Antithrombin III/Serpin C1 Protein, Human (432a.a, HEK293, His)

Antithrombin III/Serpin C1 protein, the main plasma serine protease inhibitor, regulates the blood coagulation cascade. It inhibits thrombin, matriptase-3/TMPRSS7, and factors IXa, Xa, and XIa, with enhanced potency in the presence of heparin. Furthermore, it forms a protease-inhibiting heterodimer with TMPRSS7. Antithrombin III/Serpin C1 Protein, Human (432a.a, HEK293, His) is the recombinant human-derived Antithrombin III/Serpin C1 protein, expressed by HEK293 , with C-His labeled tag. The total length of Antithrombin III/Serpin C1 Protein, Human (432a.a, HEK293, His) is 432 a.a., with molecular weight of 55-60 kDa.

Antithrombin III/Serpin C1 protein, the principal serine protease inhibitor in plasma, plays a crucial role in regulating the blood coagulation cascade. It effectively inhibits thrombin, matriptase-3/TMPRSS7, and factors IXa, Xa, and XIa, with its inhibitory activity significantly potentiated in the presence of heparin. Additionally, Antithrombin III/Serpin C1 forms a protease-inhibiting heterodimer with TMPRSS7.

Measured by its ability to inhibit thrombin cleavage of a fluorogenic peptide substrate Boc-VPR-AMC and the IC₅₀ value is < 5 nM.

Human

HEK293

C-His

P01008 (S35-K464)

462  [NCBI]

SPVDICTAKPRDIPMNPMCIYRSPEKKATEDEGSEQKIPEATNRRVWELSKANSRFATTFYQHLADSKNDNDNIFLSPLSISTAFAMTKLGACNDTLQQLMEVFKFDTISEKTSDQIHFFFAKLNCRLYRKANKSSKLVSANRLFGDKSLTFNETYQDISELVYGAKLQPLDFKENAEQSRAAINKWVSNKTEGRITDVIPSEAINELTVLVLVNTIYFKGLWKSKFSPENTRKELFYKADGESCSASMMYQEGKFRYRRVAEGTQVLELPFKGDDITMVLILPKPEKSLAKVEKELTPEVLQEWLDELEEMMLVVHMPRFRIEDGFSLKEQLQDMGLVDLFSPEKSKLPGIVAEGRDDLYVSDAFHKAFLEVNEEGSEAAASTAVVIAGRSLNPNRVTFKANRPFLVFIREVPLNTIIFMGRVANPCVK

55-60 kDa

Greater than 90% as determined by reducing SDS-PAGE.

Lyophilized powder

Lyophilized from a 0.2 μm filtered solution of PBS or 20 mM PB, 150 mM NaCl, pH 7.4.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.