Synthetic Human C3 Protein (Biotin)

Collections: Complement components, Cytokines and growth factors, Recombinant proteins

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Product Overview

Host Species	Human
Accession	P01024
Synonym	Acylation stimulating protein cleavage product AHUS5 ARMD9 ASP C3 C3 and PZP like alpha 2 macroglobulin domain containing protein 1 C3 and PZP-like alpha-2-macroglobulin domain-containing protein 1 c3 complement C3adesArg CO3_HUMAN Complement C3 Complement C3 alpha chain Complement C3b alpha' chain Complement C3c alpha' chain fragment 1 Complement C3c alpha' chain fragment 2 Complement C3c alpha'' chain fragment 2 Complement C3d fragment Complement C3dg fragment Complement C3f fragment Complement C3g fragment Complement component 3 Complement factor 3 CPAMD1 HEL S 62p omplement C3 beta chain
Description	Synthetic Human C3 Protein (Biotin) was expressed in Synthetic. It is a Protein fragment
Source	Synthetic
AA Sequence	Biotin-SVQLTEKRMD KVGKYPKELR KCCEDGMREN PMRFSCQRRT RFISLGEACK KVFLDCCNYI TELRRQHARA SHLGLAR
Molecular Weight	9 kDa
Endotoxin	< 1.0 EU per μg of the protein as determined by the LAL method
Formulation	Lyophilised
Stability	The recombinant protein samples are stable for up to 12 months at -80°C
Reconstitution	See related COA
Unit Definition	For Research Use Only
Storage Buffer	Shipped at 4°C. Store at -20°C or -80°C. Avoid freeze / thaw cycle.

Target Details

Target Function	C3 plays a central role in the activation of the complement system. Its processing by C3 convertase is the central reaction in both classical and alternative complement pathways. After activation C3b can bind covalently, via its reactive thioester, to cell surface carbohydrates or immune aggregates.; Derived from proteolytic degradation of complement C3, C3a anaphylatoxin is a mediator of local inflammatory process. In chronic inflammation, acts as a chemoattractant for neutrophils. It induces the contraction of smooth muscle, increases vascular permeability and causes histamine release from mast cells and basophilic leukocytes.; Acts as a chemoattractant for neutrophils in chronic inflammation.; adipogenic hormone that stimulates triglyceride (TG) synthesis and glucose transport in adipocytes, regulating fat storage and playing a role in postprandial TG clearance. Appears to stimulate TG synthesis via activation of the PLC, MAPK and AKT signaling pathways. Ligand for C5AR2. Promotes the phosphorylation, ARRB2-mediated internalization and recycling of C5AR2.
Subcellular Location	Secreted.
Database References	HGNC: 1318 OMIM: 120700 KEGG: hsa:718 STRING: 9606.ENSP00000245907 UniGene: Hs.529053
Associated Diseases	Complement component 3 deficiency (C3D); Macular degeneration, age-related, 9 (ARMD9); Hemolytic uremic syndrome atypical 5 (AHUS5)
Tissue Specificity	Plasma. The acylation stimulating protein (ASP) is expressed in adipocytes and released into the plasma during both the fasting and postprandial periods.

