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Flotillin 2/ESA

Function

May act as a scaffolding protein within caveolar membranes, functionally participating in formation of caveolae or caveolae-like vesicles. May be involved in epidermal cell adhesion and epidermal structure and function.

Post-translational modifications

ZDHHC5-catalyzed palmitoylation predominantly occurs at Cys-4. ZDHHC5-catalyzed palmitoylation may be required for the formation of higher-order complexes and for neurite outgrowth in cultured neural stem cells.

Sequence similarities

Belongs to the band 7/mec-2 family. Flotillin subfamily.

Tissue specificity

In skin, expressed in epidermis and epidermal appendages but not in dermis. Expressed in all layers of the epidermis except the basal layer. In hair follicles, expressed in the suprabasal layer but not the basal layer. Also expressed in melanoma and carcinoma cell lines, fibroblasts and foreskin melanocytes.

Cellular localization

  • Cell membrane
  • Peripheral membrane protein
  • Membrane
  • Caveola
  • Peripheral membrane protein
  • Endosome
  • Membrane
  • Lipid-anchor
  • Membrane-associated protein of caveolae.

Alternative names

  • Flotillin-2
  • Epidermal surface antigen
  • Membrane component chromosome 17 surface marker 1
  • ESA
  • FLOT2
  • ESA1
  • M17S1

Target type

Proteins

Molecular weight

47064Da