CHEK1 sirna

CHEK1 siRNA (Human)

Cat. Num. AAA8216121

• Gene Names: CHEK1; CHK1
• Reactivity: Human
• Applications: RNA Interference (RNAi)
• Purity: > 97%
• Synonyms: CHEK1; CHEK1 siRNA (Human); CHK1; Serine/threonine-protein kinase Chk1; CHK1 checkpoint homolog; Cell cycle checkpoint kinase; Checkpoint kinase-1; CHEK1 sirna

• Host: Synthetic
• Reactivity: Human
• Specificity: CHEK1 siRNA (Human) is a target-specific 19-23 nt siRNA oligo duplexes designed to knock down gene expression.
• Purity/Purification: > 97%
• Form/Format: Lyophilized powder
• Sequence Length: 442

• Applicable Applications for CHEK1 sirna: RNA Interference (RNAi)
• Quality Control: Oligonucleotide synthesis is monitored base by base through trityl analysis to ensure appropriate coupling efficiency. The oligo is subsequently purified by affinity-solid phase extraction. The annealed RNA duplex is further analyzed by mass spectrometry to verify the exact composition of the duplex. Each lot is compared to the previous lot by mass spectrometry to ensure maximum lot-to-lot consistency.
• Directions for Use: We recommends transfection with 100 nM siRNA 48 to 72 hours prior to cell lysis. Before resuspending, briefly centrifuge the tube to ensure the lyophilized siRNA is at the bottom of the tube. Resuspend the siRNA oligos to an appropriate concentration with DEPC water. For each vial, suitable for 250 transfections in 24 well plate (20 pmol for each well).
• Components: We offer pre-designed sets of 3 different target-specific siRNA oligo duplexes of human CHEK1 gene. Each vial contains 5 nmol of lyophilized siRNA. The duplexes can be transfected individually or pooled together to achieve knockdown of the target gene, which is most commonly assessed by qPCR or western blot. Our siRNA oligos are also chemically modified (2'-OMe) at no extra charge for increased stability and enhanced knockdown in vitro and in vivo.
• Preparation and Storage: Shipped at 4 degree C. Store at -20 degree C for one year.

Related Product Information for CHEK1 sirna

siRNA to inhibit CHEK1 expression using RNA interference

NCBI and Uniprot Product Information

• NCBI GI #: 166295194
• NCBI GeneID: 1111
• NCBI Accession #: NP_001107593.1
• NCBI GenBank Nucleotide #: NM_001114121.2
• UniProt Accession #: O14757; A8K934; B4DDD0; B4DSK3; B5BTY6; F5H7S4; H2BI51
• Molecular Weight: 50,415 Da
• NCBI Official Full Name: serine/threonine-protein kinase Chk1 isoform 1
• NCBI Official Synonym Full Names: checkpoint kinase 1
• NCBI Official Symbol: CHEK1
• NCBI Official Synonym Symbols: CHK1
• NCBI Protein Information: serine/threonine-protein kinase Chk1
• UniProt Protein Name: Serine/threonine-protein kinase Chk1
• UniProt Gene Name: CHEK1
• UniProt Synonym Gene Names: CHK1
• UniProt Entry Name: CHK1_HUMAN

NCBI Description

The protein encoded by this gene belongs to the Ser/Thr protein kinase family. It is required for checkpoint mediated cell cycle arrest in response to DNA damage or the presence of unreplicated DNA. This protein acts to integrate signals from ATM and ATR, two cell cycle proteins involved in DNA damage responses, that also associate with chromatin in meiotic prophase I. Phosphorylation of CDC25A protein phosphatase by this protein is required for cells to delay cell cycle progression in response to double-strand DNA breaks. Several alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Oct 2011]

Uniprot Description

Chk1: a protein kinase of the CAMKL family. Required for checkpoint mediated cell cycle arrest in response to DNA damage or the presence of unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. Plays an important role in both S and G2 checkpoints, embryonic development and tumor suppression. Phosphorylated and activated by ATM/ATR following DNA damage, it binds to single-stranded DNA and DNA ends and has a role in the repair of double strand breaks. Activated Chk1 can phosphorylate and inactivate cdc25C via phosphorylation and 14-3-3 binding, blocking the activation of cdc2 and transition into M-phase. Other substrates include p53. Implicated in resistance to apoptosis in response to chemotherapy. Inhibitors under development to chemosensitize tumors. Somatic mutations found in stomach tumors, and in colon and endometrial tumors, where CHK1 may be a target of microsatellite instability. Inhibitors: SB218078, UNC-01.

Protein type: Protein kinase, CAMK; EC 2.7.11.1; Protein kinase, Ser/Thr (non-receptor); Tumor suppressor; Kinase, protein; CAMK group; CAMKL family; CHK1 subfamily

Chromosomal Location of Human Ortholog: 11q24.2

Cellular Component: nucleoplasm; centrosome; extracellular space; chromosome, telomeric region; condensed nuclear chromosome; intracellular membrane-bound organelle; replication fork; cytosol; nucleus; chromatin

Molecular Function: protein serine/threonine kinase activity; protein binding; ATP binding

Biological Process: DNA damage induced protein phosphorylation; chromatin-mediated maintenance of transcription; regulation of mitotic centrosome separation; negative regulation of mitosis; DNA damage checkpoint; peptidyl-threonine phosphorylation; G2/M transition of mitotic cell cycle; DNA repair; G2/M transition DNA damage checkpoint; DNA replication; response to DNA damage stimulus; regulation of cell proliferation