Anti-CHK2, clone 7

Species Reactivity	Key Applications	Host	Format	Antibody Type
H, M	WB, IP, ICC	M	Purified	Monoclonal Antibody

Species Reactivity

Key Applications

Host

Format

Antibody Type

H, M

WB, IP, ICC

Purified

Monoclonal Antibody

Description
Catalogue Number	05-649
Replaces	MABE491
Brand Family	Upstate
Trade Name	Upstate
Description	Anti-Chk2 Antibody, clone 7
Alternate Names	CHK2 (checkpoint, S.pombe) homolog CHK2 checkpoint homolog (S. pombe) checkpoint-like protein CHK2 protein kinase CHK2 serine/threonine-protein kinase CHK2
Background Information	The p53 tumor-suppressor gene integrates numerous signals that control cell life and death. Several novel molecules involved in p53 signaling, including Chk2, p53R2, p53AIP1, Noxa, PIDD, and PID/MTA2, were recently discovered. The checkpoint kinase Chk2 is the mammalian homologue of yeast Cds1/Rad53. In response to DNA damage, the checkpoint kinase ATM phosphorylates and activates Chk2, which in turn directly phosphorylates and activates p53. Chk2 serves as ATM downstream effector to mediate activation of p53. Chk2 also phosphorylates and activates BRCA1, the product of a tumor suppressor gene that is mutated in breast and ovarian cancer.

Description

Catalogue Number

05-649

Replaces

MABE491

Brand Family

Upstate

Trade Name

Upstate

Description

Anti-Chk2 Antibody, clone 7

Alternate Names

CHK2 (checkpoint, S.pombe) homolog
CHK2 checkpoint homolog (S. pombe)
checkpoint-like protein CHK2
protein kinase CHK2
serine/threonine-protein kinase CHK2

Background Information

The p53 tumor-suppressor gene integrates numerous signals that control cell life and death. Several novel molecules involved in p53 signaling, including Chk2, p53R2, p53AIP1, Noxa, PIDD, and PID/MTA2, were recently discovered. The checkpoint kinase Chk2 is the mammalian homologue of yeast Cds1/Rad53. In response to DNA damage, the checkpoint kinase ATM phosphorylates and activates Chk2, which in turn directly phosphorylates and activates p53. Chk2 serves as ATM downstream effector to mediate activation of p53. Chk2 also phosphorylates and activates BRCA1, the product of a tumor suppressor gene that is mutated in breast and ovarian cancer.

Product Information
Format	Purified
Control	Jurkat cell lysate, HeLa cell lysate Included Positive Antigen Control: Catalog # 12-303, Jurkat Cell Lysate. Add 2.5 μL of 2-mercaptoethanol/100 μL of lysate and boil for 5 minutes to reduce the preparation. Load 20 μg of reduced lysate per lane for minigels.
Presentation	Protein G purified mouse IgG1 buffer containing 0.07 M Tris-glycine, pH 7.4, 0.105 M NaCl, 0.035% sodium azide and 30% glycerol. Liquid at -20°C.

Product Information

Format

Purified

Control

Jurkat cell lysate, HeLa cell lysate
Included Positive Antigen Control: Catalog # 12-303, Jurkat Cell Lysate. Add 2.5 μL of 2-mercaptoethanol/100 μL of lysate and boil for 5 minutes to reduce the preparation. Load 20 μg of reduced lysate per lane for minigels.

Presentation

Protein G purified mouse IgG1 buffer containing 0.07 M Tris-glycine, pH 7.4, 0.105 M NaCl, 0.035% sodium azide and 30% glycerol. Liquid at -20°C.

Applications
Application	Anti-Chk2 Antibody, clone 7 is a mouse monoclonal antibody for detection of Chk2 also known as CHK2 checkpoint homolog (S. pombe), serine/threonine-protein kinase CHK2 & has been validated in WB, IP, ICC.
Key Applications	Western Blotting Immunoprecipitation Immunocytochemistry
Application Notes	Immunoprecipitation: A previous lot of this antibody has been reported by an independent laboratory to immunoprecipitate Chk2 from HeLa cells. Immunocytochemistry: A previous lot of this antibody has been reported by an independent laboratory to detect Chk2 in HeLa cells.

