Arp2/3 Complex

Cytochalasin D is an actin inhibitor, the removal of actin stress fibers is crucial for the chondrogenic differentiation. It may be an inhibitor of some fertilization processes such as sperm penetration or sperm head decondensation. Cytochalasin D inhibit

Cytochalasin B is a mycotoxin binding to the barbed end of actin filaments. It can disrupt the formation of actin polymers (Kd: 1.4-2.2 nM for F-actin).

SMIFH2 是formin 特异性抑制剂。它利用 Formins 阻碍肌动蛋白聚合，影响肌动蛋白细胞骨架。

CK-666 是一种肌动蛋白相关蛋白 Arp2/3 复合物的细胞渗透性抑制剂。 它与 Arp2/3 复合物结合，稳定复合物的非活性状态，阻止 Arp2 和 Arp3 亚基进入活化的丝状短节距构象。

Wiskostatin 是神经元 Wiskott-Aldrich 综合征蛋白介导的肌动蛋白聚合的选择性抑制剂，能够不可逆的使细胞 ATP 水平快速下降。

CK-869 是一种肌动蛋白相关蛋白 2/3 复合体抑制剂，其 IC50值为 7 μM。

Benproperine phosphate (Pirexyl phosphate) 是一种具有口服活性的，肌动蛋白相关蛋白 2 3 复合亚基 2 (ARPC2) 抑制剂。它通过削弱 Arp2 3 功能来减弱肌动蛋白的聚合反应速率。它可抑制癌细胞迁移和肿瘤转移，有用于治疗止咳的潜力。

CK-636 (CK-0944636)是一种具有细胞渗透性的Arp2/3复合体抑制剂，能抑制肌动蛋白的聚合，对人，裂殖酵母和牛的IC50值分别为4、24 和 32 μM。

Dihydrocytochalasin B (H2CB) 是一种细胞分裂抑制剂，抑制胞质分裂并改变细胞的形态,破坏 Swiss 3T3 小鼠成纤维细胞的肌动蛋白结构，抑制血清生长因子在静止培养物中刺激 DNA 合成的能力,瓦解肌动蛋白细胞结构并抑制 3T3 细胞中 DNA 合成的启动。低剂量的 H2CB 会导致细胞变圆和肌动蛋白微丝束的丢失。

Jasplakinolide(Jaspamide) 是一种来自海洋海绵 (marine sponge) 的天然环状肽，是一种有效的肌动蛋白聚合反应 (actin polymerization) 诱导剂。Jasplakinolide 具有抗真菌和抗肿瘤活性，可以稳定先前存在的肌动蛋白丝。Jasplakinolide 与鬼笔环肽竞争性结合 F-肌动蛋白，对 F-肌动蛋白的 Kd 值为 15 nM。

Phallacidin, a phallotoxin family member, targets and binds to F-actin in mushroom toxins.

Cytochalasin G 具有多种生物活性，包括可逆性抑制胞质分裂以及抑制嗜巨噬细胞的内吞和外排。

Latrunculin A is a toxin isolated from the red sea sponge Latrunculia magnifica. Latrunculin A binds to actin monomers and it also inhibits polymerization of actin (Kds: 0.1, 0.4, 4.7 μM, and 0.19 μM for ATP-actin, ADP-Pi-actin, ADP-actin, and G-actin, re

Inhibits neural Wiskott-Aldrich syndrome protein (N-WASP) by stabilizing the autoinhibited state of the protein. Blocks phosphatidylinositol 4,5-bisphosphate (PIP2)-stimulated actin assembly (IC50 ~ 2 μM) but does not directly inhibit actin polymerization

187-1, N-WASP inhibitor TFA，一种14-aa 环肽及N-WASP 抑制剂，能有效阻止由磷脂酰肌醇 4,5-二磷酸酯 (PIP2) 触发的肌动蛋白装配，IC50 值达 2 μM。该化合物通过维持蛋白质自身的抑制状态，进而抑制N-WASP 激活Arp2 3 复合体。

Cytochalasin L [具有可逆性抑制胞质分裂]、[抑制嗜巨噬细胞的内吞和外排]等多种生物活性。

CK548 is a novel actin-related protein (Arp)2 3 complex inhibitor.

EG-011为首创且有效的Wiskott-Aldrich综合症蛋白(WASP)激活剂, 通过促进肌动蛋白聚合以激活WASP的自抑制形式。此化合物展现出对淋巴瘤的选择性抗癌活性。

19-O-Acetylchaetoglobosin A is a fungal metabolite originally isolated fromC. globosumthat has actin polymerization inhibitory and cytotoxic activities.1,2It inhibits actin polymerization in a cell-free assay when used at a concentration of 2 μM.219-O-Acetylchaetoglobosin A (3.2, 10, and 32 μg ml) is cytotoxic to HeLa cervical cancer cells.1 1.Umeda, M., Ohtsubo, K., Saito, M., et al.Cytotoxicity of new cytochalasans from Chaetomium globosumExperientia31(4)435-438(1975) 2.Sekita, S., Yoshihira, K., Natori, S., et al.Structure-activity relationship of thirty-nine cytochalasans observed in the effects on cellular structures and cellular events and on actin polymerization in vitroJ. Pharmacobiodyn.8(11)906-916(1985)

LKKTETQ, a peptide segment, is the active site within the protein thymosin β 4 responsible for actin binding, cell migration and wound healing.

Phalloidin-TRITC is a TRITC labeled, red fluorescence probe for F-actin . Phalloidin, bound to actin filaments, reacts covalently with amino acids Glu-llT, Met-ll9, and Met355, which are very close to the nucleotide binding site.

Cytochalasin F 具有多种生物活性，包括可逆地抑制胞质分裂、阻碍嗜巨噬细胞的内吞和外排。

Cytochalasin M 具备可逆抑制胞质分裂、抑制嗜巨噬细胞的内吞与外排等多种生物活性。

Latrunculins A is a novel marine toxin, disrupts microfilament organization in cultured cells.