Recombinant Human Neutrophil Elastase (ELANE) Protein (GST)

Name: Recombinant Human Neutrophil Elastase (ELANE) Protein (GST)
Brand: Beta LifeScience
SKU: BLC-03312P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Neutrophil Elastase (ELANE) Protein (GST) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	P08246
Target Symbol	ELANE
Synonyms	Bone marrow serine protease; ELA2; ELANE; Elastase 2; Elastase 2 neutrophil; Elastase neutrophil expressed; Elastase-2; ELNE_HUMAN; GE; Granulocyte derived elastase; HLE; HNE; Human leukocyte elastase; Leukocyte elastase; Medullasin; NE; Neutrophil elastase; PMN E; PMN elastase; Polymorphonuclear elastase; SCN1
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-GST
Target Protein Sequence	IVGGRRARPHAWPFMVSLQLRGGHFCGATLIAPNFVMSAAHCVANVNVRAVRVVLGAHNLSRREPTRQVFAVQRIFENGYDPVNLLNDIVILQLNGSATINANVQVAQLPAQGRRLGNGVQCLAMGWGLLGRNRGIASVLQELNVTVVTSLCRRSNVCTLVRGRQAGVCFGDSGSPLVCNGLIHGIASFVRGGCASGLYPDAFAPVAQFVNWIDSIIQRSEDNPCPHPRDPDPASRTH
Expression Range	30-267aa
Protein Length	Full Length of Mature Protein
Mol. Weight	52.6kDa
Research Area	Signal Transduction
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
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	Modifies the functions of natural killer cells, monocytes and granulocytes. Inhibits C5a-dependent neutrophil enzyme release and chemotaxis. Capable of killing E.coli but not S.aureus in vitro; digests outer membrane protein A (ompA) in E.coli and K.pneumoniae.
Subcellular Location	Cytoplasmic vesicle, phagosome.
Protein Families	Peptidase S1 family, Elastase subfamily
Database References	HGNC: 3309 OMIM: 130130 KEGG: hsa:1991 STRING: 9606.ENSP00000263621 UniGene: PMID: 30056589 Munc134 mediates human neutrophil elastaseinduced airway mucin5AC hypersecretion by interacting with syntaxin2. PMID: 29767240 Neutrophil elastase impaired the EMILIN1-alpha4beta1 integrin interaction by cleaving the gC1q domain in a region crucial for its proper structural conformation, paving the way to better understand NE effects on EMILIN1-cell interaction in pathological context. PMID: 28074935 the effect of elastase on gammadelta T cells was mediated through the protease-activated receptor, PAR1, because the inhibition of this receptor with a specific antagonist, RWJ56110, abrogated the effect of neutrophils on gammadelta T-cell activation. PMID: 28888033 PMN elastase is released by neutrophils in response to Streptococcus pneumoniae pneumolysin. PMID: 27892542 Plasma Neutrophil Elastase and Elafin as Prognostic Biomarker for Acute Respiratory Distress Syndrome. PMID: 28187039 Our results suggest that associated serum levels of proMMP-9, NGAL, proMMP-9/NGAL and NE may reflect the state of systemic inflammation in chronic obstructive pulmonary disease related to cigarette smoking. PMID: 28004483 Using different blood leukocyte and skin resident cell preparations, and recombinant proteins, the authors have identified that neutrophil elastase, but not other neutrophil derived proteases, cleaves IL-36Ra into its highly active antagonistic form. PMID: 27101808 Taken together, these observations support that the unusual HNE N-glycosylation, here reported for the first time, is involved in modulating multiple immune functions central to inflammation and infection. PMID: 28630087 results suggest activation of elastase in tendinopathy of the long head of the biceps increases the degradation of elastin to increase the levels of elastase, becoming a vicious cycle to the progressive severity of tendinopathy PMID: 27935111 Coincubation with the inhibitors, particularly MK0339, promoted cell survival and increased formation of mature neutrophils. These studies suggest that cell-permeable inhibitors of neutrophil elastase show promise as novel therapies for ELANE-associated neutropenia. PMID: 28754797 Data suggest that neuropilin-1 (NRP1) functions as a receptor for neutrophil elastase (NE), mediates uptake/absorption of NE, and facilitates cross-presentation of PR1 (a peptide fragment of NE) in breast cancer cells. PMID: 28468826 the impact of NE mutations that are typical of human congenital neutropenia in a murine model of in vitro and in vivo neutrophil differentiation PMID: 27942017 Faecal biomarkers lactoferrin, calprotectin, and PMN-elastase were able to distinguish between ulcerative colitis patients with mucosal healing from clinical remission and mild disease, showed significant correlations with endoscopy, and were predictive of a flare. PMID: 26874351 In conclusion, site-specific CBG N-glycosylation regulates the bioavailability of cortisol in inflamed environments by fine-tuning the RCL proteolysis by endogenous and exogenous elastases. PMID: 27339896 Although circulating nucleosomes and elastase - alpha 1-antitrypsin complexes are at present the best characterized biomarkers for neutrophil extracellular traps formation and neutrophil activation, their lack of association with rs2288904 genotype does not exclude a role for SLC44A2 in neutrophil activation (and possibly