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AB265787

Human SQLE (Squalene Epoxidase) knockout HeLa cell line

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SQLE KO cell line available to order. KO validated by. Free of charge wild type control provided. Knockout achieved by using CRISPR/Cas9, 5 bp deletion in exon 1 and Insertion of the selection cassette in exon 1.

View Alternative Names

ERG1_HUMAN, SE, SQLE, Squalene epoxidase, Squalene monooxygenase

2 Images
Sanger Sequencing - Human SQLE (Squalene Epoxidase) knockout HeLa cell line (AB265787)
  • Sanger seq

Unknown

Sanger Sequencing - Human SQLE (Squalene Epoxidase) knockout HeLa cell line (AB265787)

Allele-1 : 5 bp deletion in exon 1.

Sanger Sequencing - Human SQLE (Squalene Epoxidase) knockout HeLa cell line (AB265787)
  • Sanger seq

Unknown

Sanger Sequencing - Human SQLE (Squalene Epoxidase) knockout HeLa cell line (AB265787)

Allele-2 : Insertion of the selection cassette in exon 1.

Key facts

Cell type

HeLa

Species or organism

Human

Tissue

Cervix

Form

Liquid

form

Knockout validation

Sanger Sequencing

Mutation description

Knockout achieved by using CRISPR/Cas9, 5 bp deletion in exon 1 and Insertion of the selection cassette in exon 1

Disease

Adenocarcinoma

Product details

Recommended control: Human wild-type HeLa cell line (ab255928). Please note a wild-type cell line is not automatically included with a knockout cell line order, if required please add recommended wild-type cell line at no additional cost using the code WILDTYPE-TMTK1.

We will provide viable cells that proliferate on revival.

This product is subject to limited use licenses from The Broad Institute, ERS Genomics Limited and Sigma-Aldrich Co. LLC, and is developed with patented technology. For full details of the licenses and patents please refer to our limited use license and patent pages.

What's included?

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Properties and storage information

Gene name
SQLE
Gene editing type
Knockout
Gene editing method
CRISPR technology
Knockout validation
Sanger Sequencing
Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
-196°C
Appropriate long-term storage conditions
-196°C

Handling procedures

Initial handling guidelines

Upon arrival, the vial should be stored in liquid nitrogen vapor phase and not at -80°C. Storage at -80°C may result in loss of viability.

1. Thaw the vial in 37°C water bath for approximately 1-2 minutes.
2. Transfer the cell suspension (0.8 mL) to a 15 mL/50 mL conical sterile polypropylene centrifuge tube containing 8.4 mL pre-warmed culture medium, wash vial with an additional 0.8 mL culture medium (total volume 10 mL) to collect remaining cells, and centrifuge at 201 x g (rcf) for 5 minutes at room temperature. 10 mL represents minimum recommended dilution. 20 mL represents maximum recommended dilution.
3. Resuspend the cell pellet in 5 mL pre-warmed culture medium and count using a haemocytometer or alternative cell counting method seed all remaining cells into a T25.
4. Incubate the culture at 37°C incubator with 5% CO2. Check the culture one day after revival and continue to check until 80% confluent. Media change can be given if needed.
5. Once confluent passage into an appropriate flask at a density of 2x104 cells/cm2. Seeding density is given as a guide only and should be scaled to align with individual lab schedules. Cultures should be monitored daily.

Subculture guidelines
  • All seeding densities should be based on cell counts gained by established methods.
  • A guide seeding density of 2x104 cells/cm2 is recommended.
  • Cells should be passaged when they have achieved 80-90% confluence.
Culture medium

DMEM (High Glucose) + 10% FBS

Cryopreservation medium

Cell Freezing Medium-DMSO Serum free media, contains 8.7% DMSO in MEM supplemented with methyl cellulose.

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Squalene epoxidase also called squalene monooxygenase is an essential enzyme in cholesterol biosynthesis. It converts squalene into 23-oxidosqualene through an epoxidation reaction involving the addition of an oxygen atom into the squalene molecule. The enzyme has an estimated mass of about 64 kDa and is primarily expressed in the liver where cholesterol synthesis is highly active. Its activity leads to the production of sterol intermediates which are further processed to form cholesterol and other sterols.
Biological function summary

Squalene epoxidase plays an important role in maintaining sterol homeostasis by regulating the conversion of squalene an important precursor in the cholesterol synthesis pathway. This enzyme operates as a part of the endoplasmic reticulum membrane complex where it anchors and acts on substrates to produce sterol intermediates for further enzymatic actions. Its function is tightly regulated by intracellular cholesterol levels to prevent overproduction and maintain cell membrane integrity.

Pathways

Squalene epoxidase is an important component of the mevalonate pathway a fundamental route for the synthesis of cholesterol and other isoprenoids. Besides cholesterol biosynthesis it connects to the synthesis of steroid hormones and bile acids. Farnesyl pyrophosphate another key intermediate in the mevalonate pathway influences the activity of squalene epoxidase. Moreover this enzyme cooperates with subsequent enzymes like lanosterol synthase to facilitate the continuation of sterol biosynthesis.

Dysregulation of squalene epoxidase can lead to conditions such as hypercholesterolemia which is associated with elevated cholesterol levels and cardiovascular disease. This enzyme's malfunction is also implicated in certain dermatological disorders due to disrupted sterol metabolism affecting skin barrier function. Alterations in squalene epoxidase activity can influence the expression and function of other proteins like HMG-CoA reductase which is tightly regulated by feedback mechanisms in response to intracellular cholesterol levels.

Quality control

STR analysis

CSF1PO, D13S317, D7S820, D5S818, TH01, D16S539, TPOX

Cell culture

Biosafety level

EU: 2 US: 2

Adherent/suspension

Adherent

Gender

Female

Product protocols

Product promise

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