CHKtide (CHK1/CHK2 substrate peptide)

Description
Catalogue Number	12-373
Brand Family	Upstate
Trade Name	Upstate
Description	CHKtide (CHK1/CHK2 substrate peptide)

Description

Catalogue Number

12-373

Brand Family

Upstate

Trade Name

Upstate

Description

CHKtide (CHK1/CHK2 substrate peptide)

Product Information
Presentation	Lyophilized powder

Product Information

Presentation

Lyophilized powder

Applications
Application	CHKtide (CHK1/CHK2 substrate peptide) primarily used in Kinase Assays.
Key Applications	Kinase Assay

Applications

Application

CHKtide (CHK1/CHK2 substrate peptide) primarily used in Kinase Assays.

Key Applications

Kinase Assay

Biological Information
Entrez Gene Number	NM_001274.3
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	CHEK1 CHK1
Protein Target	CHK
Target Sub-Family	CAMK
UniProt Number	O14757 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.

Biological Information

Entrez Gene Number

NM_001274.3

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

CHEK1
CHK1

Protein Target

CHK

Target Sub-Family

CAMK

UniProt Number

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.

Product Usage Statements
Quality Assurance	Routinely evaluated by Protein Kinase Assay as a substrate for the active CHK1 (Catalog #14-346) and CHK2 (Catalog #14-347) kinases.
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 Protein Kinase Assay as a substrate for the active CHK1 (Catalog #14-346) and CHK2 (Catalog #14-347) kinases.

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	Lyophilized: 2 years at 4°C; Rehydrated: 6 months at -20°C.

Storage and Shipping Information

Storage Conditions

Lyophilized: 2 years at 4°C; Rehydrated: 6 months at -20°C.

Packaging Information
Material Size	1 mg

Packaging Information

Material Size

1 mg

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

办公用品

CHKtide (CHK1/CHK2 substrate peptide)

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