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Manning M, Coy EJ, Sawyer WH, Acosta M. Solid-phase synthesis and some pharmacological properties of 4-threonine analogs of vasopressins and vasotocin and of arginine-vasopressin and arginine-vasotocin. J Med Chem 1973; 16:463-6. [PMID: 4718457 DOI: 10.1021/jm00263a009] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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252
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Sawyer WH, Manning M. Synthetic analogs of oxytocin and the vasopressins. ANNUAL REVIEW OF PHARMACOLOGY 1973; 13:1-17. [PMID: 4576888 DOI: 10.1146/annurev.pa.13.040173.000253] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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253
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Givas JK, Sehon AH, Manning M. Immunochemical studies of myoglobin with synthetic peptides. Biochemistry 1972; 11:1351-6. [PMID: 4112161 DOI: 10.1021/bi00758a004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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254
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Manning M, Baxter JW, Wuu TC, Smart-Abbey V, Morton K, Coy EJ, Sawyer WH. Solid phase synthesis of [4-proline]oxytocin, [4-proline]mesotocin, [4-proline]glumitocin, and [4-lysine]mesotocin. J Med Chem 1971; 14:1143-4. [PMID: 5115230 DOI: 10.1021/jm00293a044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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255
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Manning M, Coy EJ, Sawyer WH. The deamino derivatives of (4-threonine)-oxytocin and (4-threonine)-mesotocin; analogs possessing a surprising spectrum of diminished pharmacological activities. EXPERIENTIA 1971; 27:1372-4. [PMID: 5167408 DOI: 10.1007/bf02136746] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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256
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Sawyer WH, Manning M. 4-Threonine analogues of neurohypophysial hormones withh selectively enhanced oxytocin-like activities. J Endocrinol 1971; 49:151-65. [PMID: 5104449 DOI: 10.1677/joe.0.0490151] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
SUMMARY
The 4-threonine analogues of oxytocin and of mesotocin and isotocin were prepared by solid-phase synthesis. [4-Threonine]-oxytocin is about twice as active as oxytocin in rat uterus assays in vitro and in vivo and about three times as active in fowl vasodepressor assays. It is slightly more active than oxytocin in rat or rabbit milk-ejection assays. When infused intravenously into water-loaded rats it causes much less depression of diuresis than does an equal dose of oxytocin. [4-Threonine]-oxytocin has much less vasopressor activity than oxytocin. [4-Threonine]-mesotocin also shows enhanced oxytocin-like properties. Its oxytocic activity is equal to or greater than that of oxytocin and its fowl vasodepressor potency is about the same as that of [4-threonine]-oxytocin, 1500 u./mg. It also has less antidiuretic and vasopressor activities than mesotocin. Thus 4-threonine analogues, containing nothing but common l-amino acids, appear to have more of the specific oxytocin-like properties and less of the vasopressin-like properties than do oxytocin or mesotocin. Thus they may be considered improvements on the natural hormones. In this respect they are unique among the reported synthetic analogues of natural peptide hormones.
Substitution of 4-threonine in the weakly-active analogue [3-leucine]-oxytocin also increases its oxytocic and fowl vasodepressor activities. Thus a threonine in the 4-position appears to endow oxytocin-like peptides with greater specific activities than do the amino acids that occur naturally in this position, glutamine and serine. These observations may be of interest when considered (a) from an evolutionary viewpoint, (b) in attempting to interpret relations between molecular structures and biological activities, and (c) as describing peptides with more of the desired properties of oxytocin and less of the undesired properties which might have therapeutic advantages over the natural hormone.
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Manning M, Coy E, Sawyer WH. Solid-phase synthesis of (4-threonine)-oxytocin. A more potent and specific oxytocic agent than oxytocin. Biochemistry 1970; 9:3925-30. [PMID: 5533681 DOI: 10.1021/bi00822a010] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Manning M, Sawyer WH. 4-Threonine-oxytocin: a more active and specific oxytocic agent than oxytocin. Nature 1970; 227:715-6. [PMID: 5432071 DOI: 10.1038/227715a0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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259
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Sawyer WH, Baxter JW, Manning M, Heinicke E, Perks AM. A fraction resembling oxytocin from Squalus acanthias: pharmacological comparisons with synthetic peptides. Gen Comp Endocrinol 1970; 15:52-8. [PMID: 5457017 DOI: 10.1016/0016-6480(70)90096-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Baxter JW, Wuu TC, Manning M, Sawyer WH. Solid phase synthesis and some pharmacological properties of 8-glutamine-oxytocin: a possible intermediate in the evolution of the neurohypophysial hormones. EXPERIENTIA 1969; 25:1127-8. [PMID: 5357804 DOI: 10.1007/bf01900225] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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261
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Baxter JW, Manning M, Sawyer WH. Solid-phase syntheis and some pharmacological properties of [8-phenylalanine]-oxytocin. Biochemistry 1969; 8:3592-7. [PMID: 5387525 DOI: 10.1021/bi00837a015] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Sawyer WH, Wuu TC, Baxter JW, Manning M. 4-Proline analogues of neurohypophysial hormones: hypothetical intermediates in peptide evolution. Endocrinology 1969; 85:385-8. [PMID: 5814730 DOI: 10.1210/endo-85-2-385] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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263
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Sawyer WH, Manning M, Heinicke E, Perks AM. Elasmobranch oxytocin-like principles: comparisons with synthetic glumitocin. Gen Comp Endocrinol 1969; 12:387-90. [PMID: 5813627 DOI: 10.1016/0016-6480(69)90212-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Manning M, Wuu TC, Baxter JW. The purification of synthetic oxytocin and analogues by gel filtration on Sephadex G-15. J Chromatogr A 1968; 38:396-8. [PMID: 5728336 DOI: 10.1016/0021-9673(68)85065-4] [Citation(s) in RCA: 70] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Manning M, Wuu TC, Baxter JW, Sawyer WH. Solid phase synthesis and some pharmacological properties of 4-ser-8-gln-oxytocin (glumitocin). EXPERIENTIA 1968; 24:659-60. [PMID: 5750791 DOI: 10.1007/bf02138295] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Givas SJ, Centeno ER, Manning M, Sehon AH. Isolation of antibodies to the C-terminal heptapeptide of myoglobin with a synthetic peptide. IMMUNOCHEMISTRY 1968; 5:314-8. [PMID: 4969872 DOI: 10.1016/0019-2791(68)90076-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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267
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Manning M. Synthesis by the Merrifield method of a protected nonapeptide amide with the amino acid sequence of oxytocin. J Am Chem Soc 1968; 90:1348-9. [PMID: 5636538 DOI: 10.1021/ja01007a041] [Citation(s) in RCA: 108] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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268
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Manning M. Nurse for the mentally subnormal. NURSING MIRROR AND MIDWIVES JOURNAL 1966; 122:254-6. [PMID: 5177280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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269
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Manning M, Du Vigneaud V. 6-Hemi-D-cystine-oxytocin, a diastereoisomer of the posterior pituitary hormone oxytocin. J Am Chem Soc 1965; 87:3978-82. [PMID: 5845269 DOI: 10.1021/ja01095a035] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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270
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Finar IL, Manning M. 534. The preparation and some reactions of 4-formyl-l-phenylpyrazoles. ACTA ACUST UNITED AC 1961. [DOI: 10.1039/jr9610002733] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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