Anti-semaphorin 3B antibodies are used for the immunodetection of the protein encoded by the SEMA3B gene. In humans, the canonical protein has a reported length of 749 amino acid residues and a mass of 83.1 kDa. Its subcellular localization is in the ER and is secreted. Alternative splicing is reported to yield 2 different isoforms for this protein. It is noted to be expressed abundantly but differentially in a variety of neural and nonneural tissues. A member of the Semaphorin protein family, it is reported to inhibit axonal extension by providing local signals to specify territories inaccessible for growing axons. Other names for this target antigen include SEMA5, SEMAA, SemA, semaV, sema A(V), and LUCA-1. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish and chimpanzee species. Some semaphorin 3B antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, Immunohistochemistry is also a common application.