Human Twist-1 Fluorescein-conjugated Antibody

Catalog #: IC6230F Datasheet / COA / SDS

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IC6230F

Detection of Twist‑1 in HeLa Human Cell Line by Flow Cytometry.

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Human Twist-1 Fluorescein-conjugated Antibody Summary

Species Reactivity

Human

Specificity

Detects human Twist-1 in direct ELISAs. In direct ELISAs, less than 16% cross-reactivity with recombinant human Twist-2 is observed.

Source

Polyclonal Sheep IgG

Purification

Antigen Affinity-purified

Immunogen

E. coli-derived recombinant human Twist-1
Met1-His202
Accession # Q15672

Formulation

Supplied in a saline solution containing BSA and Sodium Azide.

Label

Fluorescein (Excitation= 488 nm, Emission= 515-545 nm)

Applications

Recommended Concentration

Sample

Intracellular Staining by Flow Cytometry

10 µL/10⁶ cells

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

Intracellular Staining by Flow Cytometry

Detection of Twist‑1 antibody in HeLa Human Cell Line antibody by Flow Cytometry.

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Detection of Twist‑1 in HeLa Human Cell Line by Flow Cytometry. HeLa human cervical epithelial carcinoma cell line was stained with Sheep Anti-Human Twist-1 Fluorescein-conjugated Antigen Affinity-purified Polyclonal Antibody (Catalog # IC6230F, filled histogram) or isotype control antibody (Catalog # IC016F, open histogram). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.

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Preparation and Storage

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Protect from light. Do not freeze.

12 months from date of receipt, 2 to 8 °C as supplied.

Background: Twist-1

Twist-1 (Twist-related protein 1; also known as H-Twist and bHLHa38) is a 25‑27 kDa class B member of the bHLH transcription factor family of proteins. It is widely expressed in embryo, and select adult cells such as white adipocytes. In fat, Twist-1 induces fatty acid oxidation via PGC-1 alpha and CPT-1, and promotes MCP-1 and TNF-alpha secretion by adipocytes. In epithelium, Twist-1 dysregulation represses E-Cadherin and induces N-Cadherin expression, resulting in an epithelial-to-mesenchymal transition that can lead to cancer. Human Twist-1 is 202 amino acids (aa) in length. It contains a bHLH domain (aa 109-164) with an embedded DNA-binding motif. Twist-1 forms homodimers, and heterodimerizes with TCF3, HAND 1 and HAND 2. Two distinct mutations exist that may impact its dimerization pattern. There is one seven aa insertion after Ile135, and a second seven aa insertion after Pro139. A third unrelated variant shows a four Gly insert after Gly92. Full-length human Twist-1 shares 98% aa identity with mouse Twist-1.

Long Name

Twist Related Protein 1 [Drosophila]

Entrez Gene IDs

7291 (Human); 22160 (Mouse); 85489 (Rat)

Alternate Names

acrocephalosyndactyly 3; ACS3; B-HLH DNA binding protein; BHLHA38; bHLHa38BPES3; BPES3; Class A basic helix-loop-helix protein 38; CRS1; H-twist; H-twistblepharophimosis, epicanthus inversus and ptosis 3; SCSBPES2; twist homolog 1 (Drosophila); TWIST homolog of drosophila; TWIST; Twist1; Twist-1; twist-related protein 1