Sema4a
(Sema Domain, Immunoglobulin Domain (Ig), Transmembrane Domain (TM) and Short Cytoplasmic Domain, (Semaphorin) 4A (Sema4a))
Protein-Typ
Recombinant
Proteineigenschaft
AA 33-683
Spezies
Human
Quelle
HEK-293 Cells
Aufreinigungstag / Konjugat
Dieses Sema4a Protein ist gelabelt mit His tag.
Sequenz
AA 33-683
Produktmerkmale
This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 72.7 kDa. The protein migrates as 70-80 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Sema4a
Spezies: Human
Wirt: HEK-293 Cells
Recombinant
> 80 % as determined by SDS-PAGE and Coomassie blue staining
AbP, STD
Beschränkungen
Nur für Forschungszwecke einsetzbar
Format
Lyophilized
Buffer
PBS, pH 7.4
Handhabung
Please avoid repeated freeze-thaw cycles.
Lagerung
-20 °C
Informationen zur Lagerung
No activity loss was observed after storage at: In lyophilized state for 1 year (4 °C), After reconstitution under sterile conditions for 3 months (-70 °C).
Chiou, Lucassen, Sather, Kallianpur, Connor: "Semaphorin4A and H-ferritin utilize Tim-1 on human oligodendrocytes: A novel neuro-immune axis." in: Glia, Vol. 66, Issue 7, pp. 1317-1330, (2018) (PubMed).
Peng, Gao, Chong, Liu, Zhang: "Semaphorin 4A enhances lung fibrosis through activation of Akt via PlexinD1 receptor." in: Journal of biosciences, Vol. 40, Issue 5, pp. 855-62, (2015) (PubMed).
Target
Sema4a
(Sema Domain, Immunoglobulin Domain (Ig), Transmembrane Domain (TM) and Short Cytoplasmic Domain, (Semaphorin) 4A (Sema4a))
Semaphorin-4A (SEMA4A) is also known as Semaphorin-B (SEMAB), which belongs to the semaphorin family. SEMA4A contains one Ig-like C2-type (immunoglobulin-like) domain, one PSI domain and one sema domain. SEMA4A is cell surface receptor for PLXNB1, PLXNB2, PLXNB3 and PLXND1 that plays an important role in cell-cell signaling. SEMA4A plays a role in priming antigen-specific T-cells, promotes differentiation of Th1 T-helper cells, and thereby contributes to adaptive immunity. SEMA4A also promotes phosphorylation of TIMD2 and inhibits angiogenesis. SEMA4A promotes axon growth cone collapse and inhibits axonal extension by providing local signals to specify territories inaccessible for growing axons.