货号:A884890 同义名: Cyanocobalamin;Cobalamin
Vitamin B12 is a water-soluble vitamin that is involved in the metabolism of cells as it is a cofactor in DNA synthesis.
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描述 | Vitamin B12 is a water soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. Vitamin B12 is a complex organometallic cofactor associated with three subfamilies of enzymes: the adenosylcobalamin-dependent isomerases, the methylcobalamin-dependent methyltransferases, and the dehalogenases[3]. Light excitation energy can promote covalent linkage of B12 to transcription factors with this linkage, affecting gene expression[4]. Vitamin B12 is synthesized in some bacteria but not in animals and plants. Intestinal absorption and subsequent plasma transport of vitamin B12 are mediated by specific vitamin B12-binding proteins and their receptors in mammals. Vitamin B12 taken up by the cells is enzymatically converted to coenzyme forms of vitamin B12, methyl- and adenosyl-vitamin B12, which function as coenzymes of methionine synthase (EC 2.1.13), involved in methionine biosynthesis, and methylmalonyl-CoA mutase (EC 5.4.99.2), involved in oxidation of odd-numbered fatty acids and amino acids (valine, isoleucine, and threonine), respectively[5]. |
计算器 | ||||
存储液制备 | 1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
0.74mL 0.15mL 0.07mL |
3.69mL 0.74mL 0.37mL |
7.38mL 1.48mL 0.74mL |
CAS号 | 68-19-9 |
分子式 | C63H88CoN14O14P |
分子量 | 1355.365 |
别名 | Cyanocobalamin;Cobalamin;NSC 80365;Docigram |
运输 | 蓝冰 |
存储条件 |
液体 -20°C:3-6个月-80°C:12个月 粉末 Inert atmosphere,2-8°C |
溶解度 |
DMSO: 20 mg/mL(14.76 mM),配合低频超声,并水浴加热至45℃助溶,注意:DMSO长时间开封后,会吸水并导致溶解能力下降,请避免使用长期开封的DMSO H2O: 6 mg/mL(4.43 mM),配合低频超声,并水浴加热至45℃助溶 |
动物实验配方 |