Rat Alpha 2 Antiplasmin/SerpinF2 HEK293 Overexpression Lysate


Rat Alpha 2 Antiplasmin/SerpinF2 HEK293 Overexpression Lysate: 产品信息

This Rat Alpha 2 Antiplasmin/SerpinF2 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of Alpha 2 Antiplasmin/SerpinF2 protein (Cat: 80687-R08H) from the overexpression lysate was verified.
HEK293 Cells
A DNA sequence encoding the rat SERPINF2 (NP_001011892.1) (Met1-Lys491) was expressed with a polyhistidine tag at the C-terminus.
The recombinant rat SERPINF2 consists of 475 amino acids and predicts a molecular mass of 53.6 kDa.

Rat Alpha 2 Antiplasmin/SerpinF2 HEK293 Overexpression Lysate: 使用指南

Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
1.  Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube. 2.  Re-dissolve the pellet using 200μL pure water and boil for 2-5 min.
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
稳定性 & 储存条件
Store at 4℃ for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80℃ for up to twelve months. Avoid repeated freeze-thaw cycles.
Western Blot (WB)
Optimal dilutions/concentrations should be determined by the end user.

Alpha 2 Antiplasmin/SerpinF2 背景信息

SerpinF2, also known as alpha-2 antiplasmin (alpha-2 AP), is a member of the Serpin superfamily. SerpinF2 is the principal physiological inhibitor of serine protease plasmin, and as well as, an efficient inhibitor of trypsin and chymotrypsin. This protease is produced mainly by liver and kidney, and also expressed in muscle, intestine, central nervous system, and placenta at a moderate level. It is indicated that Serpin F2 is a key regulator of plasmin-mediated proteolysis in these tissues. Alpha-2 AP is an unusual serpin in that it contains extensive N- and C-terminal sequences flanking the serpin domain. The N-terminal sequence is crosslinked to fibrin by factor XIIIa, whereas the C-terminal region mediates the initial interaction with plasmin. SerpinF2 is one of the inhibitors of fibrinolysis, which acts as the primary inhibitor of plasmin(ogen). It is a specific plasmin inhibitor, and is important in modulating the effectiveness and persistence of fibrin with respect to its susceptibility to digestion and removal by plasmin. Alpha-2 AP plays the dominant role in inhibiting both plasma clot lysis and thrombus lysis, and accordingly, the congenital deficiency of Alpha-2 antiplasmin causes a rare bleeding disorder because of increased fibrinolysis. Thus, it may be a useful target for developing more effective treatment of thrombotic diseases.
serpin peptidase inhibitor, clade F, member 2
  • Lee KN, et al. (2004) Alpha2-antiplasmin: potential therapeutic roles in fibrin survival and removal. Curr Med Chem Cardiovasc Hematol Agents. 2(4): 303-10.
  • Matsuno H. (2006) Alpha2-antiplasmin on cardiovascular diseases. Curr Pharm Des. 12(7): 841-7.
  • Burnouf T, et al. (2007) Impact of Triton X-100 on alpha 2-antiplasmin (SERPINF2) activity in solvent/detergent-treated plasma. Biologicals. 35(4): 349-53.
  • Carpenter SL, et al. (2008) Alpha2-antiplasmin and its deficiency: fibrinolysis out of balance. Haemophilia. 14(6): 1250-4.
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