How the Prohormone Theory Solved Two Important Controversies in Hormonal and Neural Peptide Biosynthesis
This Prohormone Theory was simultaneously proposed in 1967 by two independent groups using two different approaches and two experimental models. Donald Steiner, in elegant pulse-chase experiments, proposed the existence of proinsulin when he observed that a human insulinoma was producing higher MW...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2013-10-01
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| Series: | Frontiers in Endocrinology |
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| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fendo.2013.00148/full |
| _version_ | 1811308555019485184 |
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| author | Michel eChretien |
| author_facet | Michel eChretien |
| author_sort | Michel eChretien |
| collection | DOAJ |
| description | This Prohormone Theory was simultaneously proposed in 1967 by two independent groups using two different approaches and two experimental models. Donald Steiner, in elegant pulse-chase experiments, proposed the existence of proinsulin when he observed that a human insulinoma was producing higher MW forms of immunoreactive insulin, subsequently transformed into insulin-like material (Steiner et al., 1967). Simultaneously and independently, Michel Chrétien, based on amino acid sequence homologies between three pituitary peptides, -lipotropic hormone (β-LPH), -LPH and -melanocycte-stimulating hormone (β-MSH), concluded that active peptide hormones are derived from endoproteolytic cleavages of inactive precursors, apparently at pairs of basic amino acids (Chrétien and Li, 1967). One year later, Donald Chance confirmed that the cleavage sites in proinsulin were also made of paired basic amino acids (Chance et al., 1968). This novel paradigm solved two major controversies on the biosynthesis of both insulin and neuropeptides. This short review describes how. |
| first_indexed | 2024-04-13T09:26:26Z |
| format | Article |
| id | doaj.art-385912b531004a7296e14c2f7c9436a2 |
| institution | Directory Open Access Journal |
| issn | 1664-2392 |
| language | English |
| last_indexed | 2024-04-13T09:26:26Z |
| publishDate | 2013-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Endocrinology |
| spelling | doaj.art-385912b531004a7296e14c2f7c9436a22022-12-22T02:52:26ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922013-10-01410.3389/fendo.2013.0014862135How the Prohormone Theory Solved Two Important Controversies in Hormonal and Neural Peptide BiosynthesisMichel eChretien0Institut de recherches cliniques de MontrealThis Prohormone Theory was simultaneously proposed in 1967 by two independent groups using two different approaches and two experimental models. Donald Steiner, in elegant pulse-chase experiments, proposed the existence of proinsulin when he observed that a human insulinoma was producing higher MW forms of immunoreactive insulin, subsequently transformed into insulin-like material (Steiner et al., 1967). Simultaneously and independently, Michel Chrétien, based on amino acid sequence homologies between three pituitary peptides, -lipotropic hormone (β-LPH), -LPH and -melanocycte-stimulating hormone (β-MSH), concluded that active peptide hormones are derived from endoproteolytic cleavages of inactive precursors, apparently at pairs of basic amino acids (Chrétien and Li, 1967). One year later, Donald Chance confirmed that the cleavage sites in proinsulin were also made of paired basic amino acids (Chance et al., 1968). This novel paradigm solved two major controversies on the biosynthesis of both insulin and neuropeptides. This short review describes how.http://journal.frontiersin.org/Journal/10.3389/fendo.2013.00148/fullNeuropeptidesPeptide HormonesProprotein ConvertasesProhormone Theorybiosynthesis. |
| spellingShingle | Michel eChretien How the Prohormone Theory Solved Two Important Controversies in Hormonal and Neural Peptide Biosynthesis Frontiers in Endocrinology Neuropeptides Peptide Hormones Proprotein Convertases Prohormone Theory biosynthesis. |
| title | How the Prohormone Theory Solved Two Important Controversies in Hormonal and Neural Peptide Biosynthesis |
| title_full | How the Prohormone Theory Solved Two Important Controversies in Hormonal and Neural Peptide Biosynthesis |
| title_fullStr | How the Prohormone Theory Solved Two Important Controversies in Hormonal and Neural Peptide Biosynthesis |
| title_full_unstemmed | How the Prohormone Theory Solved Two Important Controversies in Hormonal and Neural Peptide Biosynthesis |
| title_short | How the Prohormone Theory Solved Two Important Controversies in Hormonal and Neural Peptide Biosynthesis |
| title_sort | how the prohormone theory solved two important controversies in hormonal and neural peptide biosynthesis |
| topic | Neuropeptides Peptide Hormones Proprotein Convertases Prohormone Theory biosynthesis. |
| url | http://journal.frontiersin.org/Journal/10.3389/fendo.2013.00148/full |
| work_keys_str_mv | AT michelechretien howtheprohormonetheorysolvedtwoimportantcontroversiesinhormonalandneuralpeptidebiosynthesis |