Recombinant Human Nectin-4 (NECTIN4) Protein (His), Active

Name: Recombinant Human Nectin-4 (NECTIN4) Protein (His), Active
Brand: Beta LifeScience
SKU: BLC-05785P
Price: 424.8 USD
Availability: InStock

Greater than 95% as determined by SDS-PAGE.

Activity Measured by its binding ability in a functional ELISA. Immobilized NECTIN4 at 2 μg/ml can bind anti-NECTIN4 antibody（enfortumab vedotin-like）, the EC 50 is 0.6029-0.7837 ng/mL. Biological Activity Assay

Collections: Antibody / cell therapy targets, Antibody therapeutic / adc target proteins, Featured immune checkpoint protein molecules, Immune checkpoint proteins, Recombinant proteins

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Product Overview

Description	Recombinant Human Nectin-4 (NECTIN4) Protein (His), Active is produced by our Mammalian cell expression system. This is a protein fragment.
Purity	Greater than 95% 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 NECTIN4 at 2 μg/mL can bind anti-NECTIN4 antibody（enfortumab vedotin-like）, the EC 50 is 0.6029-0.7837 ng/mL.
Uniprotkb	Q96NY8
Target Symbol	NECTIN4
Synonyms	(Ig superfamily receptor LNIR)(Nectin cell adhesion molecule 4)(Poliovirus receptor-related protein 4)
Species	Homo sapiens (Human)
Expression System	Mammalian cell
Tag	C-10His
Target Protein Sequence	GELETSDVVTVVLGQDAKLPCFYRGDSGEQVGQVAWARVDAGEGAQELALLHSKYGLHVSPAYEGRVEQPPPPRNPLDGSVLLRNAVQADEGEYECRVSTFPAGSFQARLRLRVLVPPLPSLNPGPALEEGQGLTLAASCTAEGSPAPSVTWDTEVKGTTSSRSFKHSRSAAVTSEFHLVPSRSMNGQPLTCVVSHPGLLQDQRITHILHVSFLAEASVRGLEDQNLWHIGREGAMLKCLSEGQPPPSYNWTRLDGPLPSGVRVDGDTLGFPPLTTEHSGIYVCHVSNEFSSRDSQVTVDVLDPQEDSGKQVDLVSAS
Expression Range	32-349aa
Protein Length	Partial
Mol. Weight	36.9 kDa
Research Area	Cell Biology
Form	Lyophilized powder
Buffer	Lyophilized from a 0.2 μm filtered 20 mM Tris-HCl, 0.5 M NaCl, 6% Trehalose, pH 8.0
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Seems to be involved in cell adhesion through trans-homophilic and -heterophilic interactions, the latter including specifically interactions with NECTIN1. Does not act as receptor for alpha-herpesvirus entry into cells.; (Microbial infection) Acts as a receptor for measles virus.
Subcellular Location	Cell membrane; Single-pass type I membrane protein. Cell junction, adherens junction. Note=Colocalizes with AFDN at cadherin-based adherens junctions (PubMed:11544254).; [Processed poliovirus receptor-related protein 4]: Secreted. Note=The secreted form is found in breast tumor patients (PubMed:15784625).
Protein Families	Nectin family
Database References	HGNC: 19688 OMIM: 609607 KEGG: hsa:81607 STRING: 9606.ENSP00000356991 UniGene: Hs.492490
Associated Diseases	Ectodermal dysplasia-syndactyly syndrome 1 (EDSS1)
Tissue Specificity	Predominantly expressed in placenta. Not detected in normal breast epithelium but expressed in breast carcinoma.

