Recombinant Human C-X-C Motif Chemokine 11 Protein (CXCL11), Active

Name: Recombinant Human C-X-C Motif Chemokine 11 Protein (CXCL11), Active
Brand: Beta LifeScience
SKU: BLC-05526P
Availability: InStock

Collections: All products, Buy cytokines, chemokines, and growth factors for research online, Chemokines and receptors – essential regulators of immune response, High-quality cytokines for advanced research, High-quality recombinant proteins

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Product Overview

Description	Recombinant Human C-X-C Motif Chemokine 11 Protein (CXCL11), Active is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 97% as determined by SDS-PAGE and HPLC.
Endotoxin	Less than 1.0 EU/μg as determined by LAL method.
Activity	Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human IL-2 activated human T-lymphocytes is in a concentration range of 0.1-10 ng/ml.
Uniprotkb	O14625
Target Symbol	CXCL11
Synonyms	b R1; b-R1; Beta-R1; betaR1; C-X-C motif chemokine 11; Chemokine (C-X-C motif) ligand 11; Chemokine C-X-C motif ligand 11; CXC11; CXCL11; CXL11_HUMAN; H174; I TAC; I-TAC; Interferon gamma inducible protein 9; Interferon gamma-inducible protein 9; Interferon inducible T cell alpha chemoattractant; Interferon-inducible T-cell a chemoattractant I-TAC; Interferon-inducible T-cell alpha chemoattractant; IP 9; IP-9; IP9; ITAC; MGC102770; SCYB11; SCYB9B; Small inducible cytokine B11; Small inducible cytokine subfamily B (Cys-X-Cys) member 11; Small inducible cytokine subfamily B (Cys-X-Cys) member 9B; Small inducible cytokine subfamily B; member 11; Small inducible cytokine subfamily B; member 9B; Small-inducible cytokine B11
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	Tag-Free
Complete Sequence	FPMFKRGRCL CIGPGVKAVK VADIEKASIM YPSNNCDKIE VIITLKENKG QRCLNPKSKQ ARLIIKKVER KNF
Expression Range	22-94aa
Protein Length	Full Length of Mature Protein
Mol. Weight	8.3 kDa
Research Area	Immunology
Form	Lyophilized powder
Buffer	Lyophilized from a 0.2 µm filtered PBS, pH 7.4
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	Chemotactic for interleukin-activated T-cells but not unstimulated T-cells, neutrophils or monocytes. Induces calcium release in activated T-cells. Binds to CXCR3. May play an important role in CNS diseases which involve T-cell recruitment. May play a role in skin immune responses.
Subcellular Location	Secreted.
Protein Families	Intercrine alpha (chemokine CxC) family
Database References	HGNC: 10638 OMIM: 604852 KEGG: hsa:6373 STRING: 9606.ENSP00000306884 UniGene: PMID: 29901202 BK polyomavirus infection can induce CXCL11 gene expression in kidney transplant patients. PMID: 27759557 CXCL11 production in cerebrospinal fluid was found in herpes simplex meningitis, but not in herpes simplex encephalitis. PMID: 28693588 Neuroendocrine-like cells promote the chemotaxis activity of tumor-associated macrophages (TAM) via CXCL10 and CXCL11. PMID: 27034164 High CXCL11 expression is associated with clear-cell renal cell carcinoma. PMID: 26910919 this study shows that melanoma peptides vaccination and intratumoral administration of IFNgamma increases production of CXCL11 in patient tumors PMID: 27522581 Downregulation of CXC chemokine ligand 11 can inhibit tumor angiogenesis, suggesting that anti-CXC chemokine ligand 11 therapy may offer an alternative treatment strategy for TWIST1-positive ovarian cancer PMID: 28488542 CXCL8/11 may promote the disease progression of osteoarthritis (OA), and may also serve as new therapeutic targets for treatment of OA. PMID: 27567247 this study shows that oxidative signaling inhibits T lymphocyte chemotaxis to the inflammatory chemokine CXCL11 PMID: 28363904 The homozygous variant CXCL11 AA genotype (rs6817952) is associated with an increased risk of contact allergy. PMID: 27356947 In contrast to elevated 1st trimester levels of IP-10 previously found in the maternal serum of women who later developed preeclampsia, this study found lower umbilical cord IP-10 and ITAC plasma levels in near-term gestations with established severe preeclampsia. PMID: 25741937 CXCL11 levels are mainly increased in patients with non-alcoholic cirrhosis and high portal pressure. Moreover, levels of CXCL11 might predict long-time survival of cirrhotic patients undergoing TIPS. PMID: 26212075 higher concentration is associated with neutrophils accumulation in the alveolar space of Systemic Lupus Erythematosus patients with pulmonary fibrosis PMID: 26275808 Developmental expression patterns of chemokines CXCL11, CXCL12 and their receptor CXCR7 in testes PMID: 25810367 congruent with the concept that inflammation plays a key role in the pathogenesis of LV dysfunction, MIG, IP10 and I-TAC add diagnostic accuracy over and beyond NT-pro BNP. PMID: 26506526 Resveratrol substantially inhibited the proinflammatory cytokines-induced CXCL11 production while partially blocking nuclear factor-kappaB activation. PMID: 25890876 Common variants of CXCR3 and its ligands CXCL10 and CXCL11 are associated with vascular permeability of dengue infection in peninsular Malaysia. PMID: 25858769 Cyclic stretch significantly induced ESC secretion of CXCL8 and CXCL1 and neutrophil chemotaxis. Stretch also increased MMP-1, MMP-2, and MMP-3 activity, activin A secretion, and activity in ESC. PMID: 25605062 High CXCL11 expression is associated with acute cellular rejection. PMID: 25251331 These findings functionally integrate K17, hnRNP K, and gene expression along with RSK and CXCR3 signaling in a keratinocyte-autonomous axis and provide