Human TRAF-3 Isoform 2 Antibody

Catalog #: AF3278 1 Review Datasheet

Catalog #	Availability	Size / Price	Qty
AF3278
AF3278-SP

Detection of Human TRAF‑3 Isoform 2 by Western Blot.

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Human TRAF-3 Isoform 2 Antibody Summary

Species Reactivity

Human

Specificity

Detects human TRAF-3 Isoform 2 in Western blots. In Western blots, less than 1% cross-reactivity with recombinant human TRAF-1, -2, -4, -5, or -6 is observed.

Source

Polyclonal Goat IgG

Purification

Antigen Affinity-purified

Immunogen

E. coli-derived recombinant human TRAF-3
Met1-Pro543
Accession # EAW81797

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.

Applications

Recommended Concentration

Sample

Western Blot

1 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot

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Detection of Human TRAF‑3 Isoform 2 by Western Blot. Western blot shows lysates of Jurkat human acute T cell leukemia cell line and Raji human Burkitt's lymphoma cell line. PVDF membrane was probed with 1 µg/mL Goat Anti-Human TRAF-3 Isoform 2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3278) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). For additional reference, recombinant human TRAF-1, TRAF-2, TRAF-3, TRAF-4, TRAF-5, and TRAF-6 (2 ng/lane) were included. A specific band for TRAF-3 was detected at approximately 65 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 2.

Preparation and Storage

Reconstitution

Reconstitute at 0.2 mg/mL in sterile 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: TRAF-3

Tumor Necrosis Factor (TNF) Receptor-Associated Factors (TRAFs) are a family of adaptor proteins that interact with a wide range of cell surface receptors and participate in the regulation of cell survival, proliferation, differentiation, and stress response. TRAFs were identified by their ability to form complexes with TNF receptor superfamily members but more recently are reported to also bind to Toll/IL‑1 receptor family members and mediate cellular signaling. Six members of the TRAF family have been identified. All TRAF proteins have a homologous C‑terminal TRAF domain that can bind the cytoplasmic domain of receptors as well as other TRAFs. TRAFs 2‑6 have N‑terminal RING and zinc finger domains that are involved in signaling downstream events. Two isoforms of TRAF-3 have been identified, a 368 amino acid, 64 kDa protein (isoform 1, also known as CD40BP and CRAF1) and a 543 amino acid, 61 kDa protein (isoform 2, also known as CAP1 and LAP1). TRAF‑3 has been shown bind specifically to the PEQET sequence motif on the cytoplasmic domain of CD40. TRAF3 and TRAF6 have also been identified as being involved in TLR signaling events.

Long Name

TNF Receptor-Associated Factor 3

Entrez Gene IDs

7187 (Human); 22031 (Mouse)

Alternate Names

CAP1; CAP-1CD40 receptor associated factor 1; CD40 associated protein 1; CD40 binding protein; CD40 receptor-associated factor 1; CD40-binding protein; CD40bp; CRAF1; CRAF1CAP1; LAP1; LAP1CD40BP; LMP1-associated protein 1; TNF receptor-associated factor 3; TRAF3; TRAF-3