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PRO-285 Aprotinin/抑肽酶

点击次数:184发布时间:2012/7/23 16:26:36

PRO-285 Aprotinin/抑肽酶

更新日期:2024/10/16 15:58:55

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Aprotinin/抑肽酶

产品编号:PRO-285
产品规格:100mg/250mg/1g
 
 
Synonyms Pancreatic trypsin inhibitor, Basic protease inhibitor, BPI, BPTI, Aprotinin, AP.
Introduction Aprotinin inhibits the activity of several proteolytic enzymes such as chymotrypsin, kallikrein, plasmin and trypsin. Aprotinin is present in blood and in most tissues, with a high concentration in lung. Aprotinin inhibits pro-inflammatory cytokine release and maintains glycoprotein homeostasis. In platelets, aprotinin reduces glycoprotein loss (e.g., GpIb, GpIIb/IIIa), while in granulocytes it prevents the expression of pro-inflammatory adhesive glycoproteins (e.g., CD11b).
Description Aprotinin is a natural proteinase inhibitor polypeptide consisting of fifty-eight amino acids {C 284 H 432 N 84 O 79 S 7} arranged in a single polypeptide chain, cross-linked by three disulfide bridges and having a molecular mass of 6512.
Source Bovine Lung.
Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation The protein (1mg/ml) was lyophilized with no additives.
Solubility It is recommended to reconstitute the lyophilized Aprotinin in sterile 18MΩ-cm H2O not less than 100μg/ml, which can then be further diluted to other aqueous solutions.
Stability Lyophilized Aprotinin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Aprotinin should be stored at 4°C between 2-7 days and for future use below -18°C.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.
Purity Greater than 98.0% as determined by(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.
Unit Definition 1 Unit corresponds to 1 biological kallikrein inhibitor unit (KIU)
1 TIU ?1,300 KIU.
Activity 6,462 KIU (Kallikrein Inactivator Units) per mg, 4.97 TIU/mg.
Usage Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

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