Human TRIM21 Antibody

R&D Systems, part of Bio-Techne | Catalog # MAB6219

R&D Systems, part of Bio-Techne
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MAB6219
MAB6219-SP
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Key Product Details

Species Reactivity

Human

Applications

Immunocytochemistry

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # 672722

View all TRIM21 Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant human TRIM21
Arg195-Pro293
Accession # P19474

Specificity

Detects human TRIM21 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant human (rh) TRIM, rhTRIM5, rhTRIM5a, rhTRIM32, rhTRIF (aa 29-204), or rhTRIF (aa 474-618) is observed

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Scientific Data Images for Human TRIM21 Antibody

TRIM21 antibody in Human PBMCs by Immunocytochemistry (ICC).

TRIM21 in Human PBMCs.

TRIM21 was detected in immersion fixed human peripheral blood mononuclear cells (PBMCs) stimulated for 8 hours with 20 ng/mL of Recombinant Human IFN-gamma (Catalog # 285-IF) using Mouse Anti-Human TRIM21 Monoclonal Antibody (Catalog # MAB6219) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 493-conjugated Anti-Mouse IgG Secondary Antibody (green; Catalog # NL009) and counterstained with DAPI (blue). Specific staining was localized to cell surfaces and cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Applications for Human TRIM21 Antibody

Application
Recommended Usage

Immunocytochemistry

8-25 µg/mL
Sample: Immersion fixed human peripheral blood mononuclear cells (PBMCs) stimulated for 8 hours with 20 ng/mL of Recombinant Human IFN-gamma (Catalog # 285‑IF)
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Sterile PBS to a final concentration of 0.5 mg/mL. For liquid material, refer to CoA for concentration.

Reconstitution Buffer Available:
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Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: TRIM21

TRIM21 (Tripartite motif-containing protein 21; also Ro(SS-A), 52 kDa Ro Protein/Ro52, and RING finger protein 81) is a 52-56 kDa member of the RING finger-B-box-coiled-coil family of proteins. It is an E3 ligase that is found in both nucleus and cytoplasm, where it is often associated with microtubules. TRIM21 ubiquitinates select proteins. In B cells, it targets the Fc fragment of misfolded IgG, providing QC on its production. In macrophages, it acts in a nondegradative manner on IRF8, promoting innate immunity. Human TRIM21 is 475 amino acids (aa) in length. It contains one E3 ligase RING finger domain (aa 16-55), a B-Box type zinc-finger region (aa 92-123), a coiled-coil region (aa 128-238) and a C-terminal SPRY/B30.2 Ig binding domain (aa 268-465). TRIM21 is reported to form trimers. Over aa 195‑293, human TRIM21 exhibits 72% aa identity with mouse TRIM21.

Long Name

Tripartite Motif-containing Protein 21

Alternate Names

RNF81, Ro52, SSA1

Entrez Gene IDs

6737 (Human); 20821 (Mouse); 308901 (Rat)

Gene Symbol

TRIM21

UniProt

P19474 (Human)

Additional TRIM21 Products

Product Documents for Human TRIM21 Antibody

Product Datasheets

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Human TRIM21 Antibody

For research use only

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