推荐产品
生物来源
bovine (Ruminant- Cow, Ox, Buffalo)
质量水平
方案
≥98% (HPLC)
表单
powder
技术
HPLC: suitable
cell based assay: suitable
颜色
white to off-white
有效pH范围
5.0-7 (25 °C, 180 g/L)
mp
168-170 °C (lit.)
溶解性
water: 180 g/L at 20 °C (68 °F )
应用
cell analysis
genomic analysis
life science and biopharma
储存温度
room temp
SMILES字符串
OC[C@@H](O)[C@H](O)[C@H](O)[C@@H](O)C=O
InChI
1S/C6H12O6/c7-1-3(9)5(11)6(12)4(10)2-8/h1,3-6,8-12H,2H2/t3-,4+,5+,6-/m0/s1
InChI key
GZCGUPFRVQAUEE-KCDKBNATSA-N
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一般描述
D-半乳糖是葡萄糖的 C-4 外聚体,是一种关键的哺乳动物单糖,广泛存在于血液、牛奶、神经节苷脂以及 N 和 O 链聚糖中。它普遍存在于植物和动物中,并作为多种多糖的组成部分,包括半乳甘露聚糖、卡拉胶、琼脂(L-半乳糖)、半纤维素和半乳多糖。作为一种醛己糖,它是糖脂和糖蛋白的能量来源和关键元素。D-半乳糖经过酶促转化为 D-葡萄糖进行代谢或多糖储存,代表葡萄糖的 C-4 表聚体。
此外,半乳糖是双糖乳糖的基本成分,通过 β-半乳糖苷酶水解释放,在细菌的生存和毒力中起着至关重要的作用。在大肠杆菌中,半乳糖通过 Leloir 途径起效,其中 β-d-半乳糖作为碳源,β-d-半乳糖诱导 UDP-半乳糖合成以实现生物合成糖基化。半乳糖可用于研究代谢紊乱,如半乳糖血症,并作为参与半乳糖分解代谢的酶的底物,使其成为半乳糖转移酶标记缓冲液的重要成分和 MRS 肉汤中促进嗜热乳酸菌生长的补充物。
此外,半乳糖是双糖乳糖的基本成分,通过 β-半乳糖苷酶水解释放,在细菌的生存和毒力中起着至关重要的作用。在大肠杆菌中,半乳糖通过 Leloir 途径起效,其中 β-d-半乳糖作为碳源,β-d-半乳糖诱导 UDP-半乳糖合成以实现生物合成糖基化。半乳糖可用于研究代谢紊乱,如半乳糖血症,并作为参与半乳糖分解代谢的酶的底物,使其成为半乳糖转移酶标记缓冲液的重要成分和 MRS 肉汤中促进嗜热乳酸菌生长的补充物。
应用
D-(+)-半乳糖已用于:
- 用作SGal 培养基补充剂培养酵母菌株,以检查不同 SSA 热休克蛋白 (Hsp70) 亚型在 Hsp90 伴侣功能中的作用
- 用作Biolog (MT2) 微孔板测定中的碳源,测试分离物利用碳底物的能力
- 诱导酵母中膜蛋白-绿色荧光蛋白 (GFP) 融合表达
D-半乳糖是一种能量来源和代谢物,在细胞生物学、代谢组学和生物化学研究中有广泛的应用。
生化/生理作用
D-半乳糖代谢导致形成活性氧 (ROS) ,并导致氧化压力和肝细胞损伤。
半乳糖是一种简单的单糖,可作为能量来源,也是糖脂和糖蛋白的必需成分。半乳糖被Leloir途径的酶转化为葡萄糖,从而能够促进能量代谢。缺乏编码这些蛋白质的基因,将导致代谢功能紊乱疾病半乳糖血症。
特点和优势
- 非常适合代谢组学、生物学和生化研究
- 用途广泛,适用于各种实验室和研究应用。
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
法规信息
监管及禁止进口产品
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