Disclaimer

Clicking the images or links will redirect you to a website hosted by BenchSci that provides third-party scientific content. Neither the content nor the BenchSci technology and processes for selection have been evaluated by us; we are providing them as-is and without warranty of any kind, including for use or application of the Thermo Fisher Scientific products presented.

  • Primary Antibodies ›
  • Chk1 Antibodies

Invitrogen

Phospho-Chk1 (Ser345) Polyclonal Antibody

Advanced Verification
View all (69) Chk1 antibodies

{{$productOrderCtrl.translations['antibody.pdp.commerceCard.promotion.promotions']}}

{{$productOrderCtrl.translations['antibody.pdp.commerceCard.promotion.viewpromo']}}

{{$productOrderCtrl.translations['antibody.pdp.commerceCard.promotion.promocode']}}: {{promo.promoCode}} {{promo.promoTitle}} {{promo.promoDescription}}. {{$productOrderCtrl.translations['antibody.pdp.commerceCard.promotion.learnmore']}}

Datasheet
Protocols
Questions & Answers
Datasheet
Protocols
Questions & Answers

Cite Phospho-Chk1 (Ser345) Polyclonal Antibody

  • Antibody Testing Data (2)
  • Advanced Verification (1)
Phospho-Chk1 (Ser345) Antibody in Western Blot (WB)
Group 53 Created with Sketch.
Phospho-Chk1 (Ser345) Antibody in Western Blot (WB)
Group 53 Created with Sketch.

FIGURE: 1 / 3

{{ $ctrl.currentElement.advancedVerification.fullName }}
{{ $ctrl.currentElement.advancedVerification.text }}

Phospho-Chk1 (Ser345) Antibody (PA5-104692) in WB

Western blot was performed using Anti-Phospho-Chk1 (Ser345) Polyclonal Antibody (Product # PA5-104692) and a 55 kDa band corresponding to Phospho-Chk1 (Ser345) was observed to be induced upon Calyculin A, Etoposide and Hydroxyurea treatments in HeLa cells and Calyculin A treatment in U-2 OS cells. Whole cell extracts (30 µg lysate) of HeLa (Lane 1), HeLa treated with Calyculin A (100 nM for 1 hour) (Lane 2)... View More {{ $ctrl.currentElement.advancedVerification.fullName }} validation info. View more
Published figure supplied by benchsci-logo
PMID: {{$ctrl.currentElement.benchSciPubmedId}}
View Product

{{$ctrl.videoDesc}}

{{$ctrl.videoLongDesc}}

Phospho-Chk1 (Ser345) Antibody in Western Blot (WB)
Phospho-Chk1 (Ser345) Antibody in Western Blot (WB)
Phospho-Chk1 (Ser345) Antibody
Phospho-Chk1 (Ser345) Polyclonal Antibody

Product Details

PA5-104692

Applications
Tested Dilution
Publications

Western Blot (WB)

1:500-1:2,000
-

Immunohistochemistry (IHC)

1:50-1:200
-

Immunocytochemistry (ICC/IF)

1:100-1:500
-
Product Specifications

Species Reactivity

Human, Mouse, Rat

Host/Isotype

Rabbit / IgG

Class

Polyclonal

Type

Antibody

Immunogen

A synthesized peptide derived from human CHEK1(Accession O14757), corresponding to amino acid residues around phosphorylated Ser345.
View immunogen

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

1 mg/mL

Purification

sequential chromatography

Storage buffer

PBS, pH 7.4, with 50% glycerol

Contains

0.02% sodium azide

Storage conditions

-20°C

Shipping conditions

Wet ice

RRID

AB_2816165

Product Specific Information

Antibody detects endogenous levels of Chk1 only when phosphorylated at Serine 345.

Target Information

CHEK1 (CHK1) is a serine/threonine protein kinase involved in preventing replication when DNA integrity is compromised. CHK1 is a key mediator in the DNA damage-induced checkpoint network. CHK1 is an evolutionarily conserved protein kinase that functions to ensure genomic integrity upon genotoxic stress. When the G2 or S checkpoint is abrogated by the inhibition of CHK1, p53-deficient cancer cells undergo mitotic catastrophe and eventually apoptosis, whereas normal cells are still arrested in the G1 phase. Thus, CHK1 inhibitors can preferentially potentiate the efficacy of DNA damaging agents in cancer cells, and Chk1 is an attractive therapeutic target for cancer treatment, especially since approximately 50% of all human cancers are p53-deficient.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

References (0)

Have you cited this product in a publication?
Let us know so we can reference it here.
Cite this product

Bioinformatics

Protein Aliases: Cell cycle checkpoint kinase; checkpoint kinase 1 homolog; Checkpoint kinase-1; Checkpoint, S. pombe, homolog of, 1; CHK1 checkpoint homolog; Chk1-S; homolog of Chk1-S; HRD1 Protein; rad27 homolog; Serine/threonine-protein kinase Chk1; Synoviolin

View more View less

Gene Aliases: C85740; CHEK1; CHK1; rad27

View more View less

UniProt ID: (Human) O14757, (Rat) Q91ZN7, (Mouse) O35280

View more View less

Entrez Gene ID: (Human) 1111, (Rat) 140583, (Mouse) 12649

View more View less

Function(s)
protein kinase activity protein serine/threonine kinase activity protein binding ATP binding kinase activity histone kinase activity (H3-T11 specific) nucleotide binding transferase activity transferase activity, transferring phosphorus-containing groups
Process(es)
DNA damage checkpoint G2/M transition of mitotic cell cycle DNA repair protein phosphorylation cellular response to DNA damage stimulus DNA damage induced protein phosphorylation regulation of gene expression regulation of double-strand break repair via homologous recombination regulation of transcription from RNA polymerase II promoter in response to UV-induced DNA damage negative regulation of G2/M transition of mitotic cell cycle peptidyl-threonine phosphorylation histone H3-T11 phosphorylation regulation of cell proliferation negative regulation of mitotic nuclear division regulation of mitotic centrosome separation chromatin-mediated maintenance of transcription cellular response to mechanical stimulus cellular response to organic substance cellular response to caffeine negative regulation of DNA biosynthetic process regulation of histone H3-K9 acetylation cell cycle phosphorylation G2 DNA damage checkpoint DNA replication replicative senescence regulation of signal transduction by p53 class mediator
It has to be done as per old AB suggested Products section.
guarantee_icon

Performance Guarantee

If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*

Learn more
help_icon

We're here to help

Get expert recommendations for common problems or connect directly with an on staff expert for technical assistance related to applications, equipment and general product use.

Contact tech support

Your items have has been added!


Host server : magellan-search-649bfd9c6b-jlsz7:80/100.66.128.142:80.
git-commit: 6001d82975f0049f9efc09ec70b1b2d89229eeb3
git-url: https://github.com/thermofisher/magellan-search
git-branch: release/2.36.2-2025.09.39-1.0