Applications

Application

Anti-Chk2 Antibody, clone 7 is a mouse monoclonal antibody for detection of Chk2 also known as CHK2 checkpoint homolog (S. pombe), serine/threonine-protein kinase CHK2 & has been validated in WB, IP, ICC.

Key Applications

Western Blotting
Immunoprecipitation
Immunocytochemistry

Application Notes

Immunoprecipitation: A previous lot of this antibody has been reported by an independent laboratory to immunoprecipitate Chk2 from HeLa cells.

Immunocytochemistry: A previous lot of this antibody has been reported by an independent laboratory to detect Chk2 in HeLa cells.

Biological Information
Immunogen	Mixture of two GST fusion proteins corresponding to residues 1-223 and 217-543 of human Chk2
Clone	clone 7
Concentration	Please refer to the Certificate of Analysis for the lot-specific concentration.
Host	Mouse
Specificity	Chk2
Isotype	IgG1
Species Reactivity	Human Mouse
Species Reactivity Note	Human and mouse. Others not tested. Predicted to cross-react with rat based on sequence homology.
Antibody Type	Monoclonal Antibody
Entrez Gene Number	NP_001005735
Entrez Gene Summary	In response to DNA damage and replication blocks, cell cycle progression is halted through the control of critical cell cycle regulators. The protein encoded by this gene is a cell cycle checkpoint regulator and putative tumor suppressor. It contains a forkhead-associated protein interaction domain essential for activation in response to DNA damage and is rapidly phosphorylated in response to replication blocks and DNA damage. When activated, the encoded protein is known to inhibit CDC25C phosphatase, preventing entry into mitosis, and has been shown to stabilize the tumor suppressor protein p53, leading to cell cycle arrest in G1. In addition, this protein interacts with and phosphorylates BRCA1, allowing BRCA1 to restore survival after DNA damage. Mutations in this gene have been linked with Li-Fraumeni syndrome, a highly penetrant familial cancer phenotype usually associated with inherited mutations in TP53. Also, mutations in this gene are thought to confer a predisposition to sarcomas, breast cancer, and brain tumors. This nuclear protein is a member of the CDS1 subfamily of serine/threonine protein kinases. Three transcript variants encoding different isoforms have been found for this gene.
Gene Symbol	CHEK2 HuCds1 CHK2 LFS2 RAD53 bA444G7 CDS1 OTTHUMP00000028871 PP1425 Cds1
Purification Method	Protein G Chromatography
UniProt Number	O96017
UniProt Summary	FUNCTION: SwissProt: O96017 # Regulates cell cycle checkpoints and apoptosis in response to DNA damage, particularly to DNA double-strand breaks. Inhibits CDC25C phosphatase by phosphorylation on 'Ser-216', preventing the entry into mitosis. May also play a role in meiosis. Regulates the TP53 tumor suppressor through phosphorylation at 'Thr-18' and 'Ser-20'. COFACTOR: Magnesium. SIZE: 543 amino acids; 60915 Da SUBCELLULAR LOCATION: Isoform 2: Nucleus. Note=Isoform 10 is present throughout the cell. & Isoform 4: Nucleus. & Isoform 7: Nucleus. & Isoform 9: Nucleus. & Isoform 12: Nucleus. TISSUE SPECIFICITY: High expression is found in testis, spleen, colon and peripheral blood leukocytes. Low expression is found in other tissues. DISEASE: SwissProt: O96017 # Defects in CHEK2 are associated with Li-Fraumeni syndrome 2 (LFS2) [MIM:609265]; a highly penetrant familial cancer phenotype usually associated with inherited mutations in p53/TP53. & Defects in CHEK2 are found in some patients with prostate cancer (CaP) [MIM:176807]. & Defects in CHEK2 are found in some patients with osteosarcoma (OSRC) [MIM:259500]. SIMILARITY: SwissProt: O96017 ## Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. CHK2 subfamily. & Contains 1 FHA domain. & Contains 1 protein kinase domain.
Molecular Weight	67 kDa

Biological Information

Immunogen

Mixture of two GST fusion proteins corresponding to residues 1-223 and 217-543 of human Chk2

Clone

clone 7

Concentration

Please refer to the Certificate of Analysis for the lot-specific concentration.

Host

Mouse

Specificity

Chk2

Isotype

IgG1

Species Reactivity

Human
Mouse

Species Reactivity Note

Human and mouse. Others not tested. Predicted to cross-react with rat based on sequence homology.

