Alternative splicing is pervasive in vertebrates. yet little is known about most isoforms or their regulation. transformer-2b (tra2b) encodes a splicing regulator whose endogenous function is poorly understood. Tra2b knockdown in Xenopus results in embryos with multiple defects. https://www.bekindtopets.com/flash-find-Expansion-Board-2-0-for-Pycom-IoT-Development-Boards-Discontinued-clearance/