Product Details

Purity

Greater than 90% as determined by SDS-PAGE.

Endotoxin

Less than 1.0 EU/ug as determined by LAL method.

Activity

Measured by its binding ability in a functional ELISA. Immobilized human SEMA4D at 2 μg/mL can bind Pepinemab, the EC₅₀ is 4.035-5.743 ng/mL.

Target Names

SEMA4D

Uniprot No.

Q92854

Research Area

Immunology

Alternative Names

(A8)(BB18)(GR3)(CD100)

Molecular Characterization

Species

Homo sapiens (Human)

Source

Mammalian cell

Expression Region

22-734aa

Target Protein Sequence

MAFAPIPRITWEHREVHLVQFHEPDIYNYSALLLSEDKDTLYIGAREAVFAVNALNISEKQHEVYWKVSEDKKAKCAEKGKSKQTECLNYIRVLQPLSATSLYVCGTNAFQPACDHLNLTSFKFLGKNEDGKGRCPFDPAHSYTSVMVDGELYSGTSYNFLGSEPIISRNSSHSPLRTEYAIPWLNEPSFVFADVIRKSPDSPDGEDDRVYFFFTEVSVEYEFVFRVLIPRIARVCKGDQGGLRTLQKKWTSFLKARLICSRPDSGLVFNVLRDVFVLRSPGLKVPVFYALFTPQLNNVGLSAVCAYNLSTAEEVFSHGKYMQSTTVEQSHTKWVRYNGPVPKPRPGACIDSEARAANYTSSLNLPDKTLQFVKDHPLMDDSVTPIDNRPRLIKKDVNYTQIVVDRTQALDGTVYDVMFVSTDRGALHKAISLEHAVHIIEETQLFQDFEPVQTLLLSSKKGNRFVYAGSNSGVVQAPLAFCGKHGTCEDCVLARDPYCAWSPPTATCVALHQTESPSRGLIQEMSGDASVCPDKSKGSYRQHFFKHGGTAELKCSQKSNLARVFWKFQNGVLKAESPKYGLMGRKNLLIFNLSEGDSGVYQCLSEERVKNKTVFQVVAKHVLEVKVVPKPVVAPTLSVVQTEGSRIATKVLVASTQGSSPPTPAVQATSSGAITLPPKPAPTGTSCEPKIVINTVPQLHSEKTMYLKSSDNR

Mol. Weight

81.9 kDa

Protein Length

Partial

Tag Info

C-terminal 10xHis-tagged

Form

Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.

Buffer

Lyophilized from a 0.2 μm filtered 20 mM Tris-HCl, 0.5 M NaCl, 6% Trehalose, pH 8.0

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Troubleshooting and FAQs

Protein FAQs

Storage Condition

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shelf Life

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Lead Time

3-7 business days

Notes

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Datasheet & COA

Please contact us to get it.

Description

Semaphorin-4D plays a pivotal role in immune cell regulation, influencing T-cell activation, B-cell responses, and tumor microenvironment remodeling through interactions with plexin receptors and CD72. This recombinant human SEMA4D fragment (aa 22–734) carries a C-terminal 10×His tag and is produced in mammalian cells to preserve native-like glycosylation and proper folding of the sema domain. Functional ELISA confirms robust binding to Pepinemab, with an EC50 of 4.035–5.743 ng/mL when immobilized at 2 μg/mL, providing a suitable basis for anti-SEMA4D antibody screening, receptor-ligand binding assays, and development of blocking-antibody characterization platforms. Purity exceeding 90% by SDS-PAGE combined with endotoxin levels below 1.0 EU/μg satisfies the criteria typical for cell-based functional assays investigating SEMA4D-mediated immune signaling and for use as a reliable reference standard in quantitative immunoassays.

Target Background

Function

Cell surface receptor for PLXNB1 and PLXNB2 that plays an important role in cell-cell signaling. Regulates GABAergic synapse development. Promotes the development of inhibitory synapses in a PLXNB1-dependent manner. Modulates the complexity and arborization of developing neurites in hippocampal neurons by activating PLXNB1 and interaction with PLXNB1 mediates activation of RHOA. Promotes the migration of cerebellar granule cells. Plays a role in the immune system; induces B-cells to aggregate and improves their viability (in vitro). Induces endothelial cell migration through the activation of PTK2B/PYK2, SRC, and the phosphatidylinositol 3-kinase-AKT pathway.

