JavaScript is disabled in your browser. Please enable JavaScript to view this website.
AB265614

Human COL4A4 (Collagen alpha-4(IV) chain) knockout HeLa cell line

Be the first to review this product! Submit a review

|

(0 Publication)

COL4A4 KO cell line available to order. KO validated by. Free of charge wild type control provided. Knockout achieved by using CRISPR/Cas9, 1 bp deletion in exon 29 and 2 bp insertion in exon 29.

View Alternative Names

CO4A4_HUMAN, COL4A4, Collagen alpha-4(IV) chain

2 Images
Sanger Sequencing - Human COL4A4 (Collagen alpha-4(IV) chain) knockout HeLa cell line (AB265614)
  • Sanger seq

Unknown

Sanger Sequencing - Human COL4A4 (Collagen alpha-4(IV) chain) knockout HeLa cell line (AB265614)

Allele-2 : 2 bp insertion in exon 29.

Sanger Sequencing - Human COL4A4 (Collagen alpha-4(IV) chain) knockout HeLa cell line (AB265614)
  • Sanger seq

Unknown

Sanger Sequencing - Human COL4A4 (Collagen alpha-4(IV) chain) knockout HeLa cell line (AB265614)

Allele-1 : 1 bp deletion in exon 29.

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, 1 bp deletion in exon 29 and 2 bp insertion in exon 29

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?

{ "values": { "1000000Cellsvial": { "sellingSize": "1000000 Cells/vial", "publicAssetCode":"ab265614-1000000Cells_vial", "assetComponentDetails": [ { "size":"1 x 1000000 Cells/vial", "name":"ab265614 Human COL4A4 (Collagen alpha-4(IV) chain) knockout HeLa cell line", "number":"AB265614-CMP01" } ] }, "1000000Cellsvial": { "sellingSize": "1000000 Cells/vial", "publicAssetCode":"ab265614-1000000Cells_vial", "assetComponentDetails": [ { "size":"1 x 1000000 Cells/vial", "name":"ab265614 Human COL4A4 (Collagen alpha-4(IV) chain) knockout HeLa cell line", "number":"AB265614-CMP01", "productcode":"" } ] } } }

Properties and storage information

Gene name
COL4A4
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.

The Collagen alpha-4(IV) chain often referred to as COL4A4 is a component of type IV collagen. This protein plays a mechanical role by forming a network in the basement membranes which are thin sheets of specialized extracellular matrix materials. It possesses a significant molecular mass of approximately 185 kDa. COL4A4 is mainly expressed in tissues such as the kidney cochlea and ocular structures where it integrates with other collagen chains to provide structural support and stability.
Biological function summary

The Collagen alpha-4(IV) chain contributes to the integrity and function of basement membranes. It forms a heterotrimeric complex with other alpha chains specifically with COL4A3 and COL4A5 which together are essential for maintaining the filtration barrier in the glomeruli of kidneys. This complex also plays roles in hearing and maintaining visual function. The structural rigidity and filtration properties provided by these collagen chains are vital for the proper functioning of these tissues.

Pathways

The Collagen alpha-4(IV) chain is significantly involved in the basement membrane organization pathway. It interacts closely with other collagens and cell surface receptors to mediate cell adhesion migration and signaling processes. Within the same pathway proteins such as laminins and integrins work similarly to ensure the stability and communication between cells and the extracellular matrix. Through these interactions the COL4A4 chain ensures proper tissue organization and cellular responses to environmental changes.

COL4A4 mutations relate to Alport syndrome and thin basement membrane nephropathy. Alport syndrome is a genetic disorder characterized by kidney disease hearing loss and ocular abnormalities resulting from defects in the collagen type IV structure. In this context the COL4A4 chain interacts with COL4A3 and COL4A5 and mutations in any of these chains disrupt the collagen network causing the disease symptoms. Understanding these associations aids in diagnosing and devising potential therapeutic strategies for these disorders.

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

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.
For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com