Chk1 Antibody (YA505)

Cat. No.: HY-P80082: Data Sheet COA
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Chk1 Antibody (YA505) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Chk1.

For research use only. We do not sell to patients.

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Chk1 Antibody (YA505) Featured Recommendations:

1 Publications Citing Use of MCE Chk1 Antibody (YA505)

•Bioorg Chem. 2024 Sep 5:153:107802. [Abstract]

WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
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Background
Documentation

Description

Chk1 Antibody (YA505) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Chk1.

Host

Rabbit

Clonality

Recombinant,Monoclonal

Molecular Weight

Predicted band size: 54 kDa;

Observed band size: 54 kDa

Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.

Species Reactivity

Human, Mouse

SwissProt ID

O14757

Gene ID

1111 [NCBI]

Immunogen

Synthetic peptide corresponding to Human Chk1.AA range:431-476.

Application &
Dilution Ratio

Application	Dilution Ratio
WB WB: Western Blot	1:1000-1:2000
ICC/IF ICC/IF: Immunocytochemistry/Immunofluorescence	1:50-1:200
IHC-P IHC-P: Immunohistochemistry-Paraffin	1:50-1:200
FC FC: Flow Cytometry	1:50-1:100

Sensitivity	Endogenous	Purity	Protein A affinity purified.
Conjugation	Non-conjugated	Modification	Unmodified
Isotype	IgG

Appearance

Liquid

Formulation

Supplied in 1*TBS (pH7.4), 0.05% BSA and 40% Glycerol. Preservative: 0.05% Sodium Azide.

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Verification Image

ALL WB IHC-P ICC

Western blot analysis of extracts from Hela(lane 2(20μg) and Hela(lane 3(40μg), using Chk1 (HY-P80082) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in TBST for 2 hour at room temperature. The primary antibody (HY-P80082, 1/1000) and Loading control antibody (GAPDH, HY-P80954, 1/3000) was used in 5% BSA in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (HY-P8004/HY-P8001, 1/10,000) was used for 1 hour at room temperature.
Immunohistochemical analysis of paraffin-embedded human small intestine using Chk1 antibody. The section was pre-treated using heat mediated antigen retrieval with EDTA (pH 9.0) for 14 minutes. The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with TBST, and then probed with the primary antibody (HY-P80082, 1/100) for 30 minutes at room temperature. The detection was performed using Polymer HRP-conjugated Goat Anti-Mouse/Rabbit lgG(H&L) secondary antibody (HY-P83652). DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunohistochemical analysis of paraffin-embedded human prostate cancer using Chk1 antibody. The section was pre-treated using heat mediated antigen retrieval with EDTA (pH 9.0) for 14 minutes. The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with TBST, and then probed with the primary antibody (HY-P80082, 1/100) for 30 minutes at room temperature. The detection was performed using Polymer HRP-conjugated Goat Anti-Mouse/Rabbit lgG(H&L) secondary antibody (HY-P83652). DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunohistochemical analysis of paraffin-embedded human liver using Chk1 antibody. The section was pre-treated using heat mediated antigen retrieval with EDTA (pH 9.0) for 14 minutes. The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with TBST, and then probed with the primary antibody (HY-P80082, 1/100) for 30 minutes at room temperature. The detection was performed using Polymer HRP-conjugated Goat Anti-Mouse/Rabbit lgG(H&L) secondary antibody (HY-P83652). DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunohistochemical analysis of paraffin-embedded human kidney using Chk1 antibody. The section was pre-treated using heat mediated antigen retrieval with EDTA (pH 9.0) for 14 minutes. The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with TBST, and then probed with the primary antibody (HY-P80082, 1/100) for 30 minutes at room temperature. The detection was performed using Polymer HRP-conjugated Goat Anti-Mouse/Rabbit lgG(H&L) secondary antibody (HY-P83652). DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunohistochemical analysis of paraffin-embedded human tonsil using Chk1 antibody. The section was pre-treated using heat mediated antigen retrieval with EDTA (pH 9.0) for 14 minutes. The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with TBST, and then probed with the primary antibody (HY-P80082, 1/100) for 30 minutes at room temperature. The detection was performed using Polymer HRP-conjugated Goat Anti-Mouse/Rabbit lgG(H&L) secondary antibody (HY-P83652). DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunohistochemical analysis of paraffin-embedded human liver cancer using Chk1 antibody. The section was pre-treated using heat mediated antigen retrieval with EDTA (pH 9.0) for 14 minutes. The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with TBST, and then probed with the primary antibody (HY-P80082, 1/100) for 30 minutes at room temperature. The detection was performed using Polymer HRP-conjugated Goat Anti-Mouse/Rabbit lgG(H&L) secondary antibody (HY-P83652). DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunohistochemical analysis of paraffin-embedded human thyroid cancer using Chk1 antibody. The section was pre-treated using heat mediated antigen retrieval with EDTA (pH 9.0) for 14 minutes. The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with TBST, and then probed with the primary antibody (HY-P80082, 1/100) for 30 minutes at room temperature. The detection was performed using Polymer HRP-conjugated Goat Anti-Mouse/Rabbit lgG(H&L) secondary antibody (HY-P83652). DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunohistochemical analysis of paraffin-embedded human cervical cancer using Chk1 antibody. The section was pre-treated using heat mediated antigen retrieval with EDTA (pH 9.0) for 14 minutes. The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with TBST, and then probed with the primary antibody (HY-P80082, 1/100) for 30 minutes at room temperature. The detection was performed using Polymer HRP-conjugated Goat Anti-Mouse/Rabbit lgG(H&L) secondary antibody (HY-P83652). DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunocytochemistry analysis of HepG2 cells labeling Chk1 with Chk1 Antibody (HY-P80082) at 1:50 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with quick block buffer for 10 minutes at room temperature. Cells were then incubated with Chk1 Antibody (HY-P80082) at 1:50 dilution in quick block buffer overnight at 4 ℃. AF488-conjugated Goat Anti-Rabbit IgG H&L（HY-P8002, Green） was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).
Immunocytochemistry analysis of HepG2 cells labeling Chk1 with Chk1 Antibody (HY-P80082) at 1:200 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with quick block buffer for 10 minutes at room temperature. Cells were then incubated with Chk1 Antibody (HY-P80082) at 1:200 dilution in quick block buffer overnight at 4 ℃. AF488-conjugated Goat Anti-Rabbit IgG H&L（HY-P8002, Green） was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).