Gene References into Functions

Combined detection of tumor-associated macrophages markers, CD68 and Sema4D, in gastric carcinoma tissue shows potential to predict the trend of gastric carcinoma progression. PMID: 29434448
SEMA4D coordinates with VEGF during angiogenesis via plexin-B1 in epithelial ovarian cancer. PMID: 29308068
knockdown of Sema4D in Head and neck squamous cell carcinomas (HNSCCs)cells inhibited tumor growth and decreased the number of osteoclasts in a mouse xenograft model. Taken together, IGF-I-driven production of Sema4D in HNSCCs promotes osteoclastogenesis and bone invasion. PMID: 28656278
The results obtained make significant adjustments in understanding of Seam4D effects in lymphoid cells. PMID: 28508207
describe the transfection, purification, and visualization of Fc-tagged SEMA4D (semaphorin 4D) recombinant protein PMID: 27787840
describe the application of in vitro migration and tubulogenesis assays and the directed in vivo angiogenesis assay (DIVAA) in the measurement of the angiogenic potential of cell-derived and soluble SEMA4D PMID: 27787869
The positive expression of both Sema4D and PlexinB1 was found to be an independent risk factor for a worse survival in colorectal cancer. PMID: 27456345
Serum levels of soluble SEMA4D were elevated in patients with ANCA-associated vasculitis. Cell-surface expression of SEMA4D was downregulated, a consequence of proteolytic cleavage of membrane SEMA4D. Soluble SEMA4D exerted pro-inflammatory effects on endothelial cells. Membranous SEMA4D on neutrophils bound to plexin B2 on endothelial cells, and this interaction decreased NET formation. PMID: 28416516
We identified a novel genome-wide significant African-specific locus for BMI (SEMA4D, rs80068415). A novel variant in SEMA4D was significantly associated with body mass index. Carriers of the C allele were 4.6 BMI units heavier than carriers of the T allele. PMID: 28296344
A critical pathogenic engagement of Semaphorin 4D produced by gamma delta T cells in the development of medication-related osteonecrosis of the jaw PMID: 27720716
Our results identified FGL2, GAL, SEMA4D, SEMA7A, and IDO1 as new candidate genes that could be involved in MSCs-mediated immunomodulation. FGL2, GAL, SEMA4D, SEMA7A, and IDO1 genes appeared to be differentially transcribed in the different MSC populations. Moreover, these genes were not similarly modulated following MSCs-exposure to inflammatory signals PMID: 28336906
Interferon-alpha-induced CD100 expression on naive CD8(+) T cells enhances antiviral responses to hepatitis C infection through CD72 signal transduction. PMID: 28222623
In this review, we summarized the current findings on neuroimmune Sema4A and Sema4D molecules in chronic inflammation underlying many diseases and discussed their positive or negative impacts on the implicated molecular and cellular processes PMID: 27554682
we have identified a novel reverse signaling pathway acting through Tiam1 and Rac that promotes aggressive behavior in OSCC expressing S4D and PB1. PMID: 28038319
sema 4D was the direct target of miR-214 and was negatively regulated by miR-214 in ovarian cancer cells PMID: 26718213
Tax and semaphorin 4D released from lymphocytes infected with human lymphotropic virus type 1 and inhibit neurite growth in a neuron cell line. PMID: 26389656
This assay specifically and reproducibly measured cSEMA4D saturation and expression levels. Evaluation of the SEMA4D-specific PD markers were critical in determining the clinical saturation threshold of cSEMA4D by VX15/2503 PMID: 26566052
Serum sSema4D levels are increased in patients with atrial fibrillation and are independently associated with atrial remodeling PMID: 26417899
Semaphorin 4D Promotes Skeletal Metastasis in Breast Cancer. PMID: 26910109
this study describes a novel immunosuppressive role for Sema4D in head and neck squamous cell carcinoma through induction of myeloid derived suppressor cells PMID: 26740106
Plexin-B1 induces cutaneous squamous cell carcinoma cell proliferation, migration, and invasion by interacting with Sema4D. Plexin-B1 might serve as a useful biomarker and/or as a novel therapeutic target for cSCC. PMID: 26051877
Results show that decreased expression of Sema4D, plexin-B1 and -B2 was associated with local recurrence and poor prognosis of breast neoplasm. PMID: 26035216
Blocking of CD100, plexin B1 and/or B2 in adhesion experiments have shown that both CD100 and plexins act as adhesion molecules involved in monocyte-endothelial cell binding. PMID: 26275342
Suggest that HIF-1alpha and Sema4D expression correlates with histological tumor type, TNM stage, and lymphatic metastasis in colorectal carcinoma. PMID: 25717256
A positive feedback loop involving sSema4D/IL-6 and TNFalpha/ADAMTS-4 may contribute to the pathogenesis of rheumatoid arthritis. PMID: 25707877
Sema4D contributes to enhanced invasion and tumor progression through increased motility of cervical cancer and VEGF-C/-D-mediated lymphangiogenesis. PMID: 24603190
SEMA4D might possibly serve as a reliable tool for early and accurate prediction of EOC poor prognosis. PMID: 24289594
