S. Mössbauer, .. De-rimo, .. De, S. De, and S. , 90 I-5-3-1) Spectre Mössbauer. 90 I-5-3-2) Spectre Mössbauer de RimO en présence. 92 I-5-3-3) Spectre Mössbauer de RimO en conditions réductrices, 94 I-5-3-4) Spectre Mössbauer de RimO en conditions réductrices et en présence, p.96

.. La-réaction, 97 I-6-2) Détection des sous-produits de la réaction 101 I-6-3) Cinétique de formation des sous-produits de la réaction, ., p.102

.. Etude-préliminaire-réalisée-sur-rimo, 114 II-1-1-1) Amélioration de la préparation de l’holo 115 II-1-1-3) Activité de l’holo, p.118

.. Etude-du-mécanisme-réactionnel-de-miab, .. De-miab, and .. Activité-catalytique-de-miab, 120 II-1-2-1) Amélioration de la préparation 120 II-1-2-2) Le test d’activité de 122 II-1-2-4) Activité de l’holo-MiaB en présence de séléniure, ) Cinétique des produits et sous-produits de la réaction en présence de séléniure. ............................... 124 II-1-2-6) Spectroscopie RPE de MiaB en présence de sulfure, p.125

H. Etude-spectroscopique, .. De-la-protéine-miab, H. Spectroscopie, and -. De-protéine-miab, 130 II-3-1) 130 II-3-2) Spectroscopie HYSCORE de la protéine MiaB- 132 II-3-3) Spectroscopie HYSCORE de l’holo-MiaB-3M en présence de sulfure, 133 II-3-4) Spectroscopie HYSCORE de la l’holo-MiaB-3M en présence de CH 3

R. Spectroscopie, X. En-bande, S. Hyscore-de-l’holo-miab-en-présence-de, and S. De, 135 II-3-6-1) Spectroscopie RPE de l’holo-MiaB en présence 135 II-3-6-2) Spectroscopie HYSCORE de l’holo-MiaB en présence de SAM et d’ARNt, p.136

E. Le-choix-de-la-souche, -. Coli-miab, and .. De-masse, 150 III-3-2) Analyse HPLC et spectrométrie, p.150

Y. Une-nouvelle-nomenclature-pour-les-familles-de-mttases and C. , 154 III-5-1) Surexpression de MtaB de B. subtilis et Cdkal1 de souris dans 155 III-5-2) Purification de MtaB de B. subtilis 156 III-5-3) Caractérisation spectroscopique par UV-visible et RPE de l’holo, 157 III-5-4) Test enzymatique in vitro de MtaB et e-MtaB, p.159

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