Antibody Type

Monoclonal Antibody

Entrez Gene Number

NP_001005735

Entrez Gene Summary

In response to DNA damage and replication blocks, cell cycle progression is halted through the control of critical cell cycle regulators. The protein encoded by this gene is a cell cycle checkpoint regulator and putative tumor suppressor. It contains a forkhead-associated protein interaction domain essential for activation in response to DNA damage and is rapidly phosphorylated in response to replication blocks and DNA damage. When activated, the encoded protein is known to inhibit CDC25C phosphatase, preventing entry into mitosis, and has been shown to stabilize the tumor suppressor protein p53, leading to cell cycle arrest in G1. In addition, this protein interacts with and phosphorylates BRCA1, allowing BRCA1 to restore survival after DNA damage. Mutations in this gene have been linked with Li-Fraumeni syndrome, a highly penetrant familial cancer phenotype usually associated with inherited mutations in TP53. Also, mutations in this gene are thought to confer a predisposition to sarcomas, breast cancer, and brain tumors. This nuclear protein is a member of the CDS1 subfamily of serine/threonine protein kinases. Three transcript variants encoding different isoforms have been found for this gene.

Gene Symbol

CHEK2
HuCds1
CHK2
LFS2
RAD53
bA444G7
CDS1
OTTHUMP00000028871
PP1425
Cds1

Purification Method

Protein G Chromatography

UniProt Number

O96017

UniProt Summary

FUNCTION: SwissProt: O96017 # Regulates cell cycle checkpoints and apoptosis in response to DNA damage, particularly to DNA double-strand breaks. Inhibits CDC25C phosphatase by phosphorylation on 'Ser-216', preventing the entry into mitosis. May also play a role in meiosis. Regulates the TP53 tumor suppressor through phosphorylation at 'Thr-18' and 'Ser-20'.
COFACTOR: Magnesium.
SIZE: 543 amino acids; 60915 Da
SUBCELLULAR LOCATION: Isoform 2: Nucleus. Note=Isoform 10 is present throughout the cell. & Isoform 4: Nucleus. & Isoform 7: Nucleus. & Isoform 9: Nucleus. & Isoform 12: Nucleus.
TISSUE SPECIFICITY: High expression is found in testis, spleen, colon and peripheral blood leukocytes. Low expression is found in other tissues.
DISEASE: SwissProt: O96017 # Defects in CHEK2 are associated with Li-Fraumeni syndrome 2 (LFS2) [MIM:609265]; a highly penetrant familial cancer phenotype usually associated with inherited mutations in p53/TP53. & Defects in CHEK2 are found in some patients with prostate cancer (CaP) [MIM:176807]. & Defects in CHEK2 are found in some patients with osteosarcoma (OSRC) [MIM:259500].
SIMILARITY: SwissProt: O96017 ## Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. CHK2 subfamily. & Contains 1 FHA domain. & Contains 1 protein kinase domain.

Molecular Weight

67 kDa

Product Usage Statements
Quality Assurance	Routinely evaluated by western blot on RIPA lysates from Jurkat cells, HeLa, 3T3/A31, or A431 cells. Western Blot Analysis: 0.1-1 μg/mL of this lot detected Chk2 in RIPA lysates from Jurkat cells. A previous lot detected Chk2 in lysates from HeLa, 3T3/A31, and A431 cells.
Usage Statement	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.

Product Usage Statements

Quality Assurance

Routinely evaluated by western blot on RIPA lysates from Jurkat cells, HeLa, 3T3/A31, or A431 cells.

Western Blot Analysis: 0.1-1 μg/mL of this lot detected Chk2 in RIPA lysates from Jurkat cells. A previous lot detected Chk2 in lysates from HeLa, 3T3/A31, and A431 cells.

Usage Statement

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.

Storage and Shipping Information
Storage Conditions	Stable for 1 year at from date of receipt.

Storage and Shipping Information

Storage Conditions

Stable for 1 year at from date of receipt.

Packaging Information
Material Size	200 µg

Packaging Information

Material Size

200 µg

实验耗材

分子生物学试剂

蛋白与免疫学

生化试剂

细胞及检测试剂

色谱及层析

仪器设备

实验服务

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