Human/Mouse HSF4 Antibody

Catalog #: MAB5695 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB5695
MAB5695-SP

Detection of Human/Mouse HSF4 by Western Blot.

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Human/Mouse HSF4 Antibody Summary

Species Reactivity

Human, Mouse

Specificity

Detects endogenous human and mouse HSF4 in Western blots.

Source

Monoclonal Mouse IgG₁ Clone # 504524

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

E. coli-derived recombinant human HSF4
Ser309-Pro463
Accession # BAA13433

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

2 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/Mouse HSF4 by Western Blot. Western blot shows lysates of NIH-3T3 mouse embryonic fibroblast cell line, human LNCaP human prostate cancer cell line, and HeLa human cervical epithelial carcinoma cell line. PVDF membrane was probed with 2 µg/mL of Human/Mouse HSF4 Monoclonal Antibody (Catalog # MAB5695) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for HSF4 at approximately 53 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 2.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 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: HSF4

HSF4 (heat shock factor 4) is a 53 kDa member of the HSF family of transcription factors. It is highly expressed in the lens where it maintains lens integrity and blocks FGF synthesis. Human HSF4 has two isoforms HSF4B and HSF4A. Human HSF4B is 493 amino acids in length. It contains one DNA binding region (aa 18‑122) and two hydrophobic repeat domains A/B and C (aa 130‑204 and 369‑390). HSF4B activates transcription, whereas, HSF4A represses transcription. HSF4A shows a 45 aa substitution for aa 246‑320. Over aa 309‑463, human HSF4B shares 73% aa sequence identity with mouse HSF4B.

Long Name

Heat Shock Transcription Factor 4

Entrez Gene IDs

3299 (Human); 26386 (Mouse)

Alternate Names

ATHSF4; AT-HSFB1; cataract, Marner; CTM; heat shock factor protein 4; heat shock transcription factor 4CTM; hHSF4; HSF 4; HSF4; HSFB1; HSTF 4