The defined antibody reactivity is restricted to Factor VII. To demonstrate the presence of FVII in normal plasma or serum by gel-immunodiffusion or immunoelectrophoresis a concentrate must be prepared, because the normal concentration is below the detection limits of these techniques. The precipitation obtained with the concentrate shows a reaction of identity with that obtained with the purified factor. FVII shows micro-heterogeneity. The antiserum also reacts with FVII molecular variants and with abnormal; molecules (PIVKA VII). In precipitating techniques as electroimmunodiffusion, immunoelectrophoresis, single and double radial immunodiffusion (Mancini, Ouchterlony), bidimensional electrophoresis and neutralization assay. The presence of non-precipitating antibodies has not been assayed. If used in more sensitive test procedures or as catching or detection antibody in solid phase immunoassays specificity controls should always be include. Plasma samples and all assay components must contain EDTA to stabilize the proteins.
Antibody come from
Plasma factor VII is ea vitamin K-dependent glycoprotein (MW 63,000) with an electrophoresis mobility in the beta region. It circulates in plasma in a semi-active form, even in the absence of tissue factor. Then procoagulant activity of FVII can be destroyed by heating to 56ºC. It is unstable below pH 3 and above pH 9. It survives he clotting process and its presence can be demonstrated in serum. After isolation its molecular weight was 44,700. Factor VII is a serine protease depending on a lipid cofactor and can be activated to FVIIa by factors IXa, Xa and XIIIa, thereby linking the intrinsic and extrinsic coagulation systems since FXII and FIX can be activated by kallikrein. The normal adult plasma FVII level is about 0.5 to 1.0 μg/ml. In normal newborn infants the average level is about 50% of the adult concentration. A deficiency of FVII, congenital or acquired, results in a bleeding disorder. The congenital form is rare but the acquired form is commonly seen in association with a deficiency of FII, FIX and FX in liver disease and in patients taking coumarin-type anticoagulant drugs. Both procoagulant activity and FVII-related antigen are depressed. In haemorrhagic disease of the newborn, procoagulant activity is reduced but not the level of the FVII antigen. A similar discrepancy may be seen in congenital deficiencies but in other types FVII antigen will be severely reduced as a result of genetic suppression of synthesis capacity. If still present, the FVII molecules appear to be biologically defective. Heterozygote carriers can now be detected. FVII procoagulant activity and related antigen levels have been shown to correlate directly with the plasma triglyceride concentration. This makes FVII a risk factor for myocardial infarction; immediately following an acute myocardial infarction patients have increased plasma FVII procoagulant activity. FVII is purified from plasma and Freund’s complete adjuvant is used in the first step of the immunization procedure.
Delipidated, heat inactivated, lyophilized, stable whole serum. Sodium azide 1 mg/ml Total protein and IgG concentrations in the antiserum are comparable to those of pooled normal rabbit serum. No foreign proteins added.
Antigen-antibody binding interaction
Rabbit anti Human Factor VII Antibody
Antibody is raised in
Antibody's reacts with
Antibody's reacts with these species
The antiSerum does not cross-react with any other Human plasma proteins as tested in gel-diffusion techniques. Interspecies cross-reactivity is a normal feature of antibodies to plasma proteins, since homologous proteins of different species frequently share antigenic determinants. Cross-reactivity of this antiSerum has not been tested in detail, however in double radial immunodiffusion a reaction with Rhesus Monkey has been observed.
Precipitating polyclonal Rabbit antiSerum to Human coagulation factor VII.
Antibody's suited for
Immunoprecipitation. In immunoelectrophoresis in agarose-plates use 2 μl human plasma or equivalent against 120 μl antiserum. In double radial immunodiffusion use a rosette arrangement with 10 μl antiserum in 3 mm diameter center well and 2 μl plasma samples (neat and serially diluted) in 2 mm diameter peripheral wells. In electroimmunodiffusion the antiserum concentration required in the gel is normally between 1 and 2%. The amount of Factor VII precipitated by 1 ml antiserum is approximately 100 U. One Unit of Factor VII is defined as the amount present in 1 ml normal plasma. On the average this corresponds to 1 μg/ml.
Lyophilized at +4°C--at least 10 years. Reconstituted at or below -20°C--3-5 years. Reconstituted at +4°C--7 days.
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This product is intended FOR RESEARCH USE ONLY, and FOR TESTS IN VITRO, not for use in diagnostic or therapeutic procedures involving humans or animals. This product contains sodium azide. To prevent formation of toxic vapors, do not mix with strong acidic solutions. To prevent formation of potentially explosive metallic azides in metal plumbing, always wash into drain with copious quantities of water. This datasheet is as accurate as reasonably achievable, but Nordic-MUbio accepts no liability for any inaccuracies or omissions in this information.
This antibody needs to be stored at + 4°C in a fridge short term in a concentrated dilution. Freeze thaw will destroy a percentage in every cycle and should be avoided. Antibody against the Hu protein or peptide or recombinant supplied in 1 volumes. Ask for quote if you need bulk. Aplha, transcription related growth factors and stimulating factors or repressing nuclear factors are complex subunits of proteins involved in cell differentiation. Complex subunit associated factors are involved in hybridoma growth, Eosinohils, eritroid proliferation and derived from promotor binding stimulating subunits on the DNA binding complex. NFKB 105 subunit for example is a polypetide gene enhancer of genes in B cells.
Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.
Rabbits are used for polyclonal antibody production by nordc. Rabbit antibodies are very stable and can be stored for several days at room temperature. nordc adds sodium azide and glycerol to enhance the stability of the rabbit polyclonal antibodies. Anti-human, anti mouse antibodies to highly immunogenic selected peptide sequences are" monoclonal like" since the epitope to which they are directed is less than 35 amino acids long.