a potential basis for their implication in tumorigenesis PMID: 25713416 The homozygosity for the CXCL9 rs10336 (T), CXCL10 rs3921 (G), and CXCL11 rs4619915 (A) alleles is associated with the higher likelihood of significant liver fibrosis in HIV-infected patients coinfected with hepatitis C virus genotype 1. PMID: 25559603 The chemokine CXCL11 is produced by mesenchymal stem cells and interacts with CXCR3. PMID: 24526602 CXCL11 displays antimicrobial activity against E. coli and S. aureus. PMID: 12949249 The expression of MIF mRNA was compared with VEGF mRNA expression and with mRNA expression of other chemokines related to neo-angiogenesis, such as CXCL12, CXCL11, CXCL8 and CXCR4, in human endometrial cancer tissue and normal endometrium. PMID: 23985752 CXCL11 was mildlylavage fluid during diffuse alveolar damage, but not during acute rejection or lymphocytic bronchiolitis. Elevated CXCL11 was associated with increased risk of chronic allograft dysfunction. PMID: 24063316 Our study demonstrates in mixed cryoglobulinemia and hepatitis C vs controls: (i)high serum CXCL9 and CXCL11, significantly associated with the presence of active vasculitis; (ii) a strong relationship between circulating CXCL9 and CXCL11 PMID: 23527708 CXCR3 ligands CXCL10, CXCL9 and CXCL11 were measured in 245 children with opsoclonus-myoclonus syndrome and 81 controls. PMID: 23600831 There was no difference in expression of I-TAC between immune thrombocytopenic purpura patients and healthy controls. PMID: 23158864 Expression of CXCL9, -10, and -11 chemokines and their receptor CXCR3 increases in the aqueous humor of patients with herpetic endotheliitis. PMID: 22367045 This study demonistrated that CXCL11, absent from normal muscle fibers, were induced in DMD myofibers. and up regulattion on blood vessel endothelium of DMD patients. PMID: 23225384 Our study first demonstrates higher serum levels of CXCL11 chemokine in patients with mixed cryoglobulinemia than in hepatitis C virus-positive patients, and in particular in the presence of autoimmune thyroiditis. PMID: 22160826 In chronic graft-vs-host disease, increased levels of the Th1-associated chemokines CXCL9, CXCL10, and CXCL11 led to recruitment of CXCR3+ T cells from the peripheral blood into affected tissues. PMID: 23012327 Elevated BALF concentrations of CXCL11 in systemic sclerosis patients who do not developed lung fibrosis suggest that determination of CXCL11 in BALF could serve as a prognostic factor for pulmonary function decline. PMID: 22691213 CXCL10, CXCL11, CXCL12 and CXCL13 chemokines are biomarkers in serum and cerebrospinal fluid in patients with tick borne encephalitis PMID: 22008312 A strong relationship between circulating IFN-gamma and CXCL11 is shown, supporting the role of a T helper (Th)1 cell immune response in the pathogenesis of mixed cryoglobulinemia and hepatitis C. PMID: 21724697 circulating CXCL11, together with CXCL10, is increased in patients with thyroiditis and hypothyroidism, and is related to CXCL10 levels. PMID: 22168752 Elevated plasma levels of interferon-gamma and Cys-X-Cys chemokine receptor 3-binding chemokine CXCL11 are present in patients with thoracic aortic aneurysms. PMID: 21962843 CXCR3 ligands, CXCL9,10,11, are differentially expressed during chronic liver diseases across different disease stages and aetiologies. PMID: 21645215 We first show that circulating CXCL9 and CXCL11 are increased in patients with thyroiditis and hypothyroidism and are related to each other. PMID: 21470996 involved in microbial-induced intestinal inflammation and Th17 cell development in ulcerative colitis PMID: 21438871 A potent dose-dependent inhibition by PPARalpha-agonists was observed on the cytokines-stimulated secretion of CXCL11 in Graves disease and in primary thyrroid culture. PMID: 20810571 The expression and function of CXCR3 and CXCR7 receptors in cervical carcinoma, rhabdomyosarcoma and glioblastoma cell lines, was evaluated. PMID: 20529825 Studies indicate that CXCR7 is an interceptor for CXCL12 and CXCL11. PMID: 20036838 TNFSF14 enhanced IFN-gamma-induced secretion of CXCL10 and CXCL11 from human gingival fibroblasts. PMID: 19939453 Studies indicate that I-TAC-targeted intervening strategies would have potential application for the alleviation of acute transplant rejection. PMID: 19875106 I-TAC is a highly potent chemoattractant of normal blood CD4 and CD8 T cell transendothelial migration and a major mediator of blood memory T lymphocyte migration to inflammation. PMID: 12055261 The IFN-gamma-inducible T cell alpha-chemoattractant was induced in human brain microvascular endothelial cells and astrocytes only after inflammatory stimuli. PMID: 12162873 These data suggest that IFN-beta acts through PI3K to enhance the transactivation competence of NF-kappa B complexes through phosphorylation of p65 within the TAD of beta-R1. PMID: 12169689 Levels of ITAC/CXCL11 were found elevated in patients with severe transplantation coronary artery disease (TCAD) compared with long-term survivors of transplantation without TCAD and healthy volunteers who had not undergone transplantation PMID: 12695288 increased calpain activity in undifferentiated keratinocytes. inhibited calpain activity in fibroblasts. redifferentiated basal keratinocytes limit fibroblast repopulation of dermis of healed wounds while promoting re-epithelialization. PMID: 12787142

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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.

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