Semaphorins are a family of secreted and cell-bound signaling molecules defined by the presence of a common 5 aa Sema domain. They are best characterized in relation to axon guidance during development of the nervous system. The functions of Semaphorins 3A (SEMA3A) are mediated primarily through binding to the Neuropilin-1 (Npn-1) and Plexin-A1 coreceptor complex. Neuropilins lack a signaling-competent cytoplasetmic domain and ensure semaphorin binding, whereas the transmembrane receptor plexin mediates the intracellular response. As the first identified vertebrate semaphorin, SEMA3A functions either as 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. Its overexpression is associated with schizophrenia which is seen in various human tumor cell lines, and aberrant release is associated with the progression of Alzheimer's disease
Pack Size | Availability | Price/USD | Quantity |
---|---|---|---|
50 μg | In stock | $ 255.00 | |
100 μg | 5 days | $ 436.00 | |
200 μg | 5 days | $ 745.00 | |
500 μg | 5 days | $ 2,350.00 |
Biological Information | Testing in progress |
Description | Semaphorins are a family of secreted and cell-bound signaling molecules defined by the presence of a common 5 aa Sema domain. They are best characterized in relation to axon guidance during development of the nervous system. The functions of Semaphorins 3A (SEMA3A) are mediated primarily through binding to the Neuropilin-1 (Npn-1) and Plexin-A1 coreceptor complex. Neuropilins lack a signaling-competent cytoplasetmic domain and ensure semaphorin binding, whereas the transmembrane receptor plexin mediates the intracellular response. As the first identified vertebrate semaphorin, SEMA3A functions either as 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. Its overexpression is associated with schizophrenia which is seen in various human tumor cell lines, and aberrant release is associated with the progression of Alzheimer's disease |
Species | Human |
Expression System | HEK293 |
Tag | hFc |
Accession Number | Q14563 |
Synonyms | sema domain, immunoglobulin domain (Ig), short basic domain, secreted, (semaphorin) 3A, COLL1, SEMAD, Hsema-I, Semaphorin 3A, SEMAIII, SEMAL, HH16, SEMA1, coll-1, Hsema-III, SemD |
Construction | A DNA sequence encoding the human SEMA3A (NP_006071.1) (Lys26-Phe546) was expressed with the Fc region of human IgG1 at the N-terminus. |
Protein Purity |
> 90 % as determined by SDS-PAGE.
|
Molecular Weight | Approxiamtely 87.7 kDa |
Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method. |
Formulation | Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA. |
Reconstitution | A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information. |
Stability & Storage |
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles. |
Shipping |
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. |
Research Background | Semaphorins are a family of secreted and cell-bound signaling molecules defined by the presence of a common 5 aa Sema domain. They are best characterized in relation to axon guidance during development of the nervous system. The functions of Semaphorins 3A (SEMA3A) are mediated primarily through binding to the Neuropilin-1 (Npn-1) and Plexin-A1 coreceptor complex. Neuropilins lack a signaling-competent cytoplasetmic domain and ensure semaphorin binding, whereas the transmembrane receptor plexin mediates the intracellular response. As the first identified vertebrate semaphorin, SEMA3A functions either as 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. Its overexpression is associated with schizophrenia which is seen in various human tumor cell lines, and aberrant release is associated with the progression of Alzheimer's disease |
bottom
Please read the User Guide of Recombinant Proteins for more specific information.
SEMA3A Protein, Human, Recombinant (hFc) sema domain, immunoglobulin domain (Ig), short basic domain, secreted, (semaphorin) 3A COLL1 HH 16 HH-16 SEMAD Hsema-I Semaphorin 3A SEMAIII SEMAL COLL 1 SEMA-1 HH16 SEMA1 coll-1 Hsema-III COLL-1 SEMA 1 SemD recombinant recombinant-proteins proteins protein