Rabbit anti-Human IL21 Polyclonal Antibody | anti-IL21 antibody

IL21 (Za11, Interleukin-21, IL-21) (Biotin)

Cat. Num. AAA6483261

• Gene Names: IL21; Za11; IL-21
• Reactivity: Human
• Applications: Western Blot, ELISA
• Purity: Purified by Immunoaffinity chromatography.
• Synonyms: IL21; Polyclonal Antibody; IL21 (Za11; Interleukin-21; IL-21) (Biotin); anti-IL21 antibody

• Host: Rabbit
• Reactivity: Human
• Clonality: Polyclonal
• Isotype: IgG
• Specificity: Recognizes human IL21.
• Purity/Purification: Purified by Immunoaffinity chromatography.
• Form/Format: Supplied as a liquid in PBS, pH 7.2. No preservative added. Labeled with Biotin.

• Applicable Applications for anti-IL21 antibody: Western Blot (WB), ELISA (EIA)
• Application Notes: WB: 1:100-1:500; ELISA: 1:1,000; Applications are based on unconjugated antibody.
• Immunogen: Human IL21.
• Conjugate: Biotin
• Note: Preservative Free
• Preparation and Storage: Store product at 4 degree C if to be used immediately within two weeks. For long-term storage, aliquot to avoid repeated freezing and thawing and store at -20 degree C. Aliquots are stable at -20 degree C for 12 months after receipt. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Western Blot (WB)

(Western blot analysis of IL21 in MDA-MB435 cell line lysates (35ug/lane). IL21 (arrow) was detected using the purified Pab.)

Immunohistochemistry (IHC)

(Formalin-fixed and paraffin-embedded human breast carcinoma reacted with IL21 Antibody, which was peroxidase-conjugated to the secondary antibody, followed by DAB staining. This data demonstrates the use of this antibody for immunohistochemistry; clinical relevance has not been evaluated.)

Flow Cytometry (FC/FACS)

(IL21 Antibody flow cytometry analysis of MDA-MB231 cells (bottom histogram) compared to a negative control cell (top histogram). FITC-conjugated goat-anti-rabbit secondary antibodies were used for the analysis.)

Product Categories/Family for anti-IL21 antibody

Antibodies; Interleukin

References

1. Sivakumar P.V., et.al., Immunology 112:177-182(2004).

NCBI and Uniprot Product Information

• NCBI GI #: 333033767
• NCBI GeneID: 59067
• NCBI Accession #: NP_001193935.1
• NCBI GenBank Nucleotide #: NM_001207006.2
• UniProt Accession #: Q9HBE4; A5J0L4
• Molecular Weight: 17,923 Da
• NCBI Official Full Name: interleukin-21 isoform 2
• NCBI Official Synonym Full Names: interleukin 21
• NCBI Official Symbol: IL21
• NCBI Official Synonym Symbols: Za11; IL-21
• NCBI Protein Information: interleukin-21; interleukin-21 isoform
• UniProt Protein Name: Interleukin-21
• Protein Family: Interleukin
• UniProt Gene Name: IL21
• UniProt Synonym Gene Names: IL-21
• UniProt Entry Name: IL21_HUMAN

NCBI Description

This gene encodes a member of the common-gamma chain family of cytokines with immunoregulatory activity. The encoded protein plays a role in both the innate and adaptive immune responses by inducing the differentiation, proliferation and activity of multiple target cells including macrophages, natural killer cells, B cells and cytotoxic T cells. Dysregulation of this gene plays a role in multiple immune-mediated diseases including lupus, psoriasis and chronic inflammatory diseases. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]

Uniprot Description

IL21: Cytokine with immunoregulatory activity. May promote the transition between innate and adaptive immunity. Induces the production of IgG(1) and IgG(3) in B-cells. May play a role in proliferation and maturation of natural killer (NK) cells in synergy with IL15. May regulate proliferation of mature B- and T-cells in response to activating stimuli. In synergy with IL15 and IL18 stimulates interferon gamma production in T-cells and NK cells. During T-cell mediated immune response may inhibit dendritic cells (DC) activation and maturation. Belongs to the IL-15/IL-21 family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Apoptosis; Secreted, signal peptide; Secreted; Cytokine; Cell development/differentiation

Chromosomal Location of Human Ortholog: 4q26-q27

Cellular Component: extracellular space

Molecular Function: hematopoietin/interferon-class (D200-domain) cytokine receptor binding; interleukin-2 receptor binding; cytokine activity

Biological Process: positive regulation of interleukin-17 production; positive regulation of natural killer cell cytokine production; cell maturation; signal transduction; positive regulation of natural killer cell mediated cytotoxicity; positive regulation of interleukin-10 production; positive regulation of tyrosine phosphorylation of Stat3 protein; positive regulation of natural killer cell differentiation; positive regulation of tyrosine phosphorylation of Stat1 protein; positive regulation of tissue remodeling; positive regulation of cell proliferation; positive regulation of B cell proliferation; positive regulation of T cell proliferation; immune response; positive regulation of interferon-gamma biosynthetic process; positive regulation of inflammatory response

Disease: Immunodeficiency, Common Variable, 11