FKBP38 Antibody [Unconjugated]

Western blot shows lysates of HepG2 human hepatocellular carcinoma cell line, MDA‑MB‑468 human breast cancer cell line, A549 human lung carcinoma cell line, C2C12 mouse myoblast cell line, and L6 rat myoblast cell line. PVDF membrane was probed with 0.5 µg/mL of Goat Anti-Human/Mouse/Rat FKBP38 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3580) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). A specific band was detected for FKBP38 at approximately 60 - 64 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 2.

Simple Western lane view shows lysates of HepG2 human hepatocellular carcinoma cell line and MDA‑MB‑468 human breast cancer cell line, loaded at 0.2 mg/mL. A specific band was detected for FKBP38 at approximately 58 kDa (as indicated) using 5 µg/mL of Goat Anti-Human/Mouse/Rat FKBP38 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3580) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the12-230 kDa separation system.

FKBP38 was detected in immersion fixed paraffin-embedded sections of human intestine using 15 µg/mL Goat Anti-Human/Mouse/Rat FKBP38 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3580) overnight at 4 °C. Tissue was stained with the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific labeling was localized to the nucleus of epithelial cells in intestinal glands. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections. This application has not been tested in rat or mouse tissue.

• Reactivity: Hu, Mu, Rt
• Applications: WB, Simple Western, IHC
• Clonality: Polyclonal
• Host: Goat
• Conjugate: Unconjugated
• Concentration: LYOPH

FKBP38 Antibody [Unconjugated] Summary

• Immunogen: E. coli derived recombinant mouse FKBP38
  Met1-Gly326
  Accession # AAH03739
• Specificity: Detects human, mouse, and rat FKBP38 in Western blots. In Western blots, less than 1% cross-reactivity with recombinant human FKBP-12, -12.6, -13, -25, -51, or -52 is observed.
• Source: N/A
• Isotype: IgG
• Clonality: Polyclonal
• Host: Goat
• Gene: FKBP8
• Purity: Immunogen affinity purified
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Western Blot 0.5 ug/mL
  • Simple Western 5 ug/mL
  • Immunohistochemistry 5-15 ug/mL
• Application Notes: In Simple Western only 10-15 uL of the recommended dilution is used per data point.

Packaging, Storage & Formulations

• 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.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
• Preservative: No Preservative
• Concentration: LYOPH
• Purity: Immunogen affinity purified
• Reconstitution Instructions: Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for FKBP38 Antibody [Unconjugated]

• 38 kDa FK506-binding protein
• EC 5.2.1.8,38 kDa FKBP
• FK506 binding protein 8, 38kDa
• FK506-binding protein 8 (38kD)
• FK506-binding protein 8
• FKBP38
• FKBP-38
• FKBP38PPIase FKBP8
• FKBP8
• FKBP-8
• FKBPR38
• hFKBP38
• peptidyl-prolyl cis-trans isomerase FKBP8
• rotamase

Background

FK506 Binding Proteins (FKBPs) are intracellular receptors for the immuno-suppressive drug FK506. The FKBP/FK506 complex exerts its immunosuppressive effects by inhibiting calcineurin, a calcium- and calmodulin-dependent serine/threonine phosphatase that functions as a critical signaling molecule during T cell activation. FKBP38, also known as FKBP8, is a 355 amino acid (aa) protein with a calculated molecular weight of 38.7 kDa and an apparent molecular mass of ~60-64 kDa in SDS-PAGE. FKBP38 binds to and inhibits calcineurin even in the absence of FK506, indicating that FKBP38 is a constitutively active inhibitor of calcineurin. Additionally, FKBP38 immunoprecipitates with Bcl-2 and Bcl-xL, suggesting that FKBP38 may regulate apoptosis by anchoring Bcl-2 and Bcl-xL to mitochondrial membranes. Mouse FKBP38 shares 94% and 87% sequence identity with human and rat FKBP38, respectively.

Limitations

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.

Publications for FKBP38 Antibody (AF3580)(1)

Publication using AF3580

• Peng L, Liang D, Tong W Hepatitis C virus NS5A activates the mammalian target of rapamycin (mTOR) pathway, contributing to cell survival by disrupting the interaction between FK506-binding protein 38 (FKBP38) and mTOR. J. Biol. Chem., 2010;285(27):20870-81. 2010 [PMID: 20439463] (Western Blot, Human)

Bioinformatics

• Gene Symbol: FKBP8
• Uniprot:
  • AAH03739()