Human Phospho-Chk1 (S345) Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human, mouse, and rat Chk1 when phosphorylated at S345. This antibody does not recognize Chk1 when unphosphorylated at S345.
  • Source
    Polyclonal Rabbit IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Phosphopeptide containing human Chk1 S345 site
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Detection of Human Phospho-Chk1 (S345) by Western Blot. Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line exposed to 50 J/m2 UV-C with a 2 hour recovery. PVDF membrane was probed with 1 µg/mL Rabbit Anti-Human Phospho-Chk1 (S345) Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2475) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band for Phospho-Chk1 (S345) was detected at approximately 55-60 kDa (as indicated). The phospho-specificity of this antibody was supported by decreased labeling following treatment with 600 U lambda -phosphatase ( lambda -PPase) for 1 hour. This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    • 12 months from date of receipt, -20 to -70 °C as supplied.
    • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Chk1

The Chk1 checkpoint kinase is an integral member of a signaling cascade that controls cell cycle progression. In response to genotoxic or replicative stress, Chk1 is phosphorylated by the ATM or ATM-related kinase (ATR) at S345. In turn, Chk1 phosphorylates downstream effectors, such as p53 or the Cdc25 phosphatases to halt cell cycle progression and allow time for repair of incurred damage.

  • Long Name:
    Checkpoint Kinase 1
  • Entrez Gene IDs:
    1111 (Human); 12649 (Mouse); 140583 (Rat)
  • Alternate Names:
    Checkpoint, S. pombe, homolog of, 1; CHEK1; CHK1 (checkpoint, S.pombe) homolog; CHK1 checkpoint homolog (S. pombe); Chk1; CHK1serine/threonine-protein kinase Chk1; EC 2.7.11; EC 2.7.11.1
Related Research Areas
Isotype Controls
Description Application Cat# Citations Images  

Normal Rabbit IgG Control

Ctrl AB-105-C 43  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Normal Rabbit IgG Control

Ctrl, CyTOF-ready MAB1050  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....
Secondary Antibodies
Description Application Cat# Citations Images  

Rabbit IgG HRP-conjugated Antibody

WB HAF008 23  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Rabbit IgG NorthernLights™ NL557-conjugated Antibody

Flow, IHC, ICC NL004 10
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Rabbit IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL005 2
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Rabbit IgG APC-conjugated Antibody

Flow F0111 1  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Rabbit IgG PE-conjugated Antibody

Flow F0110 2  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Rabbit IgG Fluorescein-conjugated Antibody

Flow F0112 5  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Rabbit IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL006 4
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Goat Anti-Rabbit IgG Biotinylated Antibody

WB BAF008 4
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Mouse/Rabbit IgG VisUCyte HRP Polymer Antibody

IHC VC002  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Rabbit IgG Antibody

WB AF008 1
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Rabbit IgG VisUCyte HRP Polymer Antibody

IHC VC003  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Rabbit IgG (H+L) Antibody

D-301-C-ABS2
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Have you used Human Phospho-Chk1 (S345) Antibody?

Submit a review and receive a $25US/€18/£15/$25CAN amazon gift card if you include an image - $10US/€7/£6/$10CAN Amazon card for reviews without an image. Limited to verified customers in USA, Canada and Europe.

Order Details

Contact Information

Calculators

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

=
÷
R&D Systems Guarantee

Monoclonal
Antibody
Panels For
Screening

Learn More
Monoclonal Antibodies

Feedback

Customer Information