Gene Functions References

Evasion of C3b deposition at division septa and lateral amplification underneath the capsule requires localization of the FH-binding protein PspC at division sites. PMID: 30139996
Clinical Manifestation of Patients With Atypical Hemolytic Uremic Syndrome With the C3 p.I1157T Variation in the Kinki Region of Japan. PMID: 29695177
In our meta-analysis, C3 genetic polymorphisms unveiled a positive effect on the risk of advanced age-related macular degeneration, especially in Caucasians PMID: 30352574
Case Report: recurrent proliferative glomerulonephritis with persistent isolated C3 deposition. PMID: 29968411
A phage Ab against C3b that inhibited the alternative complement pathway, but not the classical pathway, was described in 2009. Studies using this Ab in a variety of assays have now demonstrated that it acts primarily by inhibiting tickover, thereby confirming that tickover really exists. PMID: 28855277
Anti-HLA class I and class II C3d-binding donor-specific antibodies carried a twofold and 1.5-fold increased risk of kidney graft loss, respectively. PMID: 29265514
Study shows no significant association of the C3 gene with uveitis, suggesting C3 confers either no or limited risk for uveitis susceptibility. PMID: 28408754
Here we have shown for the first time, that ligand- or insulin-mediated activation of PPARgamma in human hepatoma cell line HepG2 causes the downregulation of C3 gene expression and protein secretion PMID: 29550264
Single Nucleotide Polymorphism rs11569514 in C3 and haplotypes of C3 variants were associated with schizophrenia in a Han Chinese population. PMID: 29742493
alphaXbeta2 uses the alphaX alphaI domain to bind iC3b on its C3c moiety at one of two sites. PMID: 28292891
findings revealed a significant association between variant p.R102G in complement component C3 gene with exudative age-related macular degeneration in the Tunisian population PMID: 28470643
SNPs within the complement genes may contribute to IA, the first step to type 1 diabetes, with at least one SNP in C3 significantly associated with clinically diagnosed type 1 diabetes. PMID: 27306948
An increase in serum C4, as well as a decrease in C3, was an important outcome determinant for patients with immunoglobulin A nephropathy. PMID: 28697742
rituximab was not effective in few cases of complement-mediated C3 glomerulonephritis and dense deposit disease . Despite promising results in immunoglobulin-associated and idiopathic Membranoproliferative glomerulonephritis, current evidence on this treatment remains weak, and controlled and prospective data are urgently needed. PMID: 28573137
C3F polymorphism is associated with viral infections and protection from rejection after liver transplantation. PMID: 27801525
Pra1 targets C3 by cleaving C3 at a unique site. This inhibited effector function of the activation fragments. The newly formed C3a-like peptide lacked the C-terminal arginine residue needed for C3a-receptor binding and activation. Pra1 also bound to C3a and C3b generated by human convertases and blocked their effector functions, C3a binding to human C3a receptor, C3 antifungal activity, and C3b deposition. PMID: 28860090
data provide the first evidence that T17M rhodopsin mutant disrupts C3 secretion via the induction of ROS and the suppression of TWIST1. PMID: 28569420
High C3 was significantly associated with incidence of diabetes after risk factor adjustments PMID: 29029276
This study enclosed strong synergistic association of risk genotypes of C3 and CFH Y402H with AMD. We also revealed synergistic influence of CCL2-2518 and the at-risk genotype of the C3 in AMD with an estimated AP = 50.9% (adjusted AP = 24.7%). Present findings show that CCL2-2518 polymorphism is not an innocent bystander in AMD susceptibility when combined with the at-risk genotype of C3 (R102G). PMID: 28095095
Our study shows C3 to be a relatively strong susceptibility gene for advanced-type-AMD (exudative-and-geographic-atrophy) in an Iranian population. PMID: 27029644
BBB disruption is present in ACS, and elevated levels of IL-6 and C3 in CSF in diffuse NPSLE PMID: 29036223
mobilizes dental pulp stem cells and specifically guides pulp fibroblast recruitment PMID: 27497510
This study uncovers the origin of the effect of ionic strength on C3d-CR2 interaction and deepens the understanding of the molecular mechanism of their interaction, which is valuable for the design of vaccines and small molecule inhibitors. PMID: 27154286
Studies indicate that the complement response lie the active fragments, C3a and C5a, acting through their specific receptors, C3aR, C5aR1 and C5aR2 to direct the cellular response to inflammation. PMID: 28576324
Plasma C3b levels are significantly increased in thrombotic microangiopathy patients after allogeneic stem cell transplantation. PMID: 28801815
Findings indicate that recognition of C3-opsonized Francisella tularensis, but not extensive cytosolic replication, plays an important role in regulating macrophage viability during intracellular infections with type A F. tularensis. PMID: 28739830
exposure of neural stem cells to neutrophil-synthesized concentrations of C1q and C3a promoted astrogliogenesis and cell migrationtion. PMID: 28687659
THP appears to participate directly in complement inactivation by its ability to act as a cofactor for C3b degradation. PMID: 28742158
These data suggest that locally produced C3 is an important prosurvival mechanism in pancreatic beta-cells under a proinflammatory assault. PMID: 28582497
many types of human cells specifically internalized C3(H2O), the hydrolytic product of C3, and not native C3, from the extracellular milieu. PMID: 28192370
Decreased C5a expression is associated with increased inflammation in cystic fibrosis. PMID: 28278205
Results show that expression of C3 was significantly increased in tumors from patients having a poor response to chemoradiation therapy. PMID: 27254108
C3d-positive glomerular staining is an independent risk factor for the development of end-stage renal disease in ANCA-associated renal vasculitis. PMID: 27257040
Factor I binds C3b-Factor H between Factor H domains 2 and 3 and a reoriented C3b C-terminal domain and docks onto the first scissile bond, while stabilizing its catalytic domain for proteolytic activity. PMID: 28671664
The VEGF haplotype TGA could be used as a marker for poor visual prognosis in Tunisian patients with neovascular AMD treated with bevacizumab. PMID: 27116510
C3 SNP rs2277984 may be a potential biomarker for predicting metabolic syndrome risk in patients receiving clozapine treatment. PMID: 26503818
Strikingly C3, the central component of complement, plays a crucial role in the adherence of Brugia malayi to vascular endothelial cells. PMID: 28481947
The uromodulin-CFH interaction enhanced the cofactor activity of CFH for factor I-mediated cleavage of C3b to inactivated C3b. PMID: 27113631
Generated monoclonal antibody that can only bind to C3d when it manifests itself as the final end product of cleaved C3. PMID: 28174050
C3 was strongly associated with insulin sensitivity after bariatric surgery. PMID: 28188738
Study reveals structural differences and similarities between C3(H2O), its progenitor C3, and its functional analogue C3b. Data suggest that C3(H2O) generation is accompanied by the migration of the thioester-containing domain of C3 from one end of the molecule to the other. PMID: 27250206
human neutrophil peptides 1-3 and complement activation fragments iC3b were higher in patients with acute thrombotic thrombocytopenic purpura - indicating a role of innate immunity in acute autoimmune TTP. PMID: 27662014
The data suggest a common evolutionary origin for both inhibitory mechanisms, called decay acceleration and cofactor activity, with variable C3b binding through domains at sites ii, iii, and iv, and provide a framework for understanding regulators of complement activation (RCA) disease-related mutations and immune evasion. PMID: 27013439
CFH, ARMS2, and C3 were associated with specific features of neovascularization at the time patients were enrolled in Comparison of Age-Related Macular Degeneration Treatments Trials . PMID: 27099955
Elevated C3a is able to predict the mortality following cardiac resynchronization therapy of heart failure PMID: 27492980
Decreased serum C3 may have a role in renal pathology classification for patients with silent but not with overt lupus nephritis PMID: 27900491
Decreased transcription of C3R mRNA was found in patients with Type 2 Diabetes as compared to non-diabetics. PMID: 27291248
analyzed C5 c.2654G>A and C3 gene polymorphism in 220 Chinese patients PMID: 27307199
this paper shows that chymase may control C3-related pathology in cutaneous vasculitis PMID: 27465068
Case Report: severe active C3 glomerulonephritis triggered by immune complexes treated with eculizumab. PMID: 27717365

FAQs

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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.