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AB259397

Recombinant human IL-8 protein (Active)

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(3 Publications)

Recombinant human IL-8 protein (Active) is a Human Full Length protein in the 29 to 99 aa range with >=95% purity, < 0.005 EU/µg endotoxin level and suitable for SDS-PAGE, Functional studies, mass spectrometry, HPLC and Cell Culture. The predicted molecular weight of ab259397 protein is 8.36 kDa.

- Save time and ensure accurate results - use our recombinant IL-8 protein as a control
- Optimal protein bioactivity, stability and reproducibility
- Available in different sizes to fit your experimental needs

View Alternative Names

IL8, CXCL8, Interleukin-8, IL-8, C-X-C motif chemokine 8, Chemokine (C-X-C motif) ligand 8, Emoctakin, Granulocyte chemotactic protein 1, Monocyte-derived neutrophil chemotactic factor, Monocyte-derived neutrophil-activating peptide, Neutrophil-activating protein 1, Protein 3-10C, T-cell chemotactic factor, GCP-1, MDNCF, MONAP, NAP-1

4 Images
Functional Studies - Recombinant human IL-8 protein (Active) (AB259397)
  • FuncS

Supplier Data

Functional Studies - Recombinant human IL-8 protein (Active) (AB259397)

Fully biologically active as determined by the dose dependant migration of human PBMCs.

ED50 is ≤ 12 ng/mL, corresponding to a specific activity of 8.33 x 104 units/mg.

Mass Spectrometry - Recombinant human IL-8 protein (Active) (AB259397)
  • Mass Spec

Supplier Data

Mass Spectrometry - Recombinant human IL-8 protein (Active) (AB259397)

M +/- 0 Da (Calc mass 8356 Da).

The spectrum was recorded with a 6545XT AdvanceBio LC/Q-TOF (Agilent Technologies) and a MabPac RP column (42.1x50 mm, 4 μm, Thermo Scientific). 5 μL of purified protein was injected and the gradient run from 85 % water : FA (99.9 : 0.1 v/v) and 15 % acetonitrile : FA (90 : 9.9 : 0.1 v/v/v) to 55 % water : FA (99.9 : 0.1 v/v) and 45 % acetonitrile : FA (90 : 9.9 : 0.1 v/v/v) within 3 minutes followed by an isocratic step for another 2.5 min. Flow rate was 0.4 mL/min and the column compartment temperature was 60 °C. Data was analysed and deconvoluted using the Bioconfirm software (Agilent Technologies).

HPLC - Recombinant human IL-8 protein (Active) (AB259397)
  • HPLC

Ap

HPLC - Recombinant human IL-8 protein (Active) (AB259397)

Purity = 100%.

The spectrum was recorded using a 1260 Infinity II HPLC system with DAD and a MabPac RP column (3.0x100 mm, 4 μm). 5 μL of purified protein was injected and the gradient run from 80 % water : TFA (99.9 : 0.1 v/v) and 20 % acetonitrile : waterTFA (90 : 9.9 : 0.1 v/v/v) to 20 % water : TFA (99.9 : 0.1 v/v) and 80 % acetonitrile : water : TFA (90 : 9.9 : 0.1 v/v/v) within 3 minutes followed by an isocratic step for another 3 min. Flow rate was 0.5 mL/min and the column compartment temperature was 50 °C.

SDS-PAGE - Recombinant human IL-8 protein (Active) (AB259397)
  • SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant human IL-8 protein (Active) (AB259397)

SDS-PAGE analysis of ab259397.

Key facts

Purity

>95% SDS-PAGE

Endotoxin level

< 0.005 EU/µg

Expression system

HEK 293 cells

Tags

Tag free

Applications

Mass Spec, HPLC, Cell Culture, FuncS, SDS-PAGE

applications

Biologically active

Yes

Biological activity

Fully biologically active as determined by the dose dependant migration of human PBMCs.

ED50 is ≤ 12 ng/mL, corresponding to a specific activity of 8.33 x 104 units/mg.

Accession

P10145

Animal free

Yes

Carrier free

No

Species

Human

Reconstitution

Reconstitute in PBS

Storage buffer

pH: 6 - 8 Constituents: 10.26% Trehalose, 0.727% Dibasic monohydrogen potassium phosphate, 0.248% Potassium phosphate monobasic

storage-buffer

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "FuncS": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "Mass Spec": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "HPLC": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "Cell Culture": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Ensure the validity of your result using our recombinant human IL-8 protein ab259397 as a control.

The ab259397 IL-8 protein is sourced from HEK293 cells and can be used as a positive control in SDS-PAGE, mass spectrometry and HPLC.

Check out our protein gel staining guide for SDS-PAGE here

Premium Bioactive Protein range

The ab259397 IL-8 protein is part of the premium bioactive protein range which are ideal for preclinical cell culture and functional studies. These recombinant proteins are of the highest activity, purity, and consistency, meeting rigorous biophysical characterization.

