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Recombinant parathyroid hormone fragment

Teriparatide

Teriparatide is the first 34 amino acids of human parathyroid hormone (PTH), produced by recombinant technology and retaining the receptor-binding activity of the full hormone. It is an approved prescription drug used in bone research and osteoporosis medicine. This page is educational and not medical advice.

By The Peptides Codex Editorial TeamReviewed July 10, 2026
Length
34 aa
Class
Recombinant parathyroid hormone fragment
Function
Anabolic parathyroid-hormone receptor signaling
Context
Prescription medicine approved in Canada and the US

The active N-terminal 34 residues of parathyroid hormone, made recombinantly.

Also known as: Forteo · PTH(1-34)

Part of the Foundational & therapeutic peptides cluster

Overview

Teriparatide is the first 34 amino acids of human parathyroid hormone (PTH), produced by recombinant technology and retaining the receptor-binding activity of the full hormone. It is an approved prescription drug used in bone research and osteoporosis medicine. This page is educational and not medical advice.

Source & context

Biological / chemical source: Recombinant N-terminal 1-34 fragment of human PTH

Primary research or clinical context: Prescription medicine approved in Canada and the US

Structure and origin

Full-length PTH has 84 residues, but its biological activity resides in the N-terminus. Teriparatide reproduces residues 1-34 (SVSEIQLMHNLGKHLNSMERVEWLRKKLQDVHNF), enough to activate the PTH1 receptor. It is a classic example of using a defined hormone fragment as a therapeutic peptide.

Approval and status

Sold as Forteo, teriparatide was approved by the FDA in 2002 and is likewise a prescription medicine in Canada. Because it is a scheduled drug, it is used only under medical supervision. This educational summary describes the peptide fragment and its receptor target without offering dosing or treatment recommendations.

Sequence

One-letter sequence commonly cited for Teriparatide (educational; isoforms and modifications may differ):

SVSEIQLMHNLGKHLNSMERVEWLRKKLQDVHNF

SVSEIQLMHNLGKHLNSMERVEWLRKKLQDVHNF

S1V2S3E4I5Q6L7M8H9N10L11G12K13H14L15N16S17M18E19R20V21E22W23L24R25K26K27L28Q29D30V31H32N33F34
Helical wheel projection

Residues plotted ~100° apart around an α-helix — clustering of one color reveals an amphipathic face.

Analyze sequences in the playground →

FAQ about Teriparatide

What is Teriparatide?+

Teriparatide is the first 34 amino acids of human parathyroid hormone (PTH), produced by recombinant technology and retaining the receptor-binding activity of the full hormone. It is an approved prescription drug used in bone research and osteoporosis medicine. This page is educational and not medical advice.

Is Teriparatide an approved medicine?+

Teriparatide: Prescription medicine approved in Canada and the US. Always follow licensed medical guidance for approved products.

What is the typical length of Teriparatide?+

Teriparatide is commonly described as approximately 34 amino acids (Recombinant parathyroid hormone fragment).

Related peptides

References & further reading

  1. 1.Wikipedia — Teriparatide
  2. 2.PubChem — compound summary for Teriparatide (CID 16133850)
Disclaimer: Educational content only. Not medical advice. Not instructions for human use. Research peptides and unapproved products may be restricted or illegal to market for human consumption in your jurisdiction. Consult qualified professionals and applicable law.
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Cite this: Peptides Codex — Teriparatide educational profile.
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