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Letters to Nature
Nature 266, 55-57 (3 March 1977) | doi:10.1038/266055a0; Received 13 October 1976; Accepted 11 January 1977
Biochemical characterisation of a serum thymic factor
JEAN-FRANCOIS BACH*, MIREILLE DARDENNE*, JEAN-MARIE PLEAU* & JEAN ROSA†
- *INSERM U 25, Hôpital Necker, 161 rue de Sèvres, 75015 Paris, France
- †INSERM U 91, Hôpital Henri Mondor, 51 avenue du Maréchal de Lattre de Tassigny, 94000 Creteil, France
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Abstract
THE search for biologically active peptides with hormonal properties has been intense. The thymus has been looked upon as a source of such materials by a number of investigators but so far no generally accepted compounds have emerged1–5. We present here a sequence for a nonapeptide which is found in the serum of several animal species, where its presence is thymus-dependent6–8.
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