Adenosylcobalamin/ja: Difference between revisions

Adenosylcobalamin/ja
Created page with "アデノシルコバラミン"
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Created page with "{{Drugbox | Verifiedfields = changed | verifiedrevid = 447929261 | IUPAC_name = Coα-[α-(5,6-dimethylbenzimidazolyl)]-Coβ-<br>(5'-deoxy-5'-adenosyl)cobamide | image = AdoCbl-ColorCoded.png | image2 = Cobamamide 3D sticks.png <!--Clinical data--> | tradename = | Drugs.com = {{drugs.com|international|cobamamide}} | pregnancy_AU = <!-- A / B1 / B2 / B3 / C / D / X --> | pregnancy_US = <!-- A / B / C / D / X --> | pregnancy_category = | legal_AU = <!-- Unsched..."
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{{Short description|Biologically active form of vitamin B12}}
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'''Adenosylcobalamin''' (AdoCbl), also known as '''coenzyme B<sub>12</sub>''', '''cobamamide''', and '''dibencozide''', is, along with [[methylcobalamin]] (MeCbl), one of the biologically active forms of [[vitamin B12|vitamin B<sub>12</sub>]].
'''Adenosylcobalamin''' (AdoCbl), also known as '''coenzyme B<sub>12</sub>''', '''cobamamide''', and '''dibencozide''', is, along with [[methylcobalamin]] (MeCbl), one of the biologically active forms of [[vitamin B12|vitamin B<sub>12</sub>]].
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アデノシルコバラミンは、ラジカルを介した1,2-炭素骨格の転位において補因子として関与する。これらのプロセスには、炭素-コバルト結合のホモ分解による[[deoxyadenosyl radical/ja|デオキシアデノシルラジカル]]の形成が必要である。この結合は非常に弱く、結合解離エネルギーは31kcal/molであり、酵素[[active site/ja|活性部位]]の化学環境ではさらに低下する。アデノシルコバラミンを[[Cofactor (biochemistry)/ja|補因子]]として用いる[[enzyme/ja|酵素]][[methylmalonyl-CoA mutase/ja|メチルマロニル-CoAミューターゼ]](MCM)がある。
Adenosylcobalamin participates as a cofactor in radical-mediated 1,2-carbon skeleton rearrangements. These processes require the formation of the [[deoxyadenosyl radical]] through homolytic dissociation of the carbon-cobalt bond. This bond is exceptionally weak, with a bond dissociation energy of 31 kcal/mol, which is further lowered in the chemical environment of an enzyme [[active site]]. An [[enzyme]] that uses adenosylcobalamin as a [[Cofactor (biochemistry)|cofactor]] is [[methylmalonyl-CoA mutase]] (MCM).
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