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AB277160

Human CD22 knockout Raji cell line

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CD22 KO cell line available to order. KO validated by Next Generation Sequencing. Free of charge wild type control provided. Knockout achieved by CRISPR/Cas9 X = 2 bp deletion Frameshift: 100%.

View Alternative Names

B cell receptor CD22 precursor, B-cell receptor CD22, B-lymphocyte cell adhesion molecule, BL-CAM, CD22 antigen, CD22 molecule, CD22 protein, CD22_HUMAN, Lectin 2, Leu14, Lyb8, MGC130020, Sialic acid binding immunoglobulin like lectin 2, Sialic acid-binding Ig-like lectin 2, Siglec-2, T-cell surface antigen Leu-14

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Next Generation Sequencing - Human CD22 knockout Raji cell line (AB277160)
  • NGS

Supplier Data

Next Generation Sequencing - Human CD22 knockout Raji cell line (AB277160)

Knockout achieved by CRISPR/Cas9; X = 2 bp deletion; Frameshift : 100%

Key facts

Cell type

Raji

Species or organism

Human

Tissue

Lymphatic

Form

Liquid

form

Knockout validation

Next Generation Sequencing

Mutation description

Knockout achieved by CRISPR/Cas9 X = 2 bp deletion Frameshift: 100%

Disease

Lymphoma

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "NGS": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Recommended control: Human wild-type Raji cell line (ab271145). 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 and ERS Genomics Limited, and is developed with patented technology. For full details of the limited use licenses and relevant patents please refer to our limited use license and patent pages.

What's included?

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Properties and storage information

Gene name
CD22
Gene editing type
Knockout
Gene editing method
CRISPR technology
Knockout validation
Next Generation Sequencing
Shipped at conditions
Dry Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
-196°C|-80°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 for bath 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 4x105 - 5x105 cells/mL(for initial passages it is recomended to culture the cells in the higher range of recomended seeding density). 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 4x105 cells/mL is recommended.
  • A maximum of 3x106 viable cells/mL is obtainable.
Culture medium

RPMI + 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.

CD22 also known as Siglec-2 or B-lymphocyte cell adhesion molecule (BL-CAM) is a transmembrane protein with a mass of around 140 kDa. It is selectively expressed on the surface of mature B cells and some immature B cells. This protein plays an important role in the immune system particularly in the regulation of B cell function. CD22 functions by modulating signal transduction processes through its cytoplasmic domain which contains immunoreceptor tyrosine-based inhibitory motifs (ITIMs).
Biological function summary

CD22 acts mainly as a negative regulator of B cell receptor (BCR) signaling. It is part of a complex that interacts with the BCR and other accessory molecules. CD22 helps maintain B cell tolerance by inhibiting overactive signaling and preventing autoimmune responses. By binding to sialic acid-containing glycans CD22 modulates interactions between B cells and other cells aiding in the maintenance of immune homeostasis.

Pathways

CD22 plays a critical role in the BCR signaling pathway and the regulation of phosphatidylinositol 3-kinase (PI3K) signaling. It works together with proteins like CD19 and SHP-1 that are key components of these pathways. By influencing these signaling cascades CD22 contributes to the modulation of B cell activation proliferation and apoptosis ensuring proper functioning of the immune response.

CD22 is associated with autoimmune conditions and hematological malignancies such as hairy cell leukemia (HCL). Therapeutic approaches targeting CD22 such as anti-CD22 antibodies are being explored for treating these diseases. CD22's role in these conditions is connected with proteins involved in the autoimmune pathways or cancer development offering potential therapeutic targets for intervention.

Quality control

STR analysis

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

Cell culture

Biosafety level

EU: 2 US: 2

Adherent/suspension

Suspension

Gender

Male

Product protocols

Product promise

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