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FoxA transcription factors play vital roles in regulating the expression of organ-specific genes. BmSGF1, the sole FoxA family member in Bombyx mori, is required for development of the silk gland. However, the function of BmSGF1 in development of the nervous system in the silkworm remains unknown. Here, we show that the amino acids sequence of BmSGF1 is evolutionarily conserved in its middle region...
The development of the nervous system is based on the growth and connection of axons, and axon guidance molecules are the dominant regulators during this course. Robo, as the receptor of axon guidance molecule Slit, plays a key role as a conserved repellent cue for axon guidance during the development of the central nervous system. However, the function of Robo in the silkworm Bombyx mori is unknown...
Axon guidance is critical for proper wiring of the nervous system. During the neural development, the axon guidance molecules play a key role and direct axons to choose the correct way to reach the target. Robo, as the receptor of axon guidance molecule Slit, is evolutionarily conserved from planarians to humans. However, the function of Robo in the silkworm, Bombyx mori, remained unknown. In this...
Coevolution of a ligand and its receptor is critical for maintaining their function in different species, but how ligand and its receptor coevolve is poorly understood. The axon guidance molecule Netrin and its receptor Frazzled (Fra) are useful to study the mechanisms of ligand–receptor coevolution. Here, we have applied codon substitution models to identify positive selection of the netrin and fra...
The rat angiotensin type 1a receptor (AT 1a R) is comprised of three exons. Two transcripts are possible due to alternative splicing of exon 2 (E1,3 and E1,2,3). Both transcripts code for identical AT 1a R proteins since they differ only in the length of their 5′ leader sequence (5′LS). We investigated the functional differences of these two transcripts in stably transfected Chinese...
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