Human Serpin C1/Antithrombin-III Antibody

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Product Details
Citations (3)
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Reviews (1)

Human Serpin C1/Antithrombin-III Antibody Summary

Species Reactivity
Detects human Serpin C1/Antithrombin-III in direct ELISAs and Western blots. In direct ELISAs, approximately 45% cross-reactivity with recombinant mouse (rm) Serpin C1 is observed and less than 2% cross‑reactivity with recombinant human (rh) Serpin A1, rhSerpin A3, rhSerpin A4, rhSerpin A5, rhSerpin F2, rmSerpin D1 and rhPEDF is observed.
Polyclonal Goat IgG
Antigen Affinity-purified
Mouse myeloma cell line NS0-derived recombinant human Serpin C1/Antithrombin-III
Accession # P01008
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.


Recommended Concentration
Western Blot
0.1 µg/mL
Recombinant Human Serpin C1/Antithrombin-III (Catalog # 1267-PI)
25 µg/mL
Conditioned cell culture medium spiked with Recombinant Human Serpin C1/
Antithrombin-III (Catalog # 1267-PI), see our available Western blot detection antibodies
Measured by its ability to neutralize Recombinant Human Serpin C1 (0.8 µg/mL, Catalog # 1267-PI) inhibition of Recombinant Human Coagulation Factor II/Thrombin (0.05 µg/mL, Catalog # 1473-SE) cleavage of the fluorogenic peptide substrate Boc-VPR-AMC (100 µM, Catalog # ES011). The Neutralization Dose (ND50) is typically 4.6 µg/mL.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Reconstitution Calculator

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Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Serpin C1/Antithrombin-III

Serpin C1 is a member of the Serpin superfamily of the serine protease inhibitors (1). It is the principal plasma Serpin of blood clotting proteases and inhibits thrombin as well as several factors such as Xa (2). Similar to Serpins A5 and D1, its thrombin inhibitory activity is enhanced by heparin. Hereditary and acquired Serpin C1 deficiency is the cause of an increased thrombotic tendency in many cases (3). For example, acquired Serpin C1 deficiency is a common condition in sepsis, after major trauma or surgery (4).

  1. Silverman, G.A. et al. (2001) J. Biol. Chem. 276:33293.
  2. Chuang, Y.-J. et al. (2001) Biochemistry 40:6670.
  3. Vinazzer, H. (1999) Semin. Thromb. Hemost. 25:257.
  4. Risberg, B. (1998) Blood Coagul. Fibrinolysis Suppl. 3:S3.
Entrez Gene IDs
462 (Human); 11905 (Mouse)
Alternate Names
Antithrombin-III; AT3antithrombin-III; ATIII; ATIIIantithrombin III; MGC22579; serine (or cysteine) proteinase inhibitor, clade C (antithrombin), member 1; serine-cysteine proteinase inhibitor clade C member 1; Serpin C1; serpin peptidase inhibitor, clade C (antithrombin), member 1

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Citations for Human Serpin C1/Antithrombin-III Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

3 Citations: Showing 1 - 3
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  1. Genome-wide screens uncover KDM2B as a modifier of protein binding to heparan sulfate
    Authors: RJ Weiss, PN Spahn, AWT Chiang, Q Liu, J Li, KM Hamill, S Rother, TM Clausen, MA Hoeksema, BM Timm, K Godula, CK Glass, Y Tor, PLSM Gordts, NE Lewis, JD Esko
    Nature Chemical Biology, 2021;0(0):.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  2. Markers for neural degeneration and regeneration: novel highly sensitive methods for the measurement of thrombin and activated protein C in human cerebrospinal fluid
    Authors: A Gerasimov, V Golderman, SG Gofrit, SA Aharoni, DN Zohar, Z Itsekson-H, T Fay-Karmon, S Hassin-Bae, J Chapman, N Maggio, E Shavit-Ste
    Neural regeneration research, 2021;16(10):2086-2092.
    Species: Human
    Sample Types: CSF
    Applications: Western Blot
  3. Purification from human milk of matriptase complexes with secreted serpins: mechanism for inhibition of matriptase other than HAI-1.
    Authors: Tseng IC, Chou FP, Su SF, Oberst M, Madayiputhiya N, Lee MS, Wang JK, Sloane DE, Johnson M, Lin CY
    Am. J. Physiol., Cell Physiol., 2008;295(2):C423-31.
    Species: Human
    Sample Types: Milk
    Applications: Western Blot


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Human Serpin C1/Antithrombin-III Antibody
By Bryan Thacker on 11/14/2017
Application: Flow Sample Tested: Purified protein Species: Human

Purified antithrombin bound to cell surface heparan sulfate was detected using 0.2 ug/ml serpin C1/antithrombin antibody and anti-goat-IgG-AlexaFluor488.