Recombinant Human SPARC is produced with our mammalian expression system in human cells. The target protein is expressed with sequence (Ala18-Ile303) of Human SPARC fused with a polyhistidine tag at the C-terminus.
纯度
> 95 % as determined by reducing SDS-PAGE.
过滤
0.2 μm filtered
内毒素水平
Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test
It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
缓冲液
Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.2.
注意事项
Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
储存条件
4 °C/-20 °C/-80 °C
储存方法
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
ON Protein, AA517111 Protein, BM-40 Protein, hm:zeh0062 Protein, SPARC Protein, sparc Protein, secreted protein acidic and cysteine rich Protein, secreted acidic cysteine rich glycoprotein Protein, secreted protein, acidic, cysteine-rich (osteonectin) Protein, secreted protein, acidic, cysteine-rich (osteonectin) L homeolog Protein, secreted protein, acidic, cysteine-rich (osteonectin) S homeolog Protein, SPARC Protein, Sparc Protein, sparc Protein, sparc.L Protein, sparc.S Protein
Sub Type
Fusionprotein
背景
Secreted Protein Acidic and Rich in Cysteine (SPARC) is a secreted, evolutionarily conserved collagen-binding glycoprotein and belongs to the SPARC family. SPARC has 286 amino acids and contains an EF-hand in C-termina domain, a follistatin-like domain with Kazal-like sequences. There are two calcium binding sites, one binds 5 - 8 Ca2+ with a low affinity and other on an EF-hand loop that binds a Ca2+ ion with a high affinity. It is highly expressed in tissues undergoing morphogenesis, remodeling and wound repair. SPARC regulate cell growth through interactions with the extracellular matrix (ECM) and cytokines. SPARC bind to numerous proteins of the ECM, affect ECM protein expression, influence cellular adhesion and migration, and modulate growth factor-induced cell proliferation and angiogenesis. SPARC also binds several types of collagen, albumin, thrombospondin, PDGF and cell membranes. Alternative Names: SPARC, Basement-Membrane Protein 40, BM-40, Osteonectin, ON, Secreted Protein Acidic and Rich in Cysteine, SPARC, ON