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单词 SEMA3A
释义

SEMA3A

英语百科

SEMA3A

Semaphorin-3A is a protein that in humans is encoded by the SEMA3A gene.

The SEMA3A gene is a member of the semaphorin family and encodes a protein with an Ig-like C2-type (immunoglobulin-like) domain, a PSI domain and a Sema domain. This secreted Sema3A protein can function as either a chemorepulsive agent, inhibiting axonal outgrowth, or as a chemoattractive agent, stimulating the growth of apical dendrites. In both cases, the protein is vital for normal neuronal pattern development.

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