Background

Function：Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA (PubMed:11535615, PubMed:12399544, PubMed:12446774, PubMed:14559997, PubMed:14988723, PubMed:15311285, PubMed:15650047, PubMed:15665856, PubMed:32357935). May also negatively regulate cell cycle progression during unperturbed cell cycles (PubMed:11535615, PubMed:12399544, PubMed:12446774, PubMed:14559997, PubMed:14988723, PubMed:15311285, PubMed:15650047, PubMed:15665856). This regulation is achieved by a number of mechanisms that together help to preserve the integrity of the genome (PubMed:11535615, PubMed:12399544, PubMed:12446774, PubMed:14559997, PubMed:14988723, PubMed:15311285, PubMed:15650047, PubMed:15665856). Recognizes the substrate consensus sequence [R-X-X-S/T] (PubMed:11535615, PubMed:12399544, PubMed:12446774, PubMed:14559997, PubMed:14988723, PubMed:15311285, PubMed:15650047, PubMed:15665856). Binds to and phosphorylates CDC25A, CDC25B and CDC25C (PubMed:12676583, PubMed:12676925, PubMed:12759351, PubMed:14559997, PubMed:14681206, PubMed:19734889, PubMed:9278511). Phosphorylation of CDC25A at 'Ser-178' and 'Thr-507' and phosphorylation of CDC25C at 'Ser-216' creates binding sites for 14-3-3 proteins which inhibit CDC25A and CDC25C (PubMed:9278511). Phosphorylation of CDC25A at 'Ser-76', 'Ser-124', 'Ser-178', 'Ser-279' and 'Ser-293' promotes proteolysis of CDC25A (PubMed:12676583, PubMed:12676925, PubMed:12759351, PubMed:14681206, PubMed:19734889, PubMed:9278511). Phosphorylation of CDC25A at 'Ser-76' primes the protein for subsequent phosphorylation at 'Ser-79', 'Ser-82' and 'Ser-88' by NEK11, which is required for polyubiquitination and degradation of CDCD25A (PubMed:19734889, PubMed:20090422, PubMed:9278511). Inhibition of CDC25 leads to increased inhibitory tyrosine phosphorylation of CDK-cyclin complexes and blocks cell cycle progression (PubMed:9278511). Also phosphorylates NEK6 (PubMed:18728393). Binds to and phosphorylates RAD51 at 'Thr-309', which promotes the release of RAD51 from BRCA2 and enhances the association of RAD51 with chromatin, thereby promoting DNA repair by homologous recombination (PubMed:15665856). Phosphorylates multiple sites within the C-terminus of TP53, which promotes activation of TP53 by acetylation and promotes cell cycle arrest and suppression of cellular proliferation (PubMed:10673501, PubMed:15659650, PubMed:16511572). Also promotes repair of DNA cross-links through phosphorylation of FANCE (PubMed:17296736). Binds to and phosphorylates TLK1 at 'Ser-743', which prevents the TLK1-dependent phosphorylation of the chromatin assembly factor ASF1A (PubMed:12660173, PubMed:12955071). This may enhance chromatin assembly both in the presence or absence of DNA damage (PubMed:12660173, PubMed:12955071). May also play a role in replication fork maintenance through regulation of PCNA (PubMed:18451105). May regulate the transcription of genes that regulate cell-cycle progression through the phosphorylation of histones (By similarity). Phosphorylates histone H3.1 (to form H3T11ph), which leads to epigenetic inhibition of a subset of genes (By similarity). May also phosphorylate RB1 to promote its interaction with the E2F family of transcription factors and subsequent cell cycle arrest (PubMed:17380128). Phosphorylates SPRTN, promoting SPRTN recruitment to chromatin (PubMed:31316063). Reduces replication stress and activates the G2/M checkpoint, by phosphorylating and inactivating PABIR1/FAM122A and promoting the serine/threonine-protein phosphatase 2A-mediated dephosphorylation and stabilization of WEE1 levels and activity (PubMed:33108758); Endogenous repressor of isoform 1, interacts with, and antagonizes CHK1 to promote the S to G2/M phase transition

Subcellular Localization：Nucleus; Chromosome; Cytoplasm; Cytoplasm, cytoskeleton, microtubule organizing center, centrosome

Expression：
Tissue_specificity:This gene is widely expressed in various tissues, with the highest expression in the thymus, testes, small intestine, and colon.

Subunit：Interacts (phosphorylated by ATR) with RAD51 (PubMed:15665856). Interacts with and phosphorylates CLSPN, an adapter protein that regulates the ATR-dependent phosphorylation of CHEK1 (PubMed:16963448). Interacts with BRCA1 (PubMed:11836499). Interacts with and phosphorylates CDC25A, CDC25B and CDC25C (PubMed:9278511). Interacts with FBXO6, which regulates CHEK1 (PubMed:19716789). Interacts with PPM1D, which regulates CHEK1 through dephosphorylation (PubMed:15870257). Interacts with TIMELESS; DNA damage-dependent (PubMed:15798197). Interacts with FEM1B; activates CHEK1 in response to stress (PubMed:19330022). Interacts with TLK1 (PubMed:12660173). Interacts with XPO1 and YWHAZ (PubMed:12676962). Interacts with CDK5RAP3; antagonizes CHEK1 (PubMed:19223857)

RRID

AB_3102294

Database

Entrez Gene: 1111 Human ; 12649 Mouse ;

SwissProt: O14757 Human ; O35280 Mouse ;

OMIM: 620610 Human

Research Field

Epigenetics and Nuclear Signaling

Documentation

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Data Sheet (235 KB) SDS (251 KB)

COA (205 KB)

User Guide for Antibodies (1077 KB)

Chk1 Antibody (YA505) Related Classifications

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Chk1 Antibody (YA505)

Chk1 Antibody (YA505) Featured Recommendations:

1 Publications Citing Use of MCE Chk1 Antibody (YA505)

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Chk1 Antibody (YA505) Related Classifications

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