Siglec-3/CD33 Antibody (PSH02-51)

Novus Biologicals | Catalog # NBP3-32147

Recombinant Monoclonal Antibody
Novus Biologicals
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Key Product Details

Species Reactivity

Human

Applications

Western Blot, Flow Cytometry, Immunocytochemistry/ Immunofluorescence

Label

Unconjugated

Antibody Source

Recombinant Monoclonal Rabbit IgG Clone # PSH02-51 expressed in HEK293
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Product Specifications

Immunogen

Recombinant protein within human Siglec-3/CD33 aa 1-282 / 364 (P20138). (Uniprot: P20138)

Localization

Cell membrane; Peroxisome.

Clonality

Monoclonal

Host

Rabbit

Isotype

IgG

Theoretical MW

40 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Description

Novus Biologicals Rabbit Siglec-3/CD33 Antibody (PSH02-51) (NBP3-32147) is a recombinant monoclonal antibody validated for use in WB, Flow and ICC/IF. All Novus Biologicals antibodies are covered by our 100% guarantee.

Scientific Data Images for Siglec-3/CD33 Antibody (PSH02-51)

Siglec-3/CD33 Antibody (PSH02-51)

Western Blot: Siglec-3/CD33 Antibody (PSH02-51) [NBP3-32147]

Western Blot: Siglec-3/CD33 Antibody (PSH02-51) [NBP3-32147] - Western blot analysis of Siglec-3/CD33 on different lysates with Rabbit anti-Siglec-3/CD33 antibody (NBP3-32147) at 1/2,000 dilution.

Lane 1: TF-1 cell lysate
Lane 2: Jurkat cell lysate (negative)
Lane 3: SK-MEL-28 cell lysate (negative)

Lysates/proteins at 20 ug/Lane.

Predicted band size: 40 kDa
Observed band size: 70 kDa

Exposure time: 3 minutes;

4-20% SDS-PAGE gel.

Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (NBP3-32147) at 1/2,000 dilution was used in 5% NFDM/TBST at 4C overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody at 1/50,000 dilution was used for 1 hour at room temperature.
Siglec-3/CD33 Antibody (PSH02-51)

Immunocytochemistry/ Immunofluorescence: Siglec-3/CD33 Antibody (PSH02-51) [NBP3-32147]

Immunocytochemistry/ Immunofluorescence: Siglec-3/CD33 Antibody (PSH02-51) [NBP3-32147] - Immunocytochemistry analysis of TF-1 (positive) and Jurkat (negative) labeling Siglec-3/CD33 with Rabbit anti-Siglec-3/CD33 antibody (NBP3-32147) at 1/500 dilution.

Cells were fixed in 100% precooled methanol for 5 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-Siglec-3/CD33 antibody (NBP3-32147) at 1/500 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.

Beta tubulin (red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 594) was used as the secondary antibody at 1/1,000 dilution.
Siglec-3/CD33 Antibody (PSH02-51)

Flow Cytometry: Siglec-3/CD33 Antibody (PSH02-51) [NBP3-32147]

Flow Cytometry: Siglec-3/CD33 Antibody (PSH02-51) [NBP3-32147] - Flow cytometric analysis of TF-1 cells labeling Siglec-3/CD33.

Cells were washed twice with cold PBS and resuspend. Then stained with the primary antibody (NBP3-32147, 1μg/mL) (red) compared with Rabbit IgG Isotype Control (green). After incubation of the primary antibody at +4℃ for an hour, the cells were stained with a iFluor™ 488 conjugate-Goat anti-Rabbit IgG Secondary antibody at 1/1,000 dilution for 30 minutes at +4℃. Unlabelled sample was used as a control (cells without incubation with primary antibody; black).

Applications for Siglec-3/CD33 Antibody (PSH02-51)

Application
Recommended Usage

Flow Cytometry

1:1000

Immunocytochemistry/ Immunofluorescence

1:500

Western Blot

1:2000

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Formulation, Preparation, and Storage

Purification

Protein A purified

Formulation

PBS (pH7.4), 0.1% BSA and 40% Glycerol

Preservative

0.05% Sodium Azide

Concentration

1 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: Siglec-3/CD33

CD33 is a 67 kDa type I transmembrane glycoprotein and a member of the sialoadhesin family of cell surface receptors. It is absent from pluripotent stem cells but appears on myelomonocytic precursors after CD34. It then continues to be expressed on both the myeloid and monocyte lineages, although it is absent on granulocytes. While it has been reported that CD33 can function as a sialic acid-dependent cell adhesion molecule, cells expressing CD33 require desialylation before they can bind cells bearing the appropriate sialoglycoconjugates. This suggests that inhibitory cis interactions may regulate or block any adhesion function. (1-4)

Long Name

Sialic Acid Binding Ig-like Lectin 3

Alternate Names

CD33, gp67, Siglec3

Gene Symbol

CD33

Additional Siglec-3/CD33 Products

Product Documents for Siglec-3/CD33 Antibody (PSH02-51)

Certificate of Analysis

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Product Specific Notices for Siglec-3/CD33 Antibody (PSH02-51)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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