Thanks Thanks:  0
Recommend Recommend:  0
Likes Likes:  0
  1. #1
    Ph.D. P.E.D. Kinesiology Intramuscular Injection Certified Board Certified MD
    Presser's Avatar
    Join Date
    May 2002
    Posts
    38,265
    M-Chem Coin = $1
    217
    Rep Power
    10

    Default Never Buy SYNTHETIC MADE IGF-1 LR3 -

    Recombinant Human LR3 Insulin-like Growth Factor-1 LR3-IGF1 Is What You Want To Purchase!

    Yes They are sold lyophilized as well as reconstituted straight from manufactors like Sigma and such.

    Stay away from The Synthetic garbage

    The Insulin-like growth factors (IGFs) are mitogenic polypeptide growth factors, predominantly produced in the liver, that stimulate the proliferation and survival of various cell types, including muscle, bone and cartilage tissue in vitro. IGFs belong to the Insulin gene family and are similar by structure and function to insulin, but have a much higher growth-promoting activity. IGF1 expression is regulated by growth hormone, while IGF2 expression is influenced by placenta lactogen. Both IGF1 and IGF2 signal through the tyrosine kinase type I receptor (IGF IR). Mature IGFs are generated through proteolytic processing of inactive precursor proteins. Recombinant human IGF1 is a globular protein containing 70 amino acids and 3 intra-molecular disulfide bonds.

    The LR3 IGF1 has a substitution of arginine for the glutamic acid at position 3 of human IGF1 and an extension of 13 amino acid residues. This change of sequence causes it to have a much longer half-life and is specifically designed and manufactured for mammalian cell culture to support large-scale manufacturing of recombinant biopharmaceuticals.

    Sterile Filtered White lyophilized powder. Purified and tested for use in cell culture.
    Source: Escherichia coli
    MW: ~9.1 kDa (83 amino acids)
    Purity: >98% by SDS-PAGE analysis
    >90% by RP-HPLC analysis

    Storage/Handling: Store desiccated at -20C.
    Author: Ben Presser
    Ph.D. P.E.D. Kinesiology
    Intramuscular Injection Certified

    The Most Reviewed IGF-1 lr3 On the Internet- PERIOD!

  2. #2
    Ph.D. P.E.D. Kinesiology Intramuscular Injection Certified Board Certified MD
    Presser's Avatar
    Join Date
    May 2002
    Posts
    38,265
    M-Chem Coin = $1
    217
    Rep Power
    10

    Default

    Author: Ben Presser
    Ph.D. P.E.D. Kinesiology
    Intramuscular Injection Certified

    The Most Reviewed IGF-1 lr3 On the Internet- PERIOD!

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Log in

Log in