Human B2M (beta 2 Microglobulin) knockout Hep G2 cell line (ab262325)
Overview
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Product name
Human B2M (beta 2 Microglobulin) knockout Hep G2 cell line
See all beta 2 Microglobulin lysates -
Parental Cell Line
HepG2 -
Organism
Human -
Mutation description
Knockout achieved by using CRISPR/Cas9, 1 bp insertion in exon 1 and Insertion of the selection cassette in exon 1 -
Passage number
<20 -
Knockout validation
Sanger Sequencing, Western Blot (WB) -
Tested applications
Suitable for: WBmore details -
Biosafety level
1 -
General notes
Recommended control: Human wild-type HepG2 cell line (ab257304). 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.
Cryopreservation cell medium: Cell Freezing Medium-DMSO Serum free media, contains 8.7% DMSO in MEM supplemented with methyl cellulose.
Culture medium: MEM + 10% FBS
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. Based on cell count, seed cells in an appropriate cell culture 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.
4. Incubate the culture at 37°C incubator with 5% CO2. 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.
- A partial media change 24 hours prior to subculture may be helpful to encourage growth, if required.
- Cells should be passaged when they have achieved 80-90% confluence.
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.
We will provide viable cells that proliferate on revival.
Properties
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Number of cells
1 x 106 cells/vial, 1 mL -
Adherent /Suspension
Adherent -
Tissue
Liver -
Cell type
epithelial -
Disease
Hepatocellular Carcinoma -
Gender
Male -
Mycoplasma free
Yes -
Storage instructions
Shipped on Dry Ice. Store in liquid nitrogen. -
Storage buffer
Constituents: 8.7% Dimethylsulfoxide, 2% Cellulose, methyl ether -
Research areas
Target
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Function
Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system. -
Involvement in disease
Defects in B2M are the cause of hypercatabolic hypoproteinemia (HYCATHYP) [MIM:241600]. Affected individuals show marked reduction in serum concentrations of immunoglobulin and albumin, probably due to rapid degradation.
Note=Beta-2-microglobulin may adopt the fibrillar configuration of amyloid in certain pathologic states. The capacity to assemble into amyloid fibrils is concentration dependent. Persistently high beta(2)-microglobulin serum levels lead to amyloidosis in patients on long-term hemodialysis. -
Sequence similarities
Belongs to the beta-2-microglobulin family.
Contains 1 Ig-like C1-type (immunoglobulin-like) domain. -
Post-translational
modificationsGlycation of Ile-21 is observed in long-term hemodialysis patients. -
Cellular localization
Secreted. Detected in serum and urine. - Information by UniProt
Associated products
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KO cell lysates
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Related Products
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab262325 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Application | Abreviews | Notes |
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WB |
Use at an assay dependent concentration. Predicted molecular weight: 14 kDa.
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Notes |
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WB
Use at an assay dependent concentration. Predicted molecular weight: 14 kDa. |
Images
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All lanes : Anti-beta 2 Microglobulin antibody [EP2978Y] (ab75853) at 1/1000 dilution
Lane 1 : Wild-type HepG2 cell lysate
Lane 2 : B2M knockout HepG2 cell lysate
Lane 3 : HeLa cell lysate
Lane 4 : Jurkat cell lysate
Lysates/proteins at 20 µg per lane.
Secondary
All lanes : Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) at 1/10000 dilution
Predicted band size: 14 kDa
Observed band size: 14 kDaLanes 1-4: Merged signal (red and green). Green - ab75853 observed at 14 kDa. Red - loading control ab8245 observed at 36 kDa.
ab75853 Anti-beta 2 Microglobulin antibody [EP2978Y] was shown to specifically react with beta 2 Microglobulin in wild-type HepG2 cells. Loss of signal was observed when knockout cell line ab262325 (knockout cell lysate ab256846) was used. Wild-type and beta 2 Microglobulin knockout samples were subjected to SDS-PAGE. ab75853 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4°C at 1 in 1000 dilution and 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
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All lanes : Anti-beta 2 Microglobulin antibody [EPR21752-214] (ab218230) at 1/500 dilution
Lane 1 : Wild-type HepG2 cell lysate
Lane 2 : B2M knockout HepG2 cell lysate
Lane 3 : HeLa cell lysate
Lane 4 : Jurkat cell lysate
Lysates/proteins at 20 µg per lane.
Secondary
All lanes : Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) at 1/10000 dilution
Predicted band size: 14 kDa
Observed band size: 14 kDaLanes 1-4: Merged signal (red and green). Green - ab218230 observed at 14 kDa. Red - loading control ab8245 observed at 36 kDa.
ab218230 Anti-beta 2 Microglobulin antibody [EPR21752-214] was shown to specifically react with beta 2 Microglobulin in wild-type HepG2 cells. Loss of signal was observed when knockout cell line ab262325 (knockout cell lysate ab256846) was used. Wild-type and beta 2 Microglobulin knockout samples were subjected to SDS-PAGE. ab218230 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4°C at 1 in 500 dilution and 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
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Allele-1: 1 bp insertion in exon1
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Allele-2: Insertion of the selection cassette in exon 1.
Protocols
Datasheets and documents
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SDS download
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Datasheet download
References (0)
ab262325 has not yet been referenced specifically in any publications.