1. Recombinant Proteins
  2. Cytokines and Growth Factors
  3. Chemokine & Receptors
  4. CXC Chemokines
  5. CXCL6
  6. GCP-2/CXCL6 Protein, Human (HEK293, His)

CXCL6 (also known as granulocyte chemotactic protein-2, GCP-2), a member of the ELR+ CXC chemokine family, is a chemoattractant for neutrophilic granulocytes and initiates chemotaxis through the chemokine receptors CXCR1 and CXCR2. CXCL6 exerts neutrophil-activating and angiogenic activities, and has antibacterial action against Gram-negative and Gram-positive bacteria. GCP-2/CXCL6 Protein, Human (HEK293, His) is produced in HEK293 cells with six C-Terminal His-tags. It consists of 77 amino acids (G38-N114).

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10 μg USD 110 In-stock
50 μg USD 326 In-stock
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Description

CXCL6 (also known as granulocyte chemotactic protein-2, GCP-2), a member of the ELR+ CXC chemokine family, is a chemoattractant for neutrophilic granulocytes and initiates chemotaxis through the chemokine receptors CXCR1 and CXCR2[1][2]. CXCL6 exerts neutrophil-activating and angiogenic activities, and has antibacterial action against Gram-negative and Gram-positive bacteria[3]. GCP-2/CXCL6 Protein, Human (HEK293, His) is produced in HEK293 cells with six C-Terminal His-tags. It consists of 77 amino acids (G38-N114).

Background

CXCL6 (also known as GCP-2) is a CXC chemokine expressed by macrophages and epithelial and mesenchymal cells during inflammation. Through binding and activation of its receptors (CXCR1 and CXCR2), it exerts neutrophil-activating and angiogenic activities. In addition, CXCL6 also has antibacterial effects[1][3].
CXCL6 is an ELR-positive CXC chemokine with a length of 77 amino acids. The NH2-terminal glutamic acid-leucine-arginine (ELR) motif is characteristic of CXC chemokines interacting with the G-protein-coupled receptors CXCR1 and CXCR2. The ELR+ CXC family which includes IL-8, the growth-regulated oncogenes (GRO-α,-β-γ), and ENA-78. The structure of CXCL6 is >75% homologous to ENA-78, but is unique in that it binds with high-affinity to both CXCR1 and CXCR2. GCP-2, similar to IL-8, activates target cells by binding to CXCR-1 and CXCR-2. Both receptors are expressed by neutrophil granulocytes, but not by other blood-derived cells, such as lymphocytes or monocytes. Activation of endothelial cells by CXCL6 causes a mitogenic response, resulting in angiogenesis. CXCL2 is expressed by epithelial cells of the airways, eyes, gastrointestinal tract, mammary glands, tonsils, macrophages, and mesenchymal cells, in particular during inflammation. Lipopolysaccharides (LPS) and the proinflammatory cytokines TNF-α and IL-1β up-regulate the expression of CXCL6, while gamma interferon has a down-regulating effect[1][2][3].
CXCL6 mediates several processes such as inflammation, immunoreaction, cell growth, and metastasis through interaction with the chemokine receptors CXCR1 and CXCR2 in humans. CXCL6 possesses potent chemotactic and proangiogenic properties. CXCL6 is over expressed in colorectal, breast, lung and thyroid cancers. In addition, CXCL6 shows antibacterial activity against gram-positive and gram-negative pathogenic bacteria of relevance to mucosal infections is seen at submicromolar concentrations[1][2][3].

In Vitro

Recombinant CXCL6 (10 ng/mL) significantly inhibits both Sirt3 mRNA and protein levels, however, the AKT and FOXO3a phosphorylation significantly increased in human brain microvascular endothelial cells (HBMECs)[2].
Recombinant human CXCL6 (0 ng/mL, 0.1 ng/mL, 1 ng/mL, 10 ng/mL, 10 ng/mL; 72 h) elicites enhanced proliferation of HUVECs in a dose-dependent manner, and co-culture with fibroblasts caused significantly enhanced HUVEC proliferation. Recombinant CXCL6 also promotes the proliferation of HUVECs in a concentration-dependent manner[4].
Recombinant human CXCL6 (0 ng/mL, 0.1 ng/mL, 1 ng/mL, 10 ng/mL, 10 ng/mL; 24 h) significantly promotes cancer cell invasion in HT-29 cells[4].

Species

Human

Source

HEK293

Tag

C-6*His

Accession

P80162 (G38-N114)

Gene ID
Molecular Construction
N-term
CXCL6 (G38-N114)
Accession # P80162
6*His
C-term
Synonyms
C-X-C motif chemokine 6; CKA-3; GCP-2; CXCL6; GCP2; SCYB6
AA Sequence

GPVSAVLTELRCTCLRVTLRVNPKTIGKLQVFPAGPQCSKVEVVASLKNGKQVCLDPEAPFLKKVIQKILDSGNKKN

Molecular Weight

Approximately 13 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE.

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, 5% Trehalose, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation
References

GCP-2/CXCL6 Protein, Human (HEK293, His) Related Classifications

Help & FAQs
  • How should lyophilized recombinant proteins be reconstituted and stored?

    1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss. 2. Taking 10 μg as an example, first add 20 μL of reconstituted solution provided by MCE and use a pipette to gently resuspend the lyophilized protein until it is fully dissolved.. (For most proteins, the reconstitution solution we provide is sterile water. If a diluent other than water is required, it will be indicated in the product's Certificate of Analysis (COA).). 3. Add an additional 80 μL of buffer/culture medium containing carrier protein (either 0.1% BSA, 5% HSA, 10% FBS, or 5% trehalose), and then use a pipette to gently mix until uniform. The final concentration is should not be lower than 100 μg/mL. 4. Aliquot at least 20 μL per tube. 5. After aliquoting, store it frozen at a temperature ranging from -20ºC to -80ºC, and it can be preserved for 3 to 6 months.

  • How should solution-form recombinant proteins be stored?

    1. The product can be stored in its original form and diluted as needed upon use. 2. Alternatively, dilute with a buffer/culture medium containing a carrier protein (either 0.1% BSA, 5% HSA, 10% FBS, or 5% alginate), mix well by pipetting, and ensure that

  • Why is it necessary to add carrier proteins?

    Carrier proteins are commonly added to enhance the stability of recombinant proteins, preventing them from adhering to the walls of the container during freezing or thawing processes. Plastic tubes have a certain adsorptive capacity for proteins, which may lead to difficulty in separating the protein from the tube walls, resulting in a decrease in the actual concentration of the protein in the solution and thus affecting its activity. To minimize such losses, it is recommended to add a commonly used carrier protein solution prior to the long-term storage of recombinant protein products.

  • Carrier protein types and options?

    In cases where the carrier protein is not expected to influence the experimental outcomes, an appropriate carrier protein, such as 0.1% BSA (Bovine Serum Albumin), 5% HSA (Human Serum Albumin), 10% FBS (Fetal Bovine Serum), or 5% trehalose, can be incorpo

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Product Name:
GCP-2/CXCL6 Protein, Human (HEK293, His)
Cat. No.:
HY-P72677
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