results suggest that the contribution of Sema4D in platelets applies to ITAM-containing receptors as a class PMID: 24131822
Sema4D could play an important role in promoting tumor proliferation, migration and metastasis in the NSCLC, by influencing the Akt protein phosphorylation. Inhibition of Sema4D may be a useful approach for the treatment of NSCLC. PMID: 25135716
Data suggest that CD100 seems to be involved in hepatitis C virus (HCV) clearance by natural killer (NK) cells. PMID: 25108441
The Semaphorin 4D-Plexin-B1-RhoA signaling axis recruits pericytes and regulates vascular permeability through endothelial production of PDGF-B and ANGPTL4. PMID: 24114199
Elevated plasma soluble Sema4D/CD100 levels are associated with disease severity in patients of hemorrhagic fever with renal syndrome. PMID: 24040126
CD100 may have a role in atherosclerotic plaque development, and may possibly be employed in targeted treatments of these atheromas. PMID: 24098722
There was an increased level of plasma soluble Sema4 in the Sema4D(high) population of T-cells suggesting a potential role of these T-cells in heart failure. PMID: 23741311
The membrane-proximal cytoplasmic domain of Sema4D contains a binding site for calmodulin within the polybasic region Arg762-Lys779, that regulates Sema4D exodomain shedding in platelets. PMID: 23564909
copy number loss of the Sema4D gene region may play a role in the etiology of acetabular dysplasia PMID: 23335257
Lycorine hydrochloride suppressed the expression of several key angiogenic genes, including VE-cadherin and Sema4D, and reduced Akt phosphorylation in Hey1B cells. PMID: 23376478
CD72 mRNA expression level correlates with Sema4D expression in peripheral blood mononuclear cells in immune thrombocytopenia. PMID: 22111667
CD100 protein levels were highly dysregulated around 10 weeks of gestation in first and second miscarriage placentas. The CD100 soluble form was produced and immediately shed from placental tissue in all samples. PMID: 22606231
The expression of semaphorin 4D (SEMA4D), which is under the control of the HIF-family of transcription factors, cooperates with VEGF to promote tumor growth and vascularity in oral squamous cell carcinoma (OSCC). PMID: 22652457
Sema4D, the ligand for Plexin B1, suppresses c-Met activation and migration and promotes melanocyte survival and growth. PMID: 22189792
Sema4D potentiates the invasiveness of pancreatic cancer cells. The binding of Sema4D to plexinB1 induced small GTPase Ras homolog gene family, member A activation and resulted in the phosphorylation of MAPK and Akt. PMID: 21812859
From the data obtained in this study, SEMA4D may have a role in more aggressive and potentially metastatic breast tumours. PMID: 21925246
Rho-mediated activation of PI(4)P5K and lipid second messengers is necessary for promotion of angiogenesis by Semaphorin 4D. PMID: 21538148
dysregulations in CD100 expression and release could play a role in SSc development and/or maintenance. PMID: 21244334
crystal structures of cognate complexes of the semaphorin-binding regions of plexins B1 and A2 with semaphorin ectodomains (human PLXNB1(1-2)-SEMA4D(ecto) and murine PlxnA2(1-4)-Sema6A(ecto)), plus unliganded structures of PlxnA2(1-4) and Sema6A(ecto) PMID: 20877282
CD100-CD72 interaction can be the mechanism by which NK cell communicate with B cells. PMID: 17786190
Leukemic & normal CD5+ B cells express CD100; upon interaction between CD100 & Plexin-B1, both increase their proliferative activity & life span. CD100/Plexin-B1 crosstalk is not malignancy related but reproduces a mechanism used by normal CD5+ B cells. PMID: 12406905
Soluble CD100 induces a progressive decrease in process extension of oligodendrocytes, followed by their death and the death of multipotent neural precursors. PMID: 14707103
up-modulation of the survival receptor CD100 is restricted to proliferating B-cell leukemia cells PMID: 15613544

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Subcellular Location

Cell membrane; Single-pass type I membrane protein.

Protein Families

Semaphorin family

Tissue Specificity

Strongly expressed in skeletal muscle, peripheral blood lymphocytes, spleen, and thymus and also expressed at lower levels in testes, brain, kidney, small intestine, prostate, heart, placenta, lung and pancreas, but not in colon and liver.

Database Links

HGNC: 10732

OMIM: 601866

KEGG: hsa:10507

STRING: 9606.ENSP00000348822

UniGene: Hs.494406

Code	CSB-MP835707HU
Abbreviation	Recombinant Human SEMA4D protein, partial (Active)
MSDS	MSDS Datasheet
Size	$9.9
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Image	(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel. Activity Measured by its binding ability in a functional ELISA. Immobilized human SEMA4D at 2 μg/ml can bind Pepinemab, the EC₅₀ is 4.035-5.743 ng/mL. Biological Activity Assay
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Recombinant Human Semaphorin-4D (SEMA4D), partial (Active)

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