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Synonyms
SEMA4D, C9orf164, CD100, FLJ33485, FLJ34282, FLJ39737, FLJ46484, M-sema-G, MGC169138, MGC169141, SEMAJ, coll-4, Semaphorin-4D
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Alternative_names
SEMA4D, C9orf164, CD100, FLJ33485, FLJ34282, FLJ39737, FLJ46484, M-sema-G, MGC169138, MGC169141, SEMAJ, coll-4, Semaphorin-4D
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Description
Involved in oligodendrogenesis during development and during recovery from ischemic injury.
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Recombinant
Yes
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Source
HEK293 cells
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Purity by SDS PAGE
≥95%
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Assay
SDS-PAGE
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Biological activity
Measured by its ability to promote the survival and differentiation of human peripheral blood monocytes. The ED50 for this effect is typically 2.0-6.3 ug/ml.
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Results
Measured by its ability to promote the survival and differentiation of human peripheral blood monocytes. The ED50 for this effect is typically 2.0-6.3 ug/ml.
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Molecular Weight
This protein is fused with Fc fragment of human IgG1 at the C-terminus, has a calculated MW of 105.4 kDa expressed. The predicted N-terminus is Met 22. Protein migrates as 120-140 kDa in reduced SDS-PAGE due to glycosylation.
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Storage Temp
-20°C
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Shipping
Gel Pack
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Shelf Life
12 months
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Appearance
Lyophilized
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Physical form description
Lyophilized from 0.22 um filtered solution in 50 mM tris, 100 mM glycine, pH 7.0. Normally Mannitol or Trehalose is added as protectants before lyophilization.
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Reconstitution Instructions
Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.
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Background Information
Cluster of Differentiation 100 (CD100), also known as Semaphorin-4D (SEMA4D), is a single-pass type I membrane protein which belongs to the semaphorin family, and is a human 150-kDa homodimer expressed at the surface of most hemopoietic cells. Semaphorin genes encode soluble and membrane-bound proteins, most of which have been shown to act as chemorepellents on growth cone guidance. CD100 is discrete, as it is a transmembrane leukocyte surface molecule that can also exist in a soluble form. Semaphorin 4D (Sema 4D) is an axon guidance molecule which is secreted by oligodendrocytes and induces growth cone collapse in the central nervous system. By binding plexin B1 receptor it functions as an R-Ras GTPase-activating protein (GAP) and repels axon growth cones in both the mature central nervous system. In the immune system, CD100 binds CD72 to activate B cells and dendritic cells, though much about this interaction is still under investigation. It is involved in oligodendrogenesis during development and during recovery from ischemic injury.
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Handling
Centrifuge the vial prior to opening.
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Usage
For Research Use Only! Not to be used in humans
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Properties
Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.
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Additional source
Recombinants or rec. proteins
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Group
recombinants
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Gene target
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Gene symbol
SEMA4D
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Short name
CellExp™ SEMA4D /CD100, recombinant
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Technique
Recombinant, E. coli recombinant proteins are genetic recombinations in Escherichia coli, supplied as white sterile powder lyopillized. Biovision advises they will be reconstituted in a buffer soluion or culture medium for cell culture.
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Species
Humans
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Alternative name
H. sapiens CellExp™ sema domain, immunoglobulin domain (Ig), transmembrane domain (TM) and short cytoplasmic domain, (semaphorin) 4D /CD100, H. sapiens Rec.
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Alternative technique
rec
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Alternative to gene target
sema domain, immunoglobulin domain (Ig), transmembrane domain (TM) and short cytoplasmic domain, (semaphorin) 4D, C9orf164 and CD100 and coll-4 and M-sema-G and SEMAJ, SEMA4D and IDBG-75424 and ENSG00000187764 and 10507, semaphorin receptor binding, Extracellular, Sema4d and IDBG-152500 and ENSMUSG00000021451 and 20354, SEMA4D and IDBG-637043 and ENSBTAG00000001941 and 785942
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