NET formation) in Venous Thromboembolism. PMID: 27093231 The levels of both NE and PR3 correlated with absolute neutrophil counts and are reduced in type 1 diabetes mellitus patients. PMID: 26939803 The results of the present study may indicate that NE activates the phosphoinositide-3 kinase/Akt signaling pathway in leukemia cells to inhibit apoptosis and enhance cell proliferation PMID: 27035679 The HNE-TACE signalling pathway has an important role in the process of MUC5AC overexpression in chronic rhinosinusitis. PMID: 26881964 An increased NE: A1 AT ratio is closely associated with liver Inflammation in patients with NASH and could serve as a novel marker to predict NASH in humans PMID: 26444279 Neutrophil elastase activity is deleterious for airway epithelial cell homeostasis. PMID: 26221769 mosaic mutations result in cyclic neutropenia PMID: 25912133 insights into the PPE and HNE inhibition PMID: 26372354 Different ELANE mutants show specific activation of different UPR pathways in congenital neutropenia. PMID: 26567890 Neutrophil elastase was increased in the saliva from COPD patients and additionally distinguished smoking status. PMID: 26018813 Paternal Somatic Mosaicism of a Novel Frameshift Mutation in ELANE Causing Severe Congenital Neutropenia. PMID: 26174650 Sirtinol is a novel HNE inhibitor and may have the potential for clinical application in the treatment of inflammatory lung diseases. PMID: 25666548 Autoprocessing of neutrophil elastase near its active site reduces the efficiency of natural and synthetic elastase inhibitors. PMID: 25857284 analysis of the mechanistic link between neutrophil elastase expression in atherosclerotic plaques and concomitant pro-inflammatory bioactive IL-1beta secretion from endothelial cells PMID: 26269588 In patients with carotid plaques, both circulating and intraplaque polymorphonuclear neutrophils produce IL-8, VEGF and elastase, which are crucial for plaque development and progression. PMID: 25893670 Pathogenesis of ELANE-mutant severe neutropenia revealed by induced pluripotent stem cells. PMID: 26193632 The imbalance between Neutrophil elastase and its inhibitors, such as elafin, presents an important therapeutic target in breast cancer. PMID: 25195861 Neutrophil elastase mainly enhances tissue factor production by monocytes via the phospholipase C/conventional PKC/p38 MAPK pathway, although a novel PKC is also involved. PMID: 25465717 results suggest that elastase-like proteases in the microglial cells surrounding Abeta plaques are responsible for ApoE degradation in the brain. PMID: 25956321 PAR2 and TRPV4 are activated by neutrophil elastase to cause inflammation and pain PMID: 25878251 Three proteins-matrix metalloproteinase-9, neutrophil elastase, and FAM49B-were significantly lower in abundance in samples from women with endometriosis. PMID: 25284053 Sequencing is useful for predicting outcomes of ELANE-associated neutropenia. PMID: 25427142 Over-expressed NE in K562 leukemia cells promotes cell proliferation, inhibits apoptosis and block cell cycle in S phase. PMID: 25652853 Suggest a potential role of ELANE gene polymorphisms as therapy modulators in childhood bronchiectasis. PMID: 24816969 An interactive network of elastase, secretases, and PAR-2 protein regulates CXCR1 receptor surface expression on neutrophils PMID: 24914212 Circulating protein levels and enzymatic activity of ELANE are markedly elevated in patients with type 1 diabetes mellitus, and are correlated with increased autoantibodies against beta-cell antigens. PMID: 25092677 The present findings highlight the peculiar activity of PMN elastase in disabling EMILIN1 suppressor function. PMID: 24513040 It reports the synthesis and enzymatic studies on a new proteinase 3 intermolecular quenched substrate with enhanced selectivity over neutrophil elastase. PMID: 23911525 The leukocyte elastase gene is substituted at the 597th base (G to A) in intron 4 of severe congenital neutropenia. PMID: 24616599 Human sex hormone-binding globulin mediates the targeted release of cortisol at sites of inflammation through cleavage of its reactive center loop by neutrophil elastase. PMID: 24848868 neutrophil elastase reflects the severity and progression of acute pancreatitis. PMID: 23819644 ELANE mutations disrupt translation initiation and are associated with neutropenia; they produce novel neutrophil elastase isoforms PMID: 24184683 SPLUNC1 degradation by neutrophil elastase may increase airway susceptibility to bacterial infections. PMID: 23741370 Neutrophil elastase and proteinase-3 trigger G protein-biased signaling through proteinase-activated receptor-1 (PAR1). PMID: 24052258 Specific ELANE mutations have limited predictive value for leukemogenesis; the risk for leukemia was correlated with disease severity rather than with occurrence of an ELANE mutation. PMID: 23463630

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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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