| Bioactivity | FM4-64 is a very lipophilic, water-soluble styrene dyes, can specifically bind to cell membranes and inner membrane organelles to produce fluorescence. FM4-64 is widely used in endocytic and exospic membrane structure markers. Storage: protect from light. |
| Invitro | 1. FM 工作液配制1.1 制备储存液用 DMSO 配制 5 mM 储备液。1.2 工作液的配制用预热好的 HBSS 溶液，配制成 5-20 μM 的 FM 1-43 工作液。注：请根据实际情况调整 FM 1-43 工作液浓度，且现用现配。2. 细胞染色(悬浮细胞)2.1 离心收集细胞，加入 PBS 洗涤两次，每次 5 分钟。细胞密度在1×106/mL2.2 加入 1 mL FM 工作液，室温孵育 5-30 分钟。2.3 400 g，离心 3-4 分钟，弃去上清。2.4 加入 PBS 洗涤细胞两次，每次 5 分钟。2.5 用 1 mL 无血清培养基或 PBS 重悬细胞后，使用荧光显微镜或流式细胞仪进行观察。3. 细胞染色(贴壁细胞)3.1 将贴壁细胞培养于无菌盖玻片上。3.2 从培养基中移出盖玻片，吸除多余培养基。3.3 加入 100 μL 染料工作液，轻轻晃动使其完全覆盖细胞，孵育 5-30 分钟。3.4 吸去染料工作液，用培养基洗 2-3次，每次 5 分钟 ，使用荧光显微镜或流式细胞仪进行观察。 |
| Name | FM4-64 |
| CAS | 162112-35-8 |
| Formula | C30H45Br2N3 |
| Molar Mass | 607.51 |
| Appearance | Solid |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | -20°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
| Reference | [1]. J E Gale, et al. FM1-43 dye behaves as a permeant blocker of the hair-cell mechanotransducer channel. J Neurosci. 2001 Sep 15;21(18):7013-25. [2]. Zal T, et al. Spectral shift of fluorescent dye FM4-64 reveals distinct microenvironment of nuclear envelope in living cells. Traffic. 2006;7(12):1607-1613. [3]. Stenovec M, et al. Distinct labelling of fusion events in rat lactotrophs by FM 1-43 and FM 4-64 is associated with conformational differences. Acta Physiol (Oxf). 2007;191(1):35-42. [4]. Bolte S, et al, Satiat-Jeunemaitre B. FM-dyes as experimental probes for dissecting vesicle trafficking in living plant cells. J Microsc. 2004;214(Pt 2):159-173. |