell cycle transitions and ensure that critical events, such as DNA replication and chromosome segregation, are completed with high fidelity. The mouse and human proteins share 90% sequence identity through the protein kinase domains. The sequence of the 476-amino acid human Chek1 protein is 29%, 40%, and 44% identical to those of the fission yeast Chek1, C. elegans Chek1, and Drosophila 'grapes' (Grp) proteins, respectively. Chek1 is expressed ubiquitously as an approximately 2.4-kb mRNA, with the most abundant expression in thymus, testis, small intestine, and colon. The protein has altered mobility when isolated from cells treated with ionizing radiation, indicating that Chek1 is modified in response to DNA damage. In vitro, Chek1 directly phosphorylates a regulator of CDC2 tyrosine phosphorylation, CDC25C. In response to DNA damage, Chek1 phosphorylates and inhibits CDC25C, thus preventing activation of the CDC2-Cyclin-B complex and mitotic entry. |
| Immunogen: | Peptide sequence around aa. 315-319 (S-S-S-Q-P), according to the protein CHEK1. |
| Physical form: | Solution in phosphate-buffered saline containing 0.02% sodium azide and 50% glycerol |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Storage Temp. | −20°C |
| UNSPSC | 12352203 |