Recombinant Mouse Asporin (ASPN) Protein (His&Myc)

Name: Recombinant Mouse Asporin (ASPN) Protein (His&Myc)
Brand: Beta LifeScience
SKU: BLC-07137P
Availability: InStock

Greater than 85% as determined by SDS-PAGE.

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Product Overview

Description	Recombinant Mouse Asporin (ASPN) Protein (His&Myc) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 85% as determined by SDS-PAGE.
Uniprotkb	Q99MQ4
Target Symbol	ASPN
Species	Mus musculus (Mouse)
Expression System	E.coli
Tag	N-10His&C-Myc
Target Protein Sequence	DMEDTDDDDNDDDDNSLFPTKEPVNPFFPFDLFPTCPFGCQCYSRVVHCSDLGLTSVPNNIPFDTRMVDLQNNKIKEIKENDFKGLTSLYALILNNNKLTKIHPKTFLTTKKLRRLYLSHNQLSEIPLNLPKSLAELRIHDNKVKKIQKDTFKGMNALHVLEMSANPLENNGIEPGAFEGVTVFHIRIAEAKLTSIPKGLPPTLLELHLDFNKISTVELEDLKRYRELQRLGLGNNRITDIENGTFANIPRVREIHLEHNKLKKIPSGLQELKYLQIIFLHYNSIAKVGVNDFCPTVPKMKKSLYSAISLFNNPMKYWEIQPATFRCVLGRMSVQLGNVGK
Expression Range	33-373aa
Protein Length	Full Length of Mature Protein
Mol. Weight	46.4 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	Binds calcium and plays a role in osteoblast-driven collagen biomineralization activity. Critical regulator of TGF-beta in articular cartilage and plays an essential role in cartilage homeostasis and osteoarthritis (OA) pathogenesis. Negatively regulates chondrogenesis in the articular cartilage by blocking the TGF-beta/receptor interaction on the cell surface and inhibiting the canonical TGF-beta/Smad signal. Negatively regulates periodontal ligament (PDL) differentiation and mineralization to ensure that the PDL is not ossified and to maintain homeostasis of the tooth-supporting system. Inhibits BMP2-induced cytodifferentiation of PDL cells by preventing its binding to BMPR1B/BMP type-1B receptor, resulting in inhibition of BMP-dependent activation of SMAD proteins. Inhibits the interaction between TGFB1 and TGF-beta receptor type II in the presence of heparin/heparan sulfate in vitro.
Subcellular Location	Secreted, extracellular space, extracellular matrix.
Protein Families	Small leucine-rich proteoglycan (SLRP) family, SLRP class I subfamily
Database References	KEGG: mmu:66695 STRING: 10090.ENSMUSP00000021820 UniGene: Mm.383216
Tissue Specificity	Higher expression in heart, also detected in kidney, stomach, testes, and skin but only weakly in lung, skeletal muscle, small intestine, and thymus. Expressed specifically and predominantly in the periodontal ligament (PDL). During tooth development, str

Gene Functions References

Asporin deficiency changes skin glycosaminoglycan composition, and decorin and biglycan content, which may explain the changes in skin mechanical properties. PMID: 28859141
inhibition of TLR2- and TLR4-induced inflammatory responses and binding abilities to TLR2 and TLR4 PMID: 26399972
positively regulates FGF-2 activity through a direct interaction PMID: 26239644
Findings suggest that asporin is one of the important cartilage matrix proteins that binds to the ECM and TGF-beta1 and thereby modulates interactions between TGF-beta and its signaling receptors. PMID: 20052601
PLAP-1/asporin plays a specific role in the periodontal ligament as a negative regulator of cytodifferentiation and mineralization by regulating BMP-2 activity to prevent the periodontal ligament from developing non-physiological mineralization PMID: 17522060
The findings indicate that TGF-beta1 induces ASPN through Smad3 but that this induction is indirect. PMID: 17804408
Leucine-rich repeat motif 5 (LRR5) of PLAP-1/asporin, plays an important role in the PLAP-1/asporin-BMP-2 interaction. PMID: 18407830

FAQs

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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.