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Merck
CN

M9756

Sigma-Aldrich

甲钴胺

vitamin B12 analog

别名:

Methyl cobalamine

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关于此项目

经验公式(希尔记法):
C63H91CoN13O14P
化学文摘社编号:
分子量:
1344.38
EC 号:
MDL编号:
UNSPSC代码:
12352205
eCl@ss:
34058004
PubChem化学物质编号:
NACRES:
NA.79
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质量水平

方案

≥97%

表单

powder

技术

HPLC: suitable

颜色

red to very dark red

储存温度

−20°C

SMILES字符串

C[Co+]N1C2=C(C)C3=NC(=CC4=NC([C@@H](CCC(N)=O)C4(C)C)=C(C)C5=N[C@H]([C@H](CC(N)=O)[C@@]5(C)CCC(=O)NCC(C)OP([O-])(=O)O[C@H]6[C@@H](O)[C@H](O[C@@H]6CO)n7cnc8cc(C)c(C)cc78)[C@@]1(C)[C@@](C)(CC(N)=O)[C@@H]2CCC(N)=O)[C@@H](CCC(N)=O)[C@]3(C)CC(N)=O

InChI

1S/C62H90N13O14P.CH3.Co/c1-29-20-39-40(21-30(29)2)75(28-70-39)57-52(84)53(41(27-76)87-57)89-90(85,86)88-31(3)26-69-49(83)18-19-59(8)37(22-46(66)80)56-62(11)61(10,25-48(68)82)36(14-17-45(65)79)51(74-62)33(5)55-60(9,24-47(67)81)34(12-15-43(63)77)38(71-55)23-42-58(6,7)35(13-16-44(64)78)50(72-42)32(4)54(59)73-56;;/h20-21,23,28,31,34-37,41,52-53,56-57,76,84H,12-19,22,24-27H2,1-11H3,(H15,63,64,65,66,67,68,69,71,72,73,74,77,78,79,80,81,82,83,85,86);1H3;/q;;+2/p-2/t31?,34-,35-,36-,37+,41-,52-,53-,56-,57+,59-,60+,61+,62+;;/m1../s1

InChI key

JEWJRMKHSMTXPP-WYVZQNDMSA-L

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一般描述

甲基钴胺素(MeCbl)是维生素B12 (钴胺素)的类似物。它与钴胺素的不同之处在于含有一个甲基。生理活性形式的维生素B12含有甲基钴胺素和腺苷钴胺素。

应用

在自动竞争蛋白结合(CPB)测定中,甲钴胺已被用于制备血清维生素B12的标准溶液。

生化/生理作用

甲基钴胺素(MeCbl)是蛋氨酸合酶的辅酶。在甲基化循环中,蛋氨酸合酶参与高半胱氨酸到蛋氨酸的转化。它具有改善神经系统疾病、腕管综合症和bell′s麻痹的作用。
相较于其他咕啉/钴胺素衍生物来说,维生素B12 类似物是一种效力较低的一氧化氮合酶(NOS)抑制剂。

储存分类代码

11 - Combustible Solids

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Kenneth M Prentice et al.
mAbs, 5(6), 974-981 (2013-08-09)
Process control of protein therapeutic manufacturing is central to ensuring the product is both safe and efficacious for patients. In this work, we investigate the cause of pink color variability in development lots of monoclonal antibody (mAb) and Fc-fusion proteins.
Methylcobalamin: a potential vitamin of pain killer
Zhang M, et al.
Neural Plast. (2013)
Kiyoshi Okada et al.
Neuroscience letters, 495(3), 201-204 (2011-04-05)
Methylcobalamin (MeCbl), a vitamin B12 analog, promotes neurite outgrowth by activating Akt in neurons. However, Akt is involved in many cellular functions, and the downstream signal of Akt that promotes neurite outgrowth in neurons in the presence of MeCbl remains
C L Drennan et al.
Current opinion in structural biology, 4(6), 919-929 (1994-12-01)
Cobalamin-dependent methionine synthase is a large enzyme composed of structurally and functionally distinct regions. Recent studies have begun to define the roles of several regions of the protein. In particular, the structure of a 27 kDa cobalamin-binding fragment of the
John David Spence
Clinical chemistry and laboratory medicine, 51(3), 633-637 (2013-03-02)
Therapy to lower homocysteine with B vitamins does reduce the risk of stroke, if not myocardial infarction. The apparent lack of efficacy of vitamin therapy in most of the large clinical trials was probably determined by the failure to take

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