Abbreviation
Recombinant Human F11 protein (Active)
Purity
Greater than 95% as determined by SDS-PAGE.
Endotoxin
Less than 1.0 EU/ug as determined by LAL method.
Activity
①Measured by its binding ability in a functional ELISA. Immobilized Human F11 at 2 μg/mL can bind Anti-F11 recombinant antibody (CSB-RA007916MA1HU). The EC50 is 0.2442-0.2820 ng/mL.
②Measured by its ability to cleave the fluorogenic peptide substrate, t-butyloxycarbonyl-Ile-Glu-Gly-Arg-7-amido-4-methylcoumarin (Boc-IEGR-AMC). The specific activity is >300 pmol/min/µg.
Alternative Names
Coagulation factor XI; EC:3.4.21.27; FXI; Plasma thromboplastin antecedent (PTA); F11
Species
Homo sapiens (Human)
Expression Region
19-625aa
Target Protein Sequence
ECVTQLLKDTCFEGGDITTVFTPSAKYCQVVCTYHPRCLLFTFTAESPSEDPTRWFTCVLKDSVTETLPRVNRTAAISGYSFKQCSHQISACNKDIYVDLDMKGINYNSSVAKSAQECQERCTDDVHCHFFTYATRQFPSLEHRNICLLKHTQTGTPTRITKLDKVVSGFSLKSCALSNLACIRDIFPNTVFADSNIDSVMAPDAFVCGRICTHHPGCLFFTFFSQEWPKESQRNLCLLKTSESGLPSTRIKKSKALSGFSLQSCRHSIPVFCHSSFYHDTDFLGEELDIVAAKSHEACQKLCTNAVRCQFFTYTPAQASCNEGKGKCYLKLSSNGSPTKILHGRGGISGYTLRLCKMDNECTTKIKPRIVGGTASVRGEWPWQVTLHTTSPTQRHLCGGSIIGNQWILTAAHCFYGVESPKILRVYSGILNQSEIKEDTSFFGVQEIIIHDQYKMAESGYDIALLKLETTVNYTDSQRPICLPSKGDRNVIYTDCWVTGWGYRKLRDKIQNTLQKAKIPLVTNEECQKRYRGHKITHKMICAGYREGGKDACKGDSGGPLSCKHNEVWHLVGITSWGEGCAQRERPGVYTNVVEYVDWILEKTQAV
Note: The complete
sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is
translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application,
please explicitly request the full and complete sequence of this protein before ordering.
Protein Length
Full Length of Mature Protein
Tag Info
C-terminal 10xHis-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Buffer
Lyophilized from a 0.2 μm sterile filtered PBS, 6% Trehalose, pH 7.4
Storage
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Lead Time
3-7 business days
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.
Shelf Life
The shelf life is related to many factors, storage state, storage temperature and the stability of the product itself. Generally, the shelf life of lyophilized form is 6 months at -20°C/-80°C from the date of receipt.
Datasheet & COA
Please contact us to get it.
Images
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(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Activity
Measured by its binding ability in a functional ELISA. Immobilized Human F11 at 2 μg/ml can bind Anti-F11 recombinant antibody (CSB-RA007916MA1HU). The EC50 is 0.2442-0.2820 ng/mL.
-
Activity
Measured by its ability to cleave the fluorogenic peptide substrate, t-butyloxycarbonyl-Ile-Glu-Gly-Arg-7-amido-4-methylcoumarin (Boc-IEGR-AMC). The specific activity is >300 pmol/min/µg.
Description
Factor XI occupies a critical node in the intrinsic coagulation pathway, and its dysregulation underlies both thrombotic disorders and hemophilia C, making it a priority target for anticoagulant drug development. This full-length mature protein (aa 19–625) demonstrates robust catalytic function with a specific activity exceeding 300 pmol/min/µg against the fluorogenic substrate Boc-IEGR-AMC, providing a quantitative benchmark for inhibitor screening and IC50 determination in drug candidate evaluation. The protein also exhibits strong antibody binding in functional ELISA with an EC50 of 0.24–0.28 ng/mL, supporting its use as a positive control in enzyme-linked assays and for kinetic parameter analysis including Km and Vmax measurements. Purity greater than 95% by SDS-PAGE and endotoxin levels below 1.0 EU/µg satisfy the quality thresholds commonly required for accurate enzymatic activity assays, substrate specificity profiling, and inhibition mechanism studies in cardiovascular research.