For Research Use Only. Not for use in diagnostic procedures.

Polyclonal

IgG

Rabbit

The antibody is a rabbit polyclonal antibody raised against HSF4. It has beenselected for its ability to recognize HSF4 in immunohistochemical staining andwestern blotting.

Affinity Chromatography

Liquid

200ug/ml (lot specific)

Store at 4 degree C for frequent use. Stored at -20 degree C to -80 degree C in a manual defrost freezer for one year without detectable loss of activity. Avoid repeated freeze-thaw cycles.

Manufactured in an ISO 9001:2008 and ISO 13485:2003 Certified Laboratory.

Manufactured in a lab with traceable raw materials. Bulk orders can typically be prepared to the customera??s specifications, please inquire.

Small volumes of anti-HSF4 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

Western Blot (WB), Immunocytochemistry (ICC), Immunohistochemistry (IHC) Formalin/Paraffin, ELISA (EIA)

Western blotting: 0.2-2ug/mL;1:250-2500
Immunohistochemistry: 5-20ug/mL;1:25-100
Immunocytochemistry: 5-20ug/mL;1:25-100
Optimal working dilutions must be determined by end user.

Western Blot: Sample: Recombinant protein.

DAB staining on fromalin fixed paraffin- embedded stomach tissue)

DAB staining on IHC-P; Samples: Human Stomach Tissue)

49,952 Da

heat shock transcription factor 4

heat shock factor protein 4

Heat shock factor protein 4

HSF 4; hHSF4; HSTF 4??[Similar Products]

Heat-shock transcription factors (HSFs) activate heat-shock response genes under conditions of heat or other stresses. HSF4 lacks the carboxyl-terminal hydrophobic repeat which is shared among all vertebrate HSFs and has been suggested to be involved in the negative regulation of DNA binding activity. Two alternatively spliced transcripts encoding distinct isoforms and possessing different transcriptional activity have been described. [provided by RefSeq, Jul 2008]

HSF4: DNA-binding protein that specifically binds heat shock promoter elements (HSE). Isoform HSF4A represses transcription while the isoform HSF4B activates transcription. Defects in HSF4 are the cause of cataract, zonular (CZ). A form of zonular cataract. Zonular or lamellar cataracts are opacities, broad or narrow, usually consisting of powdery white dots affecting only certain layers or zones between the cortex and nucleus of an otherwise clear lens. The opacity may be so dense as to render the entire central region of the lens completely opaque, or so translucent that vision is hardly if at all impeded. Zonular cataracts generally do not involve the embryonic nucleus, though sometimes they involve the fetal nucleus. Usually sharply separated from a clear cortex outside them, they may have projections from their outer edges known as riders or spokes. Defects in HSF4 are the cause of cataract Marner type (CAM). A form of cataract with variable and progressive opacities. Affected individuals present with zonular cataract, although some have nuclear, anterior polar, or stellate cataract. Finger malformation is observed in some kindreds. Belongs to the HSF family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Cell development/differentiation; DNA-binding; Transcription, coactivator/corepressor

Chromosomal Location of Human Ortholog: 16q22.1

Cellular Component: nuclear speck

Molecular Function: DNA binding transcription factor activity; sequence-specific DNA binding; transcription corepressor activity

Biological Process: camera-type eye development; cell development; histone H3-K9 demethylation; negative regulation of transcription from RNA polymerase II promoter; positive regulation of cell differentiation; positive regulation of cell proliferation; positive regulation of transcription from RNA polymerase II promoter; regulation of transcription, DNA-templated; transcription, DNA-dependent; visual perception

Disease: Cataract 5, Multiple Types

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