Active Recombinant Human Interleukin 19

• Cat.No.: IL19-499H
• Product Overview: Recombinant Human IL-19 produced in E.Coli is a single, non-glycosylated polypeptide chain containing 155 amino acids and having a molecular mass of 17913 Dalton.

Specification

• Cat. No.: IL19-499H
• Description: Interleukin-19 (IL-19) is a novel cytokine that was initially identified during a sequence data base search aimed at finding potential Interleukin-10 homologs. Interleukin-19 shares 21% amino acid identity with IL-10.
• Species: Human
• Source: E.coli
• Form: Lyophilized from a concentrated (1mg/ml) solution in water containing 10mM sodium citrate pH-5.
• Purity: Purity Greater than 98% as determined by: Analysis by RP-HPLC. Reducing and non-reducing SDS-PAGE.
• Bio-activity: Recombinant Human Interleukin-19 is fully biologically active when compared to standard. The activity is determined by it"s ability to activate STAT following receptor-ligand interaction.
• Physical Appearance: Sterile Filtered white lyophilized (freeze-dried) powder.
• Solubility: Centrifuge vial before opening. When reconstituting the product, gently pipet and wash down the sides of the vial to ensure full recovery of the protein into solution. It is recommended to reconstitute the lyophilized product with sterile water at a concentration of 0.1 mg"s/ml, which can be further diluted into other aqueous solutions.
• Purity Greater than 98% as determined by: Analysis by RP-HPLC. Reducing and non-reducing SDS-PAGE.
• Protein Content determined by: UV spectroscopy at 280 nm. Analysis by RP-HPLC calibrated against a known standard. Quantitation on SDS-PAGE against a known standard.
• Endotoxin Level: Endotoxin level as measured by LAL is <0.01ng/ug or <0.1EU/ug.
• Amino acid sequence: MLRRCLISTD MHHIEESFQE IKRAIQAKDT FPNVTILSTL ETLQIIKPLD VCCVTKNLLA FYVDRVFKDH
• Storage: Lyophilized product is very stable at -20 degrees. Reconstituted material should be aliquoted and frozen at -20. It is recommended to add a carrier protein (0.1% HSA or BSA) for long term storage.
• Pathways: Cytokine-cytokine receptor interaction; Jak-STAT signaling pathway

Gene Information

• Gene Name: IL19 interleukin 19 [ Homo sapiens ]
• Official Symbol: IL19
• Synonyms: IL19; interleukin 19; MDA1; NG.1; ZMDA1; IL-10C; melanoma differentiation associated protein-like protein; Interleukin-19; IL-19; Melanoma differentiation-associated protein-like protein
• Gene ID: 29949
• mRNA Refseq: NM_013371
• Protein Refseq: NP_037503
• MIM: 605687
• UniProt ID: Q9UHD0
• Chromosome Location: 1q32.2
• Function: cytokine activity

Reviews

02/22/2021

High reproducibility.

07/11/2020

Suitable for Western blot.

04/01/2019

Effective in cell differentiation.

Q&As

How are advanced imaging methods, like confocal microscopy and flow cytometry, applied to visualize IL19-mediated cellular responses and receptor internalization?

Confocal microscopy and flow cytometry visualize IL19-induced cellular responses and track receptor internalization upon ligand binding.

What methods are employed to explore IL19's effects on immune cell polarization, cytokine secretion, and its potential involvement in chronic inflammatory conditions?

Functional assays using immune cell cultures and cytokine profiling assays dissect IL19's impact on immune cell polarization and cytokine secretion.

What experimental strategies are utilized to investigate the binding affinities and stoichiometry of IL19 interactions with its cognate receptor IL20RA and potential co-receptor IL20RB?

Biophysical techniques like surface plasmon resonance and analytical ultracentrifugation quantify IL19's binding to IL20RA and IL20RB and reveal receptor complex composition.

What techniques, such as surface plasmon resonance and isothermal titration calorimetry, are used to quantify IL19's binding kinetics to its receptor complexes?

Biophysical techniques such as surface plasmon resonance and isothermal titration calorimetry quantify IL19's binding kinetics to its receptor complexes.

Could you elaborate on the use of CRISPR/Cas9-based knockout models and RNA interference to dissect IL19's role in specific cell types and tissues?

CRISPR/Cas9 knockout models and siRNA-mediated knockdown in specific cell types unravel IL19's cell-specific roles.

What experimental methodologies, including neutralizing antibodies and receptor blockade, are employed to assess IL19's potential as a therapeutic target in inflammatory and autoimmune diseases?

Neutralizing antibodies, receptor blockade experiments, and in vivo disease models evaluate IL19's suitability as a therapeutic target in inflammatory and autoimmune diseases.

How do researchers employ recombinant protein production techniques to generate bioactive IL19 for in vitro and in vivo functional studies?

Recombinant protein expression in bacterial or mammalian systems followed by purification allows generation of functional IL19 for various experimental assays.

How are reporter gene assays, chromatin immunoprecipitation, and DNA-protein interaction techniques applied to uncover the transcriptional regulation of IL19 and its downstream targets?

Reporter gene assays, ChIP, and DNA-protein interaction studies probe IL19's transcriptional regulation and interactions with specific DNA sequences.

How do researchers utilize animal models and patient samples to study IL19's contribution to skin disorders, such as psoriasis, and its therapeutic implications?

Animal models and patient samples, combined with histopathology and molecular assays, shed light on IL19's involvement in skin disorders and its therapeutic potential.

Can you explain the experimental approaches to elucidate IL19's role in wound healing, tissue repair, and its impact on fibroblast and keratinocyte function?

Animal wound healing models, in vitro cell migration assays, and co-culture experiments investigate IL19's role in tissue repair and its effects on fibroblast and keratinocyte function.