Gene Functions References

We suggest that Nectin-4 is a relevant prognostic factor and a therapeutic target in luminalB (HER2 negative) breast cancer. PMID: 28778498
Nectin-4 promotes cell-cell adhesion/aggregation, migration, and proliferation of ovarian tumor cells. PMID: 28038455
Nectin-4 is not only a BCSC marker but also a breast cancer metastasis marker PMID: 28600142
This study suggests that PVRL4 is post-transcriptionally regulated by miR-128 and miR-31. PMID: 27507538
High Nectin-4 expression is associated with neoplasms. PMID: 27013195
We show that Measles virus gains entry into MCF7, DLD-1, and HTB-20 cancer cells through a PVRL4-mediated macropinocytosis pathway and identified the typical cellular GTPase and kinase involved. PMID: 28250131
nectin-4 serves as a stimulatory co-receptor for the prolactin receptor by regulating the feedback inhibition of SOCS1 in the JAK2-STAT5a signaling pathway PMID: 28258213
Nectin-4 is both a new promising prognostic biomarker and specific therapeutic target for Triple-negative breast cancers PMID: 27998973
ADAM17 and ADAM10 cleave Nectin-4 and release soluble Nectin-4 (sN4). PMID: 28232483
The data presented in this study suggested that nectin-4 may be a therapeutic target for systemic lupus erythematous through affecting the cell apoptosis PMID: 26617807
Nectin-4 is critical for gallbladder cancer cell progression via PI3K/AKT pathway activation of Rac1. PMID: 26949052
Nectin-4 expression, when compared with control group, was higher in endometriotic lesions of patients having ovarian endometriosis and peritoneal endometriosis. This difference was significant in the endometrium of patients having endometriosis. PMID: 27328518
Transformation of breast cancer cells is dependent on PVRL4. PMID: 23682311
Nectin-4 is a significant prognostic predictor, and may play a critical role in pancreatic cancer. Nectin-4 may be novel therapeutic target for pancreatic cancer. PMID: 25888293
In airway epithelial cells, measles virus spread requires the nectin-4/afadin complex and is based on cytoplasm transfer between columnar cells. PMID: 25926640
The present study described clinical investigation of the EDSS1 identified in a large consanguineous family; DNA sequence analysis revealed a novel homozygous nonsense mutation (181C>T, p.Asp61*) in the PVRL4 gene. PMID: 25529316
Ovarian tissue expression and serum nectin 4 appear to be potential markers in ovarian cancer. PMID: 25019423
Authors show that the same key residues in the BC and FG loops of nectin-4 govern binding to the measles virus attachment protein hemagglutinin (H) and cell entry, nectin-4 homodimerization, and heterodimerization with nectin-1. PMID: 25275122
data outline a synergistic action of nectin-1 and -4 in the early steps of AJ formation and implicate this interaction in modulating the Rac1 signaling pathway PMID: 24577405
Ablation of nectin4 binding compromises CD46 usage by a hybrid vesicular stomatitis virus/measles virus. PMID: 24335299
Thus, while nectin-4 and CD46 interact functionally with the measles virus H protein beta4-beta5 hydrophobic groove, SLAM merely covers it. PMID: 23760251
Data suggest that expression of nectin-4 is up-regulated in eutopic endometrium of patients with endometriosis compared with control subjects. PMID: 22926846
We show that human nectin4 is fully functional as a canince distemper virus receptor. PMID: 23174504
structure of the membrane-distal domain of nectin-4 in complex with measles virus hemagglutinin (MV-H; structure shows nectin-4 binds the MV-H beta4-beta5 groove exclusively via its N-terminal IgV domain; the contact interface is dominated by hydrophobic interactions PMID: 23202587
crystals of nectin-4 diffracted to 1.8 A resolution and belonged to space group P2(1), with unit-cell parameters a = 33.1, b = 51.7, c = 56.9 A, beta = 94.7 degrees PMID: 22869128
measles virus targets nectin-4 to emerge in the airways PMID: 22048310
Measles virus infection reduced PVRL4 surface expression in MCF7 cells, a property that is characteristic of receptor-associated viral infections. PMID: 21901103
The findings of study suggest that increased expression of Nectin-4 may indicate a worse prognosis in breast cancer patients. PMID: 21526486
Sequence analysis revealed a homozygous missense mutation (c.635C>G; p.Pro212Arg) in the recently reported PVRL4 gene causing EDSS1 PMID: 21346770
Ectoderma dysplasia-syndactyly syndrome. Second example of "nectinopathy". PMID: 21333831
nectin 4 may serve as a potential biomarker that helps discriminate benign gynecologic diseases from ovarian cancer in a panel with CA125. PMID: 20959669
Ectodermal dysplasia-syndactyly syndrome is the second known "nectinopathy" caused by mutations in a nectin adhesion molecule. PMID: 20691405
the active form of TACE is overexpressed in breast tumors and may indicate that TACE is responsible for Nectin-4 shedding not only in vitro but also in vivo PMID: 15784625
Nectin-4 was not detected in normal breast epithelium; by contrast Nectin-4 was expressed in ductal breast carcinoma. PMID: 17474988
Nectin-4 might play a significant role in lung carcinogenesis, and it should be a new candidate serum and tissue biomarker, as well as a therapeutic target. PMID: 19679554

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.