crm1/exportin 1

Leptomycin B (LMB) 是一种抗真菌抗生素，可阻断真核细胞周期，抑制蛋白出核转运。Leptomycin 通过半胱氨酸残基处的共价修饰使 CRM1 exportin 1失活。

Leptomycin A, a metabolite derived from Streptomyces, acts as an inhibitor of CRM1 (exportin 1) and effectively suppresses HIV-1 replication. Compared to Leptomycin B, it exhibits lesser potency. Leptomycin A hampers the interaction between CRM1 and nuclear export signals, effectively hindering the nuclear export of a wide array of proteins.

Leptomycin B (GMP)是 Leptomycin B 的 GMP 级别试剂。Leptomycin B 是一种抗真菌抗生素，可阻断真核细胞周期，抑制蛋白出核转运。Leptomycin B (GMP) 通过半胱氨酸残基处的共价修饰使 CRM1 exportin 1失活。

KPT-251 是一种选择性核输出抑制剂。