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Product Details
PA5-94933
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human
Host/Isotype
Rabbit
/ IgG
Class
Polyclonal
Type
Antibody
Immunogen
A synthetic peptide corresponding to a sequence at the C-terminus of human CD22 (832-847aa ERPQAQENVDYVILKH).
Conjugate
Form
Lyophilized
Concentration
500 µg/mL
Purification
Affinity chromatography
Storage buffer
PBS with 5mg BSA
Contains
0.05mg sodium azide, 0.05mg thimerosal
Storage conditions
Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_2806739
Product Specific Information
Reconstitute with 0.2 mL of distilled water to yield a concentration of 500 µg/mL.
Target Information
CD22 (BL-CAM) is a type 1 integral membrane glycoprotein with molecular weight of 130 to 140 kDa. CD22 is expressed in both the cytoplasm and cell membrane of B-lymphocytes. CD22 antigen appears early in B-cell lymphocyte differentiation at approximately the same stage as the CD19 antigen. Unlike other B-cell markers, CD22 membrane expression is limited to the late differentiation stages comprised between mature B cells (CD22+) and plasma cells (CD22-), and may thus prove useful in phenotyping mature leukemias. CD22 is also strongly expressed in hairy cell leukemia. CD22 preferentially binds to alpha2,6-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. CD22 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. CD22 is also strongly expressed in hairy cell leukemia. CD22 is also positive in diffuse large B-cell lymphoma and nodular lymphocyte predominance Hodgkin’s lymphoma, but negative in classical Hodgkin’s lymphoma.
⚠WARNING: This product can expose you to chemicals including mercury, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: B-cell receptor CD22; B-lymphocyte cell adhesion molecule; B-lymphocyte cell adhesion molecule (BL-CAM); BL-CAM; CD22; CD22 antigen; FLJ22814; Lectin 2; Leu-14; MGC130020; sialic acid binding Ig-like lectin 2; Sialic acid-binding Ig-like lectin 2; Sialic acid-binding Ig-like lectin 2 (Siglec-2); Siglec-2; T-cell surface antigen Leu-14
Gene Aliases: CD22; SIGLEC-2; SIGLEC2
UniProt ID: (Human) P20273
Entrez Gene ID: (Human) 933
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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