Key Product Details

Validated by

Knockout/Knockdown

Species Reactivity

Validated:

Human

Cited:

Human, Mouse, Primate - Macaca fuscata (Japanese Macaque)

Applications

Validated:

Knockout Validated, Western Blot, Immunocytochemistry, Simple Western

Cited:

Immunohistochemistry, Immunohistochemistry-Frozen, Western Blot, Immunocytochemistry, Immunoprecipitation

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG
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Product Specifications

Immunogen

E. coli-derived recombinant human FABP5/E‑FABP
Ala2-Glu135
Accession # Q01469

Specificity

Detects human FABP5/E‑FABP in direct ELISAs and Western blots. In direct ELISAs and Western blots, approximately 30% cross-reactivity with recombinant mouse (rm) FABP5 is observed and less than 5% cross-reactivity with recombinant human FABP1, -2, -3, -4, -6, -7, and rmFABP9 is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Scientific Data Images for Human FABP5/E‑FABP Antibody

Detection of Human FABP5/E-FABP antibody by Western Blot.

Detection of Human FABP5/E‑FABP by Western Blot.

Western blot shows lysates of human heart tissue, human brain (cerebellum) tissue, and human placenta tissue. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human FABP5/E-FABP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3077) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for FABP5/E-FABP at approximately 15 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Detection of Human FABP5/E‑FABP by Simple WesternTM.

Simple Western lane view shows lysates of Exosome Standards (Human Urine) (NBP2-49840) and human placenta tissue, loaded at 0.5 mg/ml. A specific band was detected for FABP5/E‑FABP at approximately 20 kDa (as indicated) using 10 µg/ml of Goat Anti-Human FABP5/E‑FABP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3077) followed by HRP-conjugated Donkey Anti-Goat Secondary Antibody (Catalog # 042-206). This experiment was conducted under reducing conditions and using the 2-40kDa separation system.

FABP5/E-FABP antibody in HUVEC Human Umbilical Vein Endothelial Cells by Immunocytochemistry (ICC).

FABP5/E‑FABP in HUVEC Human Umbilical Vein Endothelial Cells.

FABP5/E-FABP was detected in immersion fixed HUVEC human umbilical vein endothelial cells using Goat Anti-Human FABP5/E-FABP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3077) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; Catalog # NL001) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Detection of Human FABP5/E-FABP antibody by Simple WesternTM.

Detection of Human FABP5/E‑FABP by Simple WesternTM.

Simple Western lane view shows lysates of human heart tissue and human placenta tissue, loaded at 0.2 mg/mL. A specific band was detected for FABP5/E-FABP at approximately 21 kDa (as indicated) using 10 µg/mL of Goat Anti-Human FABP5/E-FABP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3077) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Detection of Human FABP5/E-FABP antibody by Simple WesternTM.

Detection of Human FABP5/E‑FABP by Simple WesternTM.

Simple Western lane view shows lysates of HepG2 human hepatocellular carcinoma cell line and HeLa human cervical epithelial carcinoma cell line, loaded at 0.2 mg/mL. A specific band was detected for FABP5/E-FABP at approximately 21 kDa (as indicated) using 12.5 µg/mL of Goat Anti-Human FABP5/E-FABP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3077) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Western Blot Shows Human FABP5/E-FABP Antibody Specificity by Using Knockout Cell Line.

Western Blot Shows Human FABP5/E‑FABP Specificity by Using Knockout Cell Line.

Western blot shows lysates of HeLa human cervical epithelial carcinoma parental cell line and FABP5/E-FABP knockout HeLa cell line (KO). PVDF membrane was probed with 1 µg/mL of Goat Anti-Human FABP5/E-FABP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3077) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for FABP5/E-FABP at approximately 15 kDa (as indicated) in the parental HeLa cell line, but is not detectable in knockout HeLa cell line. GAPDH (Catalog # AF5718) is shown as a loading control. This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Detection of Mouse FABP5/E-FABP by Western Blot

Detection of Mouse FABP5/E-FABP by Western Blot

Rotenone induced neurotoxicity, especially with co-overexpression of FABP5 and alpha -Synuclein. (A) Representative images of immunoblots probed with antibodies against alpha Syn (~19 kDa) and FABP5 (~12 kDa). Blots with anti-beta -tubulin antibody showed that a similar amount of protein was loaded. (B,C) Viability of Neuro-2A cells treated with indicated concentrations of rotenone for 48 h was assessed using CCK-8 assays. The transfection conditions were pcDNA 3.1-transfected cells (mock) and FABP5-transfected cells in (B); alpha Syn-transfected cells and alpha Syn/FABP5-transfected cells ( alpha S/F5) in (C). Results are presented as means ± SEM (n = 4 parallel cell experiments). * p < 0.05, ** p < 0.01, vs. 0 μM rotenone groups; ## p < 0.01 vs. alpha Syn-transfected cells. CCK-8: cell counting kit-8. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33499263), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Mouse FABP5/E-FABP by Western Blot

