Mouse CD22/Siglec 2 ELISA Kit PicoKine®

Mfr.No.

EK1303

Sensitivity

<10 pg/ml

Detection Range

156 pg/ml - 10,000 pg/ml

Reactivity

Mouse

Sample Volume

Concentration (pg/ml)	0	156	312	625	125000	25000	5000	10,000
O.D.	0.039	0.080	0.116	0.221	0.394	0.701	1.150	1.992

Description

Mouse CD22/Siglec 2 ELISA Kit PicoKine® (96 Tests). Quantitate Mouse Cd22 in cell culture supeatants, cell lysates, serum and plasma (heparin, EDTA). Sensitivity: 10pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.

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;Lyb-8, Siglec2;

Molecular Weight

96582 MW

Immunogen

Expression system for standard: NS0; Immunogen sequence: S22-R702

Kit Components

Description Quantity
Pre-coated 96-well strip microplate 1
Standard 2 vials
Biotinylated antibody (100x) 100ul
Avidin-Biotin-Peroxidase Complex (100x) 100ul
Sample Diluent 30ml
Antibody Diluent 12ml
Avidin-Biotin-Peroxidase Diluent 12ml
Color Developing Reagent (TMB) 10ml
Stop Solution 10ml
Wash Buffer (25x) 20ml
Adhesive plate sealers 4

Cross Reactivity

There is no detectable cross-reactivity with other relevant proteins.

Specificity

Natural and recombinant mouse CD22

Subcellular Localization

Cell membrane; Single-pass type I membrane protein.

Sample Type

Cell culture supeatants, Cell lysates, Serum, Plasma

Anticoagulant

heparin or EDTA

Precision

	Intra-Assay Precision			Inter-Assay Precision
Sample	1	2	3	1	2	3
n	16	16	16	24	24	24
Mean (pg/ml)	240	2070	4058	246	1914	3971
Standard deviation	16.56	124.2	182.61	18.94	132.06	218.4
CV (%)	6.9%	6%	4.5%	7.7%	6.9%	5.5%

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 or cluster of differentiation-22, is a molecule belonging to the SIGLEC family of lectins. This gene is mapped to 19q13.2. It is found on the surface of mature B cells and to a lesser extent on some immature B cells. Generally speaking, CD22 is a regulatory molecule that prevents the overactivation of the immune system and the development of autoimmune diseases. It 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. CD22 functions as an inhibitory receptor for B cell receptor (BCR) signalling. This gene can downmodulate signaling through the IgM and IgD B-cell receptors (BCRs), but not through the IgG BCR, because the IgG cytoplasmic tail prevents CD22 phosphorylation and actually enhances IgG-BCR signaling.

Reproducibility

Lots	Lot 1 (pg/ml)	Lot 2 (pg/ml)	Lot 3 (pg/ml)	Lot 4 (pg/ml)	Mean (pg/ml)	Standard Deviation	CV (%)
Sample 1	240	242	251	262	248	8.69	3.5%
Sample 2	2070	1778	1779	2120	1936	159.23	8.2%
Sample 3	4058	4096	4754	4460	4342	284.97	6.5%

*number of samples for each test n=16.

Notes

Material Required But Not Provided:
Microplate Reader capable of reading absorbance at 450nm.
Incubator.
Automated plate washer .
Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions.
Multichannel pipettes are recommended for large amount of samples.
Deionized or distilled water.
500ml graduated cylinders.
Test tubes for dilution.

Gene ID	12483
Gene Name	CD22
UniProt ID	P35329
Protein Name	B-cell receptor CD22
Tissue Specificity	B-lymphocytes.
Sequence	Belongs to the immunoglobulin superfamily. SIGLEC (sialic acid binding Ig-like lectin) family.

Applications	ELISA
Research Area	Adaptive Immunity,B Cells,Cancer,Hematopoietic Progenitors,Immunology,Lymphoid,Stem Cells,Tumor Antigens,Tumor Biomarkers,Tumor Immunology,Tumor-Associated Antigens

Storage	Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)

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SKU	Supplier No.	Size	Your price	Quantity
BHE21000895	EK1303	96 wells/kit	$750		Add to Cart

Mouse CD22/Siglec 2 ELISA Kit PicoKine®

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