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| 编号: | 575643 |
| 中文名称: | H2N-Asp-Val-Leu-Arg-AFC |
| 单字母: | H2N-DVLR-AFC |
| 三字母: | H2N N端氨基:N-terminal amino group。在肽或多肽链中含有游离a-氨基的氨基酸一端。在表示氨基酸序列时,通常将N端放在肽链的左边。 -AspL-天冬氨酸:aspartic acid。系统命名为(2S)-氨基-丁二酸。是编码氨基酸,又是神经递质。符号:D,Asp。D-天冬氨酸存在于多种细菌的细胞壁和短杆菌肽A中。 -ValL-缬氨酸:valine。系统命名为(2S)-氨基-3-甲基丁酸。是编码氨基酸。是哺乳动物的必需氨基酸。符号:V,Val。在某些放线菌素如缬霉素中存在 D-缬氨酸。 -LeuL-亮氨酸:leucine。系统命名为(2S)-氨基-4-甲基戊酸。是编码氨基酸。是哺乳动物的必需氨基酸。符号:L,Leu。 -ArgL-精氨酸:arginine。系统命名为(2S)-氨基-5-胍基戊酸。在生理条件下带正电荷,为编码氨基酸。是幼小哺乳动物的必需氨基酸。符号:R,Arg。 -AFC7-氨基-4-三氟甲基香豆素(AFC)是一种荧光染料,其激发波长为376纳米,发射波长为480纳米。 |
| 氨基酸个数: | 4 |
| 分子式: | C31H43N7O8F3 |
| 平均分子量: | 698.71 |
| 精确分子量: | 698.31 |
| 等电点(PI): | 10.56 |
| pH=7.0时的净电荷数: | 0.98 |
| 平均亲水性: | 0.675 |
| 疏水性值: | - |
| 消光系数: | - |
| 来源: | 人工化学合成,仅限科学研究使用,不得用于人体。 |
| 纯度: | 95% 或98%可选 |
| 盐体系: | 若定制,可选TFA盐、醋酸盐、盐酸盐和柠檬酸盐等 |
| 生成周期: | 现货或定制2-3周,请咨询销售人员 |
| 储存条件: | 负80℃至负20℃ |
| 标签: | AFC修饰肽 |
This fluorogenic substrate is commonly used to measure protease activity. When in the presence to the protease of interest,\xa0H-D-Val-Leu-Arg-AFC is cleaved by the enzyme and a fluorescent compound is released. The amount of substrate cleaved is proportional to fluorescence increase, enabling the protease activity to be quantified. This makes H-D-Val-Leu-Arg-AFC perfect for use in investigating the activity and function of protease enzymes such as kallikrein. Specifically, it can be used\xa0in biochemical research as a fluorescent indicator of proteolysis and peptide release by kallikrein (excitation wavelength 400 nm and emission wavelength 505 nm).
7-Amino-4-trifluoromethyl-coumarin (AFC) is fluorophor with an excitation at 376 nm ▉ and emission of 480 nm ▉.