Detection of Mouse FABP5/E-FABP by Western Blot

Effects of rotenone on alpha Syn oligomerization and aggregation in FABP5/ alpha Syn-transfected Neuro-2A cells. (A–D) Representative images of immunoblots probed with antibodies against alpha Syn and FABP5 under non-denaturing conditions of Triton-soluble and SDS-soluble fractions. Detection with anti-beta -tubulin antibody was used as a protein-loading control. (E–G) Quantitative analyses of protein contents of different molecular weights, which indicate protein complexes of dimer/trimers, oligomers, and aggregates. Results are presented as means ± SEM (n = 3 respective cell experiments). * p < 0.05, ** p < 0.01, vs. 0.1 μM rotenone-treated alpha S/F5 cells. n.s., not statistically significant. D/T: dimers/trimers; O: oligomers; A: aggregates. bk besides blots indicate non-specific bands. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33499263), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Mouse FABP5/E-FABP by Western Blot

Detection of Mouse FABP5/E-FABP by Western Blot

Effects of rotenone on alpha Syn oligomerization and aggregation in FABP5/ alpha Syn-transfected Neuro-2A cells. (A–D) Representative images of immunoblots probed with antibodies against alpha Syn and FABP5 under non-denaturing conditions of Triton-soluble and SDS-soluble fractions. Detection with anti-beta -tubulin antibody was used as a protein-loading control. (E–G) Quantitative analyses of protein contents of different molecular weights, which indicate protein complexes of dimer/trimers, oligomers, and aggregates. Results are presented as means ± SEM (n = 3 respective cell experiments). * p < 0.05, ** p < 0.01, vs. 0.1 μM rotenone-treated alpha S/F5 cells. n.s., not statistically significant. D/T: dimers/trimers; O: oligomers; A: aggregates. bk besides blots indicate non-specific bands. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33499263), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Mouse FABP5/E-FABP by Western Blot

Detection of Mouse FABP5/E-FABP by Western Blot

Effects of rotenone on alpha Syn oligomerization and aggregation in FABP5/ alpha Syn-transfected Neuro-2A cells. (A–D) Representative images of immunoblots probed with antibodies against alpha Syn and FABP5 under non-denaturing conditions of Triton-soluble and SDS-soluble fractions. Detection with anti-beta -tubulin antibody was used as a protein-loading control. (E–G) Quantitative analyses of protein contents of different molecular weights, which indicate protein complexes of dimer/trimers, oligomers, and aggregates. Results are presented as means ± SEM (n = 3 respective cell experiments). * p < 0.05, ** p < 0.01, vs. 0.1 μM rotenone-treated alpha S/F5 cells. n.s., not statistically significant. D/T: dimers/trimers; O: oligomers; A: aggregates. bk besides blots indicate non-specific bands. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33499263), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Mouse FABP5/E-FABP by Western Blot

Detection of Mouse FABP5/E-FABP by Western Blot

Effects of rotenone on alpha Syn oligomerization and aggregation in FABP5/ alpha Syn-transfected Neuro-2A cells. (A–D) Representative images of immunoblots probed with antibodies against alpha Syn and FABP5 under non-denaturing conditions of Triton-soluble and SDS-soluble fractions. Detection with anti-beta -tubulin antibody was used as a protein-loading control. (E–G) Quantitative analyses of protein contents of different molecular weights, which indicate protein complexes of dimer/trimers, oligomers, and aggregates. Results are presented as means ± SEM (n = 3 respective cell experiments). * p < 0.05, ** p < 0.01, vs. 0.1 μM rotenone-treated alpha S/F5 cells. n.s., not statistically significant. D/T: dimers/trimers; O: oligomers; A: aggregates. bk besides blots indicate non-specific bands. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33499263), licensed under a CC-BY license. Not internally tested by R&D Systems.

Applications for Human FABP5/E‑FABP Antibody

Application
Recommended Usage

Immunocytochemistry

5-15 µg/mL
Sample: Immersion fixed HUVEC human umbilical vein endothelial cells

Knockout Validated

FABP5/E‑FABP is specifically detected in HeLa human cervical epithelial carcinoma parental cell line but is not detectable in FABP5/E‑FABP knockout HeLa cell line.

Simple Western

10-12.5 µg/mL
Sample: Human heart tissue, human placenta tissue, HepG2 human hepatocellular carcinoma cell line and HeLa human cervical epithelial carcinoma cell line

Western Blot

1 µg/mL
Sample: Human heart tissue, human brain (cerebellum) tissue, and human placenta tissue

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.


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Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
*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.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: FABP5/E-FABP

Human FABP-5, also known as epidermal fatty acid binding protein (E-FABP), is a 15 kDa member of a cytosolic fatty acid binding protein superfamily. It is associated with keratinocytes and adipocytes and is suggested to promote fatty acid availability to enzymes, protect cell structures from fatty acid attack, and target fatty acids to nuclear transcription factors. The amino acid sequence of human FABP5 is 80%, 81% and 92% identical to that of mouse, rat and bovine FABP5, respectively.

Long Name

Fatty Acid-Binding Protein 5

Alternate Names

E-FABP, EFABP

Entrez Gene IDs

2171 (Human); 16592 (Mouse); 140868 (Rat)

Gene Symbol

FABP5

UniProt

Additional FABP5/E-FABP Products

Product Documents for Human FABP5/E‑FABP Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human FABP5/E‑FABP Antibody

For research use only

Citations for Human FABP5/E‑FABP Antibody

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Protocols

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