Sr-Spider Polypeptide-5

What is it?

sr-Spider Polypeptide-5 is a single chain recombinant spider protein, produced by fermentation in E. coli. The starting gene is a synthesized copy of the gene from the spider, Araneus diadematus , which codes for Major ampullate spidroin 2 variant 4. The parent protein contains a maximum of 230 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.

What does it do?

Sr-Spider Polypeptide-5 is listed in the EU cosmetic ingredient inventory with the following declared functions:

• Not reported

  function not declared in the EU CosIng database — the substance is approved for cosmetic use, but no specific role has been categorised

EU regulatory status

Sr-Spider Polypeptide-5 is allowed for use in cosmetic products in the European Union under Regulation 1223/2009. It is not subject to a specific Annex restriction at the time of writing.

Related ingredients

• 1,2-Bis-(2-Aminoethoxy)ethane not reported
• 1,3-Bis-(2,4-Diaminophenoxy) Propane Hcl not reported
• 1,3-Bis-(Isocyanatomethyl) Cyclohexane not reported
• 1,4-Cyclohexanedicarboxylic Acid not reported
• 1,6-Hexamethylene Diisocyanate not reported
• 2,3-Epoxypropyl Cocodimonium Chloride not reported