radio
SKU PA1018-1
Size 100μg/vial
Reactivity Human
Clonality Polyclonal
Host Rabbit
Ig Isotype N/A
Applications IHC, WB

Overview

Product Name Anti-CD22 Antibody
SKU/Catalog Number PA1018-1
Storage & Handling At -20°C for one year. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for a longer time.Avoid repeated freezing and thawing.
Size 100μg/vial
Description Rabbit IgG polyclonal antibody for B-cell receptor CD22(CD22) detection. Tested with WB, IHC-P in Human.
Cite This Product Anti-CD22 Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA1018-1)
Host Rabbit
Immunogen A synthetic peptide corresponding to a sequence at the C-terminus of human CD22(832-847aa ERPQAQENVDYVILKH).
Reactivity Human

Assay Details

Assay Dilutions Overview

Immunohistochemistry(Paraffin-embedded Section), 0.5-1μg/ml, Human, By Heat
Western blot, 0.1-0.5μg/ml, Human

Boster's Secondary Antibodies And IHC, WB Kits

The following reagents are used to generate the images below.

Boster recommends Enhanced Chemiluminescent Kit with anti-Rabbit IgG (EK1002) for Western blot, and HRP Conjugated anti-Rabbit IgG Super Vision Assay Kit (SV0002-1) for IHC(P).

Images And Assay Conditions

/antibody/pa1018 1 1 WB anti cd22 siglec 2 antibody.jpg

Anti-CD22 antibody, PA1018-1, Western blotting
WB: RAJI Cell Lysate

/antibody/pa1018 1 2 IHC anti cd22 siglec 2 antibody.jpg

Anti-CD22 antibody, PA1018-1, IHC(P)
IHC(P): Human Tonsil Tissue

Target Info

Protein Target Info (Source: Uniprot.org)

Uniprot Id P20273
Gene Name CD22
Protein Name B-cell receptor CD22
Tissue Specificity B-lymphocytes.
Alternative Names B-cell receptor CD22;B-lymphocyte cell adhesion molecule;BL-CAM;Sialic acid-binding Ig-like lectin 2;Siglec-2;T-cell surface antigen Leu-14;CD22;CD22;SIGLEC2;
Subcellular Localization Cell membrane; Single-pass type I membrane protein.
Molecular Weight 95348 MW

*if product is indicated to react with multiple species, protein info is based on the human gene.

Ontology

Protein Function Mediates B-cell B-cell interactions. May be involved in the localization of B-cells in lymphoid tissues. Binds sialylated glycoproteins; one of which is CD45. Preferentially binds to alpha-2,6-linked sialic acid. The sialic acid recognition site can be masked by cis interactions with sialic acids on the same cell surface. Upon ligand induced tyrosine phosphorylation in the immune response seems to be involved in regulation of B-cell antigen receptor signaling. Plays a role in positive regulation through interaction with Src family tyrosine kinases and may also act as an inhibitory receptor by recruiting cytoplasmic phosphatases via their SH2 domains that block signal transduction through dephosphorylation of signaling molecules.
Background CD22 is a surface glycoprotein of B lymphocytes that is rapidly phosphorylated on cytoplasmic tyrosines after antigen receptor cross-linking. CD22 is a negative regulator of antigen receptor signaling whose onset of expression at the mature B cell stage may serve to raise the antigen concentration threshold required for B cell triggering. The human CD22 gene is expressed specifically in B lymphocytes and likely has an important function in cell-cell interactions. The B cell coreceptor CD22 plays an important role in regulating signal transduction via the B cell Ag receptor.3 CD22 is located within the band region q13.1 of chromosome 19.

Order Product (PA1018-1)

Promotion:

Buy primary get secondary antibody for free.
Option Price
30ug sample size $99
100ug $280
100ug+Free HRP Secondary BA1054 $280
100ug+Free Biotin Secondary BA1003 $280
Ships in 5-7 business days.

Troubleshooting

Download troubleshooting handbooks for IHC, Western blot and ELISA for FREE.

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Publications

S100+cells: A new neuro-immune cross-talkers in lymph organs
Yu X, Li L, Li Q, Zang X, Liu Z. Biol Trace Elem Res. 2011 Nov;143(2):1064-76. Doi: 10.1007/S12011-010-8941-5. Epub 2011 Jan 12. Trail And Dr5 Promote Thyroid Follicular Cell Apoptosis In Iodine Excess-Induced Experimental Autoimmune Thyroiditis I...
Huang J, Zhu C, Zhang P, Zhu Q, Liu Y, Zhu Z, Wang M, Li W, Yang G, Dong N, Liu J, Chen L, Zhang Y, Yang R, Deng L, Fan J, Wang X, Liu J, Ma B, Fu Q, Wu K. Sci Rep. 2013;3:1114. Doi: 10.1038/Srep01114. Epub 2013 Jan 23. S100+ Cells: A New Neuro-Im...

Customer Q&As

Q: Do you offer BSA-free antibodies? Keyword: Bovine serum albumin, carrier protein, conjugation
A: Yes, please contact us at support@bosterbio.com for more information about BSA-free antibodies and availability. The new BSA-free formula uses trehalose as a replacement to BSA. We have tested many alternative chemicals and found that trehalose protects the antibodies the best.
Q: Is your western blot protocol provided from the website applicable for all your antibodies? Keyword: applications, WB
A: The protocol is applicable for all our antibodies in WB, the NC Membrane(0.45μm or 0.22μm) and transfer time(70 mins or 50 mins) depends on the protein molecular weight, details can be found in included protocol.
Q: Can I conjugate markers to this antibody? Can I link custom conjugates to this antibody? Keyword: conjugation
A: The antibody is stored with BSA and cannot be conjugated with markers. Carrier free antibodies are available upon request. Please contact support@bosterbio.com
Q: What should I use for negative control?
A: Please contact us for negative control suggestions. You can also check expression databases such as genecards, uniprot etc. Due to logistic reasons, we do not sell serum or lysates that we use internally for positive or negative control.
Q: Where can I find troubleshooting information? What should I do if I have unexpected bands, high background, no signal, weak signal
A: You can find Boster's troubleshoot guides under tech support tab. Please contact us for further assistance on troubleshooting your experiment.
Q: What is the immunogen sequence of this antibody? Is this antibody polyclonal or monoclonal?
A: You can find the immunogen sequence under "Immunogen" and clonality in the product name.
Q: What is the expected band size? Why is it different than the observed band size?
A: The expected band size is predicted on the size of the protein. The actual band size may be affected by a few other factors including but not limited to:
1. Post-translational modification:phosphorylation, methylation, glycosylation etc. These modifications prevent SDS molecules from binding to the target protein and thus make the band size appear larger than expected
2. Post-translational cleavage: this can cause smaller bands and or multiple bands

3. Alternative splicing: the same gene can have alternative splicing patterns generating different size proteins, all with reactivities to the antibody.

4. Amino Acid R chain charge: SDS binds to positive charges. The different size and charge of the Amino Acid side chains can affect the amount of SDS binding and thus affect the observed band size.
5. Multimers: Multimers are usually broken up in reducing conditions. However if the interactions between the multimers are strong, the band may appear higher.,
Q: What is the suggested dilution ratio for Western Blot (WB), Immunohistochemistry (IHC) and or ELISA standards? What is the optimal pH for the sample?
A: Check the datasheet for the product for details on dilution ratios for different experiments. You can find the datasheet button on the right side of the product page.
Q: What is the protocol you used for your Western blotting (WB) and Immunohistochemistry (IHC)?
A: Check our protocols under the tech support tab.