5029
In this study , we show that obtusilactone B functions as a small - molecule inhibitor that causes abnormal nuclear envelope dynamics and inhibits growth by suppressing vaccinia - related kinase 1 ( VRK1 ) - mediated phosphorylation of barrier - to - autointegration factor ( BAF ) .
 Chemical: obtusilactone B
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: obtusilactone B