Semaphorin 3a (SEMA3A) ELISA Kit for Human

This 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 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. Increased expression of this protein is associated with schizophrenia and is seen in a variety of human tumor cell lines. Also, aberrant release of this protein is associated with the progression of Alzheimer's disease. [provided by RefSeq, Jul 2008]

SEMA3A: Induces the collapse and paralysis of neuronal growth cones. Could serve as a ligand that guides specific growth cones by a motility-inhibiting mechanism. Binds to the complex neuropilin-1/plexin-1. Belongs to the semaphorin family.

Protein type: Motility/polarity/chemotaxis; Secreted; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 7q21.11

Cellular Component: axon; dendrite; extracellular region; extracellular space

Molecular Function: chemorepellent activity; semaphorin receptor binding

Biological Process: apoptosis; axon extension involved in axon guidance; axon guidance; axonal fasciculation; branchiomotor neuron axon guidance; dendrite morphogenesis; facial nerve structural organization; gonadotrophin-releasing hormone neuronal migration to the hypothalamus; negative chemotaxis; negative regulation of axon extension involved in axon guidance; nerve development; neuron migration; olfactory bulb development; regulation of axon extension involved in axon guidance; regulation of heart rate; sensory system development; sympathetic nervous system development; trigeminal nerve structural organization

Disease: Hypogonadotropic Hypogonadism 16 With Or Without Anosmia