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CD22 Polyclonal Antibody, Invitrogen™

Rabbit Polyclonal Antibody

Brand:  Invitrogen PA529893

Product Code. 13414247

  • 514.00 EUR / 100µL

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Description

Description

Recommended positive controls: Raji. Store product as a concentrated solution. Centrifuge briefly prior to opening the vial.

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.
TRUSTED_SUSTAINABILITY
Specifications

Specifications

CD22
Polyclonal
Unconjugated
CD22
A530093D23; B-cell receptor CD22; BL-CAM; B-lymphocyte cell adhesion molecule; B-lymphocyte cell adhesion molecule (BL-CAM); Cd22; CD22 antigen; CD22 molecule; FLJ22814; Lectin 2; Leu-14; Lyb8; Lyb-8; MGC130020; sialic acid binding Ig-like lectin 2; sialic acid-binding Ig-like lectin 2; Sialic acid-binding Ig-like lectin 2 (Siglec-2); Siglec2; Siglec-2; T-cell surface antigen Leu-14
Rabbit
Antigen affinity chromatography
RUO
933
Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.
Liquid
Western Blot
0.79 mg/mL
0.1M tris glycine with 20% glycerol and 0.01% thimerosal; pH 7
P20273
CD22
Recombinant fragment corresponding to a region within amino acids 576 and 816 of Human CD22
100 μL
Primary
Human
Antibody
IgG
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