Thrombin Alfa, Recombinant Human Thrombin

Specification

• Cat#: THP-0096
• Product Name: Thrombin Alfa, Recombinant Human Thrombin
• Description: Recombinant Human Thrombin is a human coagulation protein expressed in CHO cell line. The product is identical in amino acid sequence and structurally similar to naturally occurring human thrombin. The product precursor is secreted to culture medium as single chain form that is proteolytically converted to a two-chain active form (using a protein derived from snakes) and is purified by a chromatographic process that yields a product having hemostatic activities similar to native human thrombin. The cell line used to manufacture the product has been tested and shown to be free of known infectious agents. The cell culture process used in the manufacture of the product employs no additives of human or animal origin. The purification process includes solvent-detergent treatment and nano-filtration steps dedicated to viral clearance. The product product ultimate comes from recombinant human prethrombin-1.
• Sequences: MAHVRGLQLPGCLALAALCSLVHSQHVFLAPQQARSLLQRVRRANTFLEEVRKGNLERECVEETCSYEEAFEALESSTATDVFWAKYTACETARTPRDKLAACLEGNCAEGLGTNYRGHVNITRSGIECQLWRSRYPHKPEINSTTHPGADLQENFCRNPDSSTTGPWCYTTDPTVRRQECSIPVCGQDQVTVAMTPRSEGSSVNLSPPLEQCVPDRGQQYQGRLAVTTHGLPCLAWASAQAKALSKHQDFNSAVQLVENFCRNPDGDEEGVWCYVAGKPGDFGYCDLNYCEEAVEEETGDGLDEDSDRAIEGRTATSEYQTFFNPRTFGSGEADCGLRPLFEKKSLEDKTERELLESYIDGRIVEGSDAEIGMSPWQVMLFRKSPQELLCGASLISDRWVLTAAHCLLYPPWDKNFTENDLLVRIGKHSRTRYERNIEKISMLEKIYIHPRYNWRENLDRDIALMKLKKPVAFSDYIHPVCLPDRETAASLLQAGYKGRVTGWGNLKETWTANVGKGQPSVLQVVNLPIVERPVCKDSTRIRITDNMFCAGYKPDEGKRGDACEGDSGGPFVMKSPFNNRWYQMGIVSWGEGCDRDGKYGFYTHVFRLKKWIQKVIDQFGE
• Species: Human
• Molecular Weight: Not Available
• Source: CHO
• Purity: >99% by SDS-Page and HPLC analysis
• Cas No: 869858-13-9
• Formula: Not Available
• Endotoxin Level: <0.001 EU per 1 μg by the LAL method
• Biological Activity: 1000U/ml

Pharmaceutical Information

• Pharmaceutical Application: Thrombin Alfa
• Applications: Indicated to aid hemostasis whenever oozing blood and minor bleeding from capillaries and small venules is accessible and control of bleeding by standard surgical techniques (such as suture, ligature, or cautery) is ineffective or impractical in adults and pediatric populations greater than or equal to one month of age. Additionally, the product can be used in conjunction with an absorbable gelatin sponge, USP.
• Examples of Clinical Use: Oozing blood and minor bleeding
• Pharmacodynamics: As the product, a recombinant thrombin, is considered to be identical in amino acid sequence and structural similarity to naturally occurring human thrombin, it is believed that the product shares the same pharmacodynamics as endogenous or natural human thrombin coagulation factor. In the natural blood coagulation pathway of the human body, thrombin functions as a coagulation factor that converts clotting factor XI to XIa, factor VIII to VIIIa, V to Va, fibrinogen to fibrin, and XIII to XIIIa. Specifically, clotting factor XIIIa is a transglutaminase that catalyzes the formation of covalent bonds between the lysine and glutamine residues found in fibrin. These covalent bonds assist in increasing the stability of the fibrin clot. Additionally, thrombin also promotes the activation and aggregation of platelets by way of activating protease-activated receptors on the cell membranes of platelets.
• Mechanism of action: Specifically, thrombin alfa is a human serine protease that promotes hemostasis and acts locally when applied topically to a site of bleeding. In particular, thrombin alfa activates platelets and cleaves fibrinogen to fibrin, leading directly to clot formation. It also activates clotting factor XIII, leading to fibrin cross-linking and clot stability. The ability of thrombin alfa to bypass the initial enzymatic steps of the coagulation pathway provides a clear rationale as to why thrombin alfa may be used as a topical haemostatic agent.
• Affected organisms: Humans and other mammals
• Targets: Target 1. Coagulation factor XI; Target 2. Coagulation factor VIII; Target 3. Coagulation factor V; Target 4. Coagulation factor XIII A chain; Target 5. Coagulation factor XIII B chain; Target 6. Fibrinogen alpha chain; Target 7. Fibrinogen beta chain; Target 8. Fibrinogen gamma chain