IL-8 / CXCL8 recombinant protein

Recombinant Human IL-8 / CXCL8 Protein (aa 28-99)

Cat. Num. AAA2544980

• Gene Names: CXCL8; IL8; NAF; GCP1; LECT; LUCT; NAP1; GCP-1; LYNAP; MDNCF; MONAP; NAP-1
• Purity: > 95 % as determined by SDS-PAGE.
• Synonyms: IL-8 / CXCL8; Recombinant Human IL-8 / CXCL8 Protein (aa 28-99); CXCL8; IL-8 / CXCL8 recombinant protein

• Host: E Coli
• Purity/Purification: > 95 % as determined by SDS-PAGE.
• Form/Format: Lyophilized from sterile PBS, pH 7.4
• Sequence Length: 99

• Application Notes: The recombinant human IL8 consists 73 amino acids and predicts a molecular mass of 8.5 kDa.
• Predicted N Terminal: Met
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -70 degree C

SDS-PAGE

Related Product Information for IL-8 / CXCL8 recombinant protein

Background: Interleukin 8 (IL-8), also known as CXCL8, which is a chemokine with a defining CXC amino acid motif that was initially characterized for its leukocyte chemotactic activity, is now known to possess tumorigenic and proangiogenic properties as well. This chemokine is secreted by a variety of cell type s including monocyte/macrophages, T cells, neutrophils, fibroblasts, endothelial cells, and various tumor cell lines in response to inflammatory stimuli (IL1, TNF, LPS, etc). In human gliomas, IL-8 is expressed and secreted at high levels both in vitro and in vivo, and recent experiments suggest it is critical to glial tumor neovascularity and progression. Levels of IL-8 correlate with histologic grade in glial neoplasms, and the most malignant form, glioblastoma, shows the highest expression in pseudopalisading cells around necrosis, suggesting that hypoxia/anoxia may stimulate expression. Interleukin (IL)-8/CXCL8 is a potent neutrophil chemotactic factor. Accumulating evidence has demonstrated that various type s of cells can produce a large amount of IL-8/CXCL8 in response to a wide variety of stimuli, including proinflammatory cytokines, microbes and their products, and environmental changes such as hypoxia, reperfusion, and hyperoxia. Numerous observations have established IL-8/CXCL8 as a key mediator in neutrophil-mediated acute inflammation due to its potent actions on neutrophils. However, several lines of evidence indicate that IL-8/CXCL8 has a wide range of actions on various type s of cells, including lymphocytes, monocytes, endothelial cells, and fibroblasts, besides neutrophils. The discovery of these biological functions suggests that IL-8/CXCL8 has crucial roles in various pathological conditions such as chronic inflammation and cancer. IL-8 has been associated with tumor angiogenesis, metastasis, and poor prognosis in breast cancer. IL-8 may present a novel therapeutic target for estrogen driven breast carcinogenesis and tumor progression.

Description: A DNA sequence encoding the human IL8 (NP_000575.1) (Ser28-Ser99) was expressed with an initial Met.

NCBI and Uniprot Product Information

• NCBI GI #: 10834978
• NCBI GeneID: 3576
• NCBI Accession #: NP_000575.1
• NCBI GenBank Nucleotide #: NM_000584.3
• UniProt Accession #: P10145; Q6FGF6; Q6LAE6; Q96RG6; Q9C077; Q9UCE1; Q9UCR8; Q9UCR9; Q9UCS0; B2R4L8
• Molecular Weight: 11,098 Da
• NCBI Official Full Name: interleukin-8
• NCBI Official Synonym Full Names: C-X-C motif chemokine ligand 8
• NCBI Official Symbol: CXCL8
• NCBI Official Synonym Symbols: IL8; NAF; GCP1; LECT; LUCT; NAP1; GCP-1; LYNAP; MDNCF; MONAP; NAP-1
• NCBI Protein Information: interleukin-8
• UniProt Protein Name: Interleukin-8
• UniProt Gene Name: CXCL8
• UniProt Synonym Gene Names: IL8; IL-8; GCP-1; MDNCF; MONAP; NAP-1; LYNAP; NAF

NCBI Description

The protein encoded by this gene is a member of the CXC chemokine family. This chemokine is one of the major mediators of the inflammatory response. This chemokine is secreted by several cell types. It functions as a chemoattractant, and is also a potent angiogenic factor. This gene is believed to play a role in the pathogenesis of bronchiolitis, a common respiratory tract disease caused by viral infection. This gene and other ten members of the CXC chemokine gene family form a chemokine gene cluster in a region mapped to chromosome 4q. [provided by RefSeq, Jul 2008]

Uniprot Description

IL8: IL-8 is a chemotactic factor that attracts neutrophils, basophils, and T-cells, but not monocytes. It is also involved in neutrophil activation. It is released from several cell types in response to an inflammatory stimulus. IL-8(6-77) has a 5-10-fold higher activity on neutrophil activation, IL-8(5-77) has increased activity on neutrophil activation and IL-8(7-77) has a higher affinity to receptors CXCR1 and CXCR2 as compared to IL-8(1-77), respectively. Belongs to the intercrine alpha (chemokine CxC) family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Cytokine; Motility/polarity/chemotaxis; Secreted; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 4q13.3

Cellular Component: extracellular region

Molecular Function: chemokine activity; interleukin-8 receptor binding; protein binding

Biological Process: angiogenesis; calcium-mediated signaling; cell cycle arrest; cell motility; chemotaxis; embryonic gut development; G-protein coupled receptor protein signaling pathway; immune response; induction of positive chemotaxis; inflammatory response; negative regulation of cell proliferation; negative regulation of G-protein coupled receptor protein signaling pathway; neutrophil activation; neutrophil chemotaxis; positive regulation of angiogenesis; receptor internalization; regulation of cell adhesion; regulation of retroviral genome replication; response to molecule of bacterial origin; signal transduction