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Type
Conjugated Primary Antibody
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Conjugated with
ALEXA FLUOR® 594
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Host organism
Rabbit (Oryctolagus cuniculus)
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Target Protein Peptide
CHK2 ser516
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Specificity
This antibody reacts specifically with CHK2 (ser516)
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Modification
Phosphorylation
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Modification site
ser516
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Clonality
Polyclonal Antibody
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Clone
Polyclonal Antibodies
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Concentration
1ug per 1ul
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Subcellular locations
N/A
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Antigen Source
KLH conjugated synthetic phosphopeptide derived from human CHK2 around the phosphorylation site of ser516
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Gene ID
11200
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Swiss Prot
N/A
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Applications
IF(IHC-P)
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Applications with corresponding dilutions
IF(IHC-P)(1:50-200)
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Cross reactive species
Human (Homo sapiens), Mouse (Mus musculus), Rat (Rattus norvegicus)
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Cross Reactive Species details
No significant cross reactivity has been observed for this antibody for the tested species. However, note that due to limited knowledge it is impossible to predict with 100% guarantee that the antibody does not corss react with any other species.
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Background information
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.
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Purification method
Purified by Protein A.
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Storage
Water buffered solution containing 100ug/ml BSA, 50% glycerol and 0.09% sodium azide. Store at 4°C for 12 months.
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Excitation emission
590nm/617nm
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Synonyms
Chk2 Ser516; bA444G7; CHK2 checkpoint homolog; CHK2_HUMAN; Serine/threonine-protein kinase Chk2; CDS 1; CDS1; Checkpoint kinase 2; Checkpoint like protein CHK2; Chek 2; Chek2; Chk 2; CHK2 checkpoint homolog S. pombe; CHK2 checkpoint homolog; HuCds 1; HuCds1; LFS 2; LFS2; PP1425; RAD 53; RAD53; Rad53 homolog; Serine/threonine protein kinase Chk2.
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Also known as
CHK2 (ser516) Polyclonal Antibody
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Other name
Anti-CHK2 (ser516) Polyclonal
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Advisory
Avoid freeze/thaw cycles as they may denaturate the polypeptide chains of the antibody, thus reducing its reactivity, specificity and sensitivity. For antibodies that are in liquid form or reconstituted lyophilized antibodies small amounts could become entrapped on the seal or the walls of the tube. Prior to use briefly centrifuge the vial to gather all the solution on the bottom.
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Properties
For facs or microscopy Alexa 1 conjugate.
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Conjugation
Alexa Fluor, ALEXA FLUOR® 594
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Conjugated
Alexa conjugate 1
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Description
This antibody needs to be stored at + 4°C in a fridge short term in a concentrated dilution. Freeze thaw will destroy a percentage in every cycle and should be avoided. Antibody for research use.
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Group
Polyclonals and antibodies
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About
Polyclonals can be used for Western blot, immunohistochemistry on frozen slices or parrafin fixed tissues. The advantage is that there are more epitopes available in a polyclonal antiserum to detect the proteins than in monoclonal sera.
