The Nature paper that made somatropin a manufactured protein

Published 24 October 2026 · REVIVE LAB UAE Research Desk · 5 min read
Goeddel and colleagues published in Nature in 1979 the direct expression in E. coli of a DNA sequence coding for human growth hormone, assembled from a synthetic fragment and a cloned complementary DNA. The bacteria produced the 191-residue protein with an added amino-terminal methionine. It was the first demonstration that a human hormone of this size could be made by fermentation, and it led to the first approved recombinant growth hormone in 1985.

What was done

The coding sequence was built from a chemically synthesised fragment for the first 24 codons joined to complementary DNA for the rest, placed under a bacterial promoter, and expressed. The product accumulated inside the cells and was recovered and characterised as growth hormone by immunological and biological assays.

The extra methionine came from the bacterial start codon, which E. coli does not remove from this protein.

Why it mattered

Until then every milligram of human growth hormone came from human pituitaries collected post mortem, a supply that was scarce and, as became clear in 1985, carried a transmissible disease risk. A fermentation source removed both constraints. The method generalised to other proteins and is the basis of the biologics industry.

Protropin, the methionyl product, was approved in the United States in 1985.

What followed

Later processes secreted the protein into the bacterial periplasm, where the signal peptide is cleaved and the natural 191-residue sequence is recovered without the methionine. That natural-sequence product is somatropin; the 192-residue form is somatrem.

Somatropin is supplied by REVIVE LAB UAE for laboratory research use only, with identity and purity documented for the batch. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.

What it costs

FormatStrengthPriceAvailability
HGH Somatropin Pack24 mg (72 IU)AED 850In stock

Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.

Frequently asked

What was done?

The coding sequence was built from a chemically synthesised fragment for the first 24 codons joined to complementary DNA for the rest, placed under a bacterial promoter, and expressed. The product accumulated inside the cells and was recovered and characterised as growth hormone by immunological and biological assays.

Does REVIVE LAB UAE provide dosing guidance?

No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.

How fast is delivery in the UAE?

Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.

HGH Somatropin Pack — in stock, dispatched from Dubai
HPLC-verified, lot certificate on every carton, 24-hour delivery nationwide. Browse the catalogue → All peptides UAE

Related reading

Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.