• Species Reactivity
  Human
• Specificity
  Detects human ASCL2/Mash2 in Western blots.
• Source
  Polyclonal Sheep IgG
• Purification
  Antigen Affinity-purified
• Immunogen
  E. coli-derived recombinant human ASCL2/Mash2
  Met1-Ala49
  Accession # Q99929
• Formulation
  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.
• Label
  Unconjugated

• Western Blot
  1 µg/mL
  See below
• Immunohistochemistry
  5-15 µg/mL
  See below

• Reconstitution
  Sterile PBS to a final concentration of 0.2 mg/mL.
• Shipping
  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
• 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.

• Long Name:
  Achaete-scute Complex-like 1
• Entrez Gene IDs:
  430 (Human); 17173 (Mouse); 24209 (Rat)
• Alternate Names:
  achaete-scute complex (Drosophila) homolog-like 2; achaete-scute complex homolog 2 (Drosophila); achaete-scute complex-like 2 (Drosophila); ASCL2; ASH2; ASH-2; BHLHA45; bHLHa45achaete-scute homolog 2; Class A basic helix-loop-helix protein 45; HASH2; HASH2achaete-scute complex-like 2; mammalian achaete/scute homologue 2; Mash2

Background:

ASCL2 (Achaete-scute like 2; also HASH2, bHLHa45 and Mash2) is a class II member of the HLH family of transcription factors. Its predicted MW is 20 kDa. ASCL2 shows restricted expression, being limited to intestinal Lgr5⁺ stem cells and first trimester placental cytotrophoblasts. In the intestine, ASCL2 is under the control of Wnts and serves to maintain an epithelium stem cell pool. In the placenta, ASCL2 acts to maintain the pool of cytotrophoblasts at the expense of synctiotrophoblasts, thus promoting placental growth. Human ASCL2 is 193 amino acids (aa) in length. It contains one poly-Arg motif (aa 36-39), a DNA binding sequence (aa 53-63) and an HLH domain (aa 64-103). ASCL2 forms heterodimers with daughterless homologs (E22, E2A and HEB). Over aa 1-49, human ASCL2 shares 59% aa identity with mouse Mash2.

 

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