(S)-3'-<wbr/>hydroxy Blebbistatin

(S)-3′-hydroxy Blebbistatin

CAT N°: 24169
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From 176.00 149.60

(S)-3’-hydroxy Blebbistatin is a more stable and less phototoxic form of (–)-blebbistatin (Item No. 13013), which is a selective cell-permeable inhibitor of non-muscle myosin II ATPases.{16452,17037} (–)-Blebbistatin rapidly and reversibly inhibits Mg-ATPase activity and in vitro motility of non-muscle myosin IIA and IIB for several species (IC50s = 0.5-5 µM), while poorly inhibiting smooth muscle myosin (IC50 = 80 µM).{17036} Through these effects, it blocks apoptosis-related bleb formation, directed cell migration, and cytokinesis in vertebrate cells. However, prolonged exposure to blue light (450-490 nm) results in degradation of blebbistatin to an inactive product via cytotoxic intermediates, which may be problematic for its use in fluorescent live cell imaging applications.{17038,24037} The addition of a 3’-hydroxy group decreases the inherent fluorescence while retaining the activity of (–)-blebbistatin.{40574} (S)-3′-hydroxy-Blebbistatin has the same stereochemistry as the active (–)-blebbistatin enantiomer.

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