Recombinant Mouse Serine Protease Htra1 (HTRA1) Protein (His)

Name: Recombinant Mouse Serine Protease Htra1 (HTRA1) Protein (His)
Brand: Beta LifeScience
SKU: BLC-03420P
Availability: InStock

Greater than 85% as determined by SDS-PAGE.

Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of this product could indicate that this peptide derived from E.coli-expressed Mus musculus (Mouse) Htra1.

Collections: High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Mouse Serine Protease Htra1 (HTRA1) Protein (His) is produced by our E.coli expression system. This is a protein fragment.
Purity	Greater than 85% as determined by SDS-PAGE.
Uniprotkb	Q9R118
Target Symbol	HTRA1
Synonyms	Htra1; Htra; Prss11; Serine protease HTRA1; EC 3.4.21.-; High-temperature requirement A serine peptidase 1; Serine protease 11
Species	Mus musculus (Mouse)
Expression System	E.coli
Tag	C-6His
Target Protein Sequence	KLRQPPVIVLQRGACGQGQEDPNSLRHKYNFIADVVEKIAPAVVHIELYRKLPFSKREVPVASGSGFIVSEDGLIVTNAHVVTNKNRVKVELKNGATYEAKIKDVDEKADIALIKIDHQGKLPVLLLGRSSELRPGEFVVAIGSPFSLQNTVTTGIVSTTQRGGKELGLRNSDMDYIQTDAIINYGNSGGPLVNLDGEVIGINTLKVTAGISFAIPSDKIKKFLTESHDRQAKGKAVTKKKYIGIRMMSLTSSKAKELKDRHRDFPDVLSGAYIIEVIPDTPAEAGGLKENDVIISINGQSVVTANDVSDVIKKENTLNMVVRRGNEDIVITVIPEEIDP
Expression Range	141-480aa
Protein Length	Partial
Mol. Weight	39.0 kDa
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	Serine protease with a variety of targets, including extracellular matrix proteins such as fibronectin. HTRA1-generated fibronectin fragments further induce synovial cells to up-regulate MMP1 and MMP3 production. May also degrade proteoglycans, such as aggrecan, decorin and fibromodulin. Through cleavage of proteoglycans, may release soluble FGF-glycosaminoglycan complexes that promote the range and intensity of FGF signals in the extracellular space. Regulates the availability of insulin-like growth factors (IGFs) by cleaving IGF-binding proteins. Inhibits signaling mediated by TGF-beta family members. This activity requires the integrity of the catalytic site, but it is unclear whether it leads to the proteolytic degradation of TGF-beta proteins themselves or not. By acting on TGF-beta signaling, may regulate many physiological processes, including retinal angiogenesis and neuronal survival and maturation during development. Intracellularly, degrades TSC2, leading to the activation of TSC2 downstream targets.
Subcellular Location	Cell membrane. Secreted. Cytoplasm, cytosol.
Protein Families	Peptidase S1C family
Database References	KEGG: mmu:56213 STRING: 10090.ENSMUSP00000006367 UniGene: PMID: 26950191 HtrA1 plays important roles in the differentiation of trophoblasts from Tpbpa-positive precursors in the ectoplacental cone PMID: 25446274 The HtrA1 overexpression and mainstream cigarette smoke can independently lead to CNV. The HtrA1 gene is a strong risk factor for wet AMD PMID: 25205867 the inhibitory effect of IFN-gamma on HTRA1 expression was evidenced in collagen-induced arthritis (CIA) mouse models and in human RA synovial cells. PMID: 24907345 Serine protease HTRA1 antagonizes transforming growth factor-beta signaling by cleaving its receptors and loss of HTRA1 in vivo enhances bone formation. PMID: 24040176 This study offers new insights into the regulation of HTRA-1 expression via LPS/TLR-4 and the role of HTRA-1 in rheumatoid arthrisis pathogenesis. PMID: 23982886 suggest a critical role for LRP1 in maintaining the integrity of vessels by regulating protease activity as well as matrix deposition by modulating HtrA1 and connective tissue growth factor protein levels. PMID: 23868935 a critical role of HTRA1 in the regulation of angiogenesis via TGF-beta signaling and identified GDF6 as a novel disease gene for AMD. PMID: 22049084 showed that increased HTRA1 induced cardinal features of polypoidal choroidal vasculopathy, including branching networks of choroidal vessels, polypoidal lesions, severe degeneration of the elastic laminae, and tunica media of choroidal vessels PMID: 21844367 HtrA1 may disrupt the pericellular matrix network, resulting in alteration of chondrocyte metabolisms. This eventually leads to osteoarthritis. PMID: 20238298 HtrA1 has a role in promoting anoikis by attenuating activation of EGFR/AKT pathway that may contribute to its metastasis suppression capacity PMID: 20388781 During embryo development, HtrA1 was expressed in specific areas where signaling by Tgfbeta family proteins plays important regulatory roles PMID: 14973287 HtrA1 as a protease potentially important for trophoblast differentiation/invasion and uterine decidual regression during placental development PMID: 15861393 bone matrix shows a high level of HtrA1 protein deposition akin to that of TGF-beta, suggesting a close functional interaction between TGF-beta and HtrA1 PMID: 15993670 highly upregulated during mucosal mast cell differentiation PMID: 17292962 HtrA1 and PRSS35 may be involved in ovulation and corpus luteum formation and regression, and that PRSS23 may play a role in follicular atresia PMID: 18566130

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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.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.