More premium bioactive proteins can be found here

Sequence info

[{"sequence":"AKELRCQCIKTYSKPFHPKFIKELRVIESGPHCANTEIIVKLSDGRELCLDPKENWVQRVVEKFLKRAENS","proteinLength":"Full Length","predictedMolecularWeight":"8.36 kDa","actualMolecularWeight":null,"aminoAcidEnd":99,"aminoAcidStart":29,"nature":"Recombinant","expressionSystem":null,"accessionNumber":"P10145","tags":[]}]

Properties and storage information

Shipped at conditions
Ambient - Can Ship with Ice
Appropriate short-term storage conditions
Ambient
Appropriate long-term storage conditions
Ambient
True

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

IL-8 also known as CXCL8 is a cytokine with a molecular weight of approximately 8 kDa. It belongs to the CXC chemokine family and plays a role in the recruitment of neutrophils to sites of inflammation. Cells like monocytes macrophages and endothelial cells express IL-8 after activation by pro-inflammatory signals. The protein exhibits high expression in cells associated with the immune response and inflammation serving as a signaling molecule between these cell types.
Biological function summary

IL-8 functions as a chemoattractant for neutrophils and lymphocytes facilitating their movement towards the site of infection or injury. It does not form part of a larger protein complex but operates individually to enhance immune cell migration. IL-8 possesses unique binding motifs allowing it to interact with specific receptors namely CXCR1 and CXCR2 on target cells. This binding triggers cellular responses leading to effective immune surveillance and response to inflammatory stimuli.

Pathways

IL-8 operates within important inflammatory and immune response pathways. It forms a part of the NF-κB signaling cascade which activates in response to stress signals promoting the expression of other inflammatory mediators. Additionally it engages in the mitogen-activated protein kinase (MAPK) pathway influencing cellular responses such as proliferation and differentiation. The interaction of IL-8 with these pathways highlights its role in modulating immune responses and highlights its interaction with other proteins such as TNF-α and IL-1β.

IL-8 shows a strong association with conditions like rheumatoid arthritis and chronic obstructive pulmonary disease (COPD). It acts as a biomarker for these diseases often correlating with disease severity and inflammation levels. In rheumatoid arthritis IL-8 contributes to joint inflammation and degradation while in COPD it enhances airway inflammation and tissue damage. The cytokine's involvement in these diseases connects it with other inflammatory mediators such as MMPs and leukotrienes which collectively exacerbate disease pathology.

Specifications

Form

Lyophilized

Additional notes

Purity by HPLC >=95%.

General info

Function

Chemotactic factor that mediates inflammatory response by attracting neutrophils, basophils, and T-cells to clear pathogens and protect the host from infection (PubMed : 18692776, PubMed : 7636208). Also plays an important role in neutrophil activation (PubMed : 2145175, PubMed : 9623510). Released in response to an inflammatory stimulus, exerts its effect by binding to the G-protein-coupled receptors CXCR1 and CXCR2, primarily found in neutrophils, monocytes and endothelial cells (PubMed : 1840701, PubMed : 1891716). G-protein heterotrimer (alpha, beta, gamma subunits) constitutively binds to CXCR1/CXCR2 receptor and activation by IL8 leads to beta and gamma subunits release from Galpha (GNAI2 in neutrophils) and activation of several downstream signaling pathways including PI3K and MAPK pathways (PubMed : 11971003, PubMed : 8662698).

Sequence similarities

Belongs to the intercrine alpha (chemokine CxC) family.

Post-translational modifications

Several N-terminal processed forms are produced by proteolytic cleavage after secretion from at least peripheral blood monocytes, leukcocytes and endothelial cells. In general, IL-8(1-77) is referred to as interleukin-8. IL-8(6-77) is the most promiment form.. Citrullination at Arg-27 prevents proteolysis, and dampens tissue inflammation, it also enhances leukocytosis, possibly through impaired chemokine clearance from the blood circulation.. (Microbial infection) Cleaved by group A Streptococcus protease SpyCEP; leading to impaired neutrophil endothelial transmigration and thus increased virulence.

Product protocols

Target data

Chemotactic factor that mediates inflammatory response by attracting neutrophils, basophils, and T-cells to clear pathogens and protect the host from infection (PubMed : 18692776, PubMed : 7636208). Also plays an important role in neutrophil activation (PubMed : 2145175, PubMed : 9623510). Released in response to an inflammatory stimulus, exerts its effect by binding to the G-protein-coupled receptors CXCR1 and CXCR2, primarily found in neutrophils, monocytes and endothelial cells (PubMed : 1840701, PubMed : 1891716). G-protein heterotrimer (alpha, beta, gamma subunits) constitutively binds to CXCR1/CXCR2 receptor and activation by IL8 leads to beta and gamma subunits release from Galpha (GNAI2 in neutrophils) and activation of several downstream signaling pathways including PI3K and MAPK pathways (PubMed : 11971003, PubMed : 8662698).
See full target information CXCL8

Publications (3)

Recent publications for all applications. Explore the full list and refine your search

Nature communications 16:1715 PubMed39962077

2025

The CXCL8/MAPK/hnRNP-K axis enables susceptibility to infection by EV-D68, rhinovirus, and influenza virus in vitro.

Applications

Unspecified application

Species

Unspecified reactive species

Qingran Yang,Haoran Guo,Huili Li,Zhaoxue Li,Fushun Ni,Zhongmei Wen,Kai Liu,Huihui Kong,Wei Wei

Nature communications 15:691 PubMed38263143

2024

Exosomal secreted SCIMP regulates communication between macrophages and neutrophils in pneumonia.

Applications

Unspecified application

Species

Unspecified reactive species

Xiaolei Pei,Li Liu,Jieru Wang,Changyuan Guo,Qingqing Li,Jia Li,Qian Ren,Runzhi Ma,Yi Zheng,Yan Zhang,Li Liu,Danfeng Zheng,Pingzhang Wang,Ping Jiang,Xiaoming Feng,Erlie Jiang,Ying Wang,Sizhou Feng

Biomedical optics express 15:185-198 PubMed38223184

2024

Functionalized optical fiber ball-shaped biosensor for label-free, low-limit detection of IL-8 protein.

Applications

Unspecified application

Species

Unspecified reactive species

Gyunel Rashidova,Meruyert Tilegen,Tri T Pham,Aliya Bekmurzayeva,Daniele Tosi
View all publications

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