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About This Item
Empirical Formula (Hill Notation):
C21H22N2O4S
CAS Number:
Molecular Weight:
398.48
UNSPSC Code:
12352200
NACRES:
NA.77
Product Name
KL001, ≥98% (HPLC)
SMILES string
[S](=O)(=O)(N(CC(O)C[n]2c3c(c4c2cccc4)cccc3)Cc1[o]ccc1)C
InChI
1S/C21H22N2O4S/c1-28(25,26)22(15-17-7-6-12-27-17)13-16(24)14-23-20-10-4-2-8-18(20)19-9-3-5-11-21(19)23/h2-12,16,24H,13-15H2,1H3
InChI key
OQAFDLPAPSSOHY-UHFFFAOYSA-N
assay
≥98% (HPLC)
form
powder
color
white to beige
solubility
DMSO: 20 mg/mL, clear
storage temp.
2-8°C
Quality Level
Related Categories
Biochem/physiol Actions
KL001 stabilizes cryptochrome (CRY), preventing ubiquitin-dependent degradation.
KL001 stabilizes cryptochrome (CRY), preventing ubiquitin-dependent degradation. CRY proteins are part of a feedback loop, acting as transcription repressors to inhibit CLOCK-BMAL1 components of the circadian clock. KL001 stabilization of CRY proteins results in lengthening of the circadian period, and also inhibited glucagon-induced gluconeogenesis in primary hepatocytes. Other compounds affecting circadian rhythms include Casein kinase I (CKI) inhibitors such as longdaysin (Sigma Prod. No. SML0127) and synthetic ligands for the nuclear receptors REV-ERB such as SR8278 (Sigma Prod. No. S9576), but KL001 appears to be the first small molecule that specifically acts on CRY proteins.
Features and Benefits
This compound is a featured product for Gene Regulation research. Click here to discover more featured Gene Regulation products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Alfred G Tamayo et al.
FEBS open bio, 10(9), 1868-1879 (2020-07-28)
Transcriptional dynamics of cancer cells govern cell fate decisions and are therapeutically actionable drug targets. In this study, we engineered a circulating cancer cell line that secretes a luciferase reporter to capture constitutive and circadian clock-driven transcription dynamics over the
Abdelhalim Azzi et al.
iScience, 26(8), 107449-107449 (2023-08-18)
Circadian clock controls daily behavior and physiology. The activity of various signaling pathways affects clock gene expression. Here, we show that the core circadian clock gene CRY1 is a direct target of the Hippo pathway effector YAP. YAP binds to
M Abdulhadi Alagha et al.
Cartilage, 13(2_suppl), 53S-67S (2020-02-16)
Circadian rhythms in cartilage homeostasis are hypothesized to temporally segregate and synchronize the activities of chondrocytes to different times of the day, and thus may provide an efficient mechanism by which articular cartilage can recover following physical activity. While the
Xiaodong Zhuang et al.
iScience, 24(10), 103144-103144 (2021-09-22)
The coronavirus disease 2019 pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) coronavirus, is a global health issue with unprecedented challenges for public health. SARS-CoV-2 primarily infects cells of the respiratory tract via spike glycoprotein binding to angiotensin-converting
Ayesha A Shafi et al.
Nature communications, 12(1), 401-401 (2021-01-17)
Mechanisms regulating DNA repair processes remain incompletely defined. Here, the circadian factor CRY1, an evolutionally conserved transcriptional coregulator, is identified as a tumor specific regulator of DNA repair. Key findings demonstrate that CRY1 expression is androgen-responsive and associates with poor
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