Ampicillin is a semi-synthetic derivative of penicillin, active as a broad-spectrum antibiotic. It is inactivated by beta-lactamases and for this reason a beta-lactamase inhibitor should be considered when using ampicillin. Against gram-positive bacteria, ampicillin has a similar mode of action as…

Doxycycline is an antibiotic  against gram-positive and gram-negative bacteria. More active biologically than the corresponding 6b-epimer hydrochloride. Derivative of oxytetracycline. A broad spectrum inhibitor used to inhibit matrix metallo-proteinases (MMP) such as type 1 collagenase in…

Goat affinity purified antibody to rat igg (whole molecule) is goat affinity purified antibody to rat IgG (whole molecule) and buffer salts. Analysis Note The total protein is measured by absorbance (A280 nm). Antibody titer is standardized by equivalence-point precipitation. Each affinity…

All blood products should be treated as potentially infectious. Source material from which this product was derived was found negative when tested in accordance with current FDA required tests. No known test methods can offer assurance that products derived from human blood will not transmit…

The antibiotics penicillin and streptomycin are used to prevent bacterial contamination of cell cultures due to their effective combined action against gram-positive and gram-negative bacteria. This solution contains 17,000 - 21,000 units/mL of penicillin and 18.0 - 23.0 mg/mL of streptomycin. …

Anti-Sheep Host: rabbit Form: lyophilized powder

Product is goat affinity purified antibody to human IgA (α-chain) and buffer salts. IgA antibody is a secretory antibody and is present abundantly in mucous linings of gastrointestinal, respiratory and genitourinary tracts, tears and saliva. Thus, secretory IgA contributes to the humoral…

Analysis Note: Useful for stabilizing sulfhydryl-containing enzymes Applications: Dithiothreitol is useful for stabilizing sulfhydryl containing enzymes. Effective in sample buffers for reducing protein disulfide bonds prior to SDS-PAGE. DTT can also be used for reducing the disulfide…

Analysis Note: The total protein is measured using the Biuret procedure with bovine albumin as the standard. To ensure that the product titer falls within the required range, antibody titer is standardized by microtiter plate ELISA with mouse IgG and human IgG. The product is tested for purity…

Preparation Method: The antiserum contains 0.02M sodium phosphate, 0.14M sodium chloride, pH 7.3. No preservative is added. This reagent is the IgG fraction of the antiserum and was prepared by delipidation, ammonium sulfate fractionation and anion exchange chromatography. The IgG content of the…

Product is the lyophilized powder of fluorescein-5-isothiocyanate (FITC "Isomer I")-conjugated goat IgG fraction to human immunoglobulins (IgG,IgA,IgM) and buffer salts. This product is suitable for use as a reagent in immunofluorescence assays (IFA), cell staining (fluorescent…

Blasticidin S is a nucleoside antibiotic that specifically inhibits protein synthesis in both prokaryotes and eukaryotes. Suitable for selection of cells carrying plasmids conferring blasticidin resistance. Blasticidin resistance is conferred by the blasticidin S deaminase genes (bsr from Bacillus…

The total protein is measured using the Biuret procedure with bovine albumin as the standard; F/P ratio is calculated using absorbance at 491.5nm. Antibody titer of the IgG fraction is standardized by equivalence-point precipitation. The IgG fraction is tested for purity and specificity at 40 mg/mL…

Semi-synthetic antibiotic related to penicillin. It is a benzyl penicillin derivative with substitution of a-carboxyl group in the benzyl side chain. The product interferes with final cell wall synthesis of susceptible bacteria. It is completely ionized in the blood. Carbencillin disodium is about…

The total protein is measured using the Biuret procedure with bovine albumin as the standard; F/P ratio is calculated using absorbance at 491.5nm. Antibody titer of the IgG fraction is standardized with an in-house control by immunoelectrophoresis. The IgG fraction is tested for purity and…

Product is the lyophilized powder of rabbit antiserum to sheep red blood cells and buffer salts. The antiserum is prepared by hyperimmunizing rabbits with sheep red blood cells; antiserum is delipidated and made specific by solid-phase absorption. The resulting antiserum is dialyzed into 0.02M…

This antibody diluent is compatible with common stabilizing compounds at pH 7.3. Contains phosphate buffered saline. The buffer is filtered through a 0.2 um filter. Ready-to-use sterile phosphate buffered saline.

Analysis Note The total protein is measured using the Biuret procedure with bovine albumin as the standard. To ensure that the product titer falls within the required range, antibody titer is standardized by microtiter plate ELISA with human IgG. The product is tested for purity and specificity…

Colistin is a polymyxin antibiotic, it is a mixture of cyclic polypeptides colistin A and B. Colistin is effective against most Gram-negative bacilli and is used as a polypeptide antibiotic. Colistin sulfate is used to permeabilize bacterial cell membranes and to study mannose-resistant…

Analysis Note The total protein is measured using the Biuret procedure with bovine albumin as the standard; F/P ratio is calculated using absorbance at 491.5nm. Antibody titer of the IgG fraction is standardized by equivalence-point precipitation. The IgG fraction is tested for purity and…

Analysis Note The total protein is measured by absorbance (A280nm); F/P ratio is calculated using absorbance at 491.5nm. Antibody titer of the affinity purified F(ab')2 fragments is standardized by equivalence-point precipitation. The affinity purified F(ab')2 fragment is tested for…

Anti-Human Clone: LN-3 Isotype: mouse IgG2b Applications: Immunohistology This antibody reacts with the HLA-DR surface antigen on B and T lymphocytes.

Ionomycin is an ionophore produced by the bacterium Streptomyces conglobatus. It is a polyether ionic antibiotic that exhibits an affinity for Ca2+. It is used in research to raise the intracellular level of calcium (Ca2+) and as a research tool to understand Ca2+ transport across biological…

Chloramphenicol is a synthetic antibiotic, which was first isolated from strains of Streptomyces venezuelae. It has a broad spectrum of activity against Gram-positive and Gram-negative bacteria. Chloramphenicol inhibits bacterial protein synthesis by blocking the peptidyl transferase step…

Analysis Note: The total protein is measured using the Biuret procedure with bovine albumin as the standard. To ensure that the product titer falls within the required range, antibody titer is standardized by microtiter plate ELISA with mouse IgG. The product is tested for purity and specificity…

Preparation Method: This product consists of 0.02M sodium phosphate, 0.15M NaCl, pH 7.6, 0.05% Sodium azide. It has been isolated from antisera by immunoaffinity chromatography using antigens coupled to agarose beads. Background Information: IgG is the main antibody type found in plasma…

Product is the lyophilized powder of goat antiserum to guinea pig IgG (whole molecule) and buffer salts. The antiserum is prepared by hyperimmunizing goats with highly purified guinea pig IgG; antiserum is delipidated and made specific by solid-phase absorption. The resulting antiserum is…

This antigen affinity gel is prepared by reaction of purified IgG to activated Sepharose® 4B gel. The washed gel is packaged as a ready-to-use column. The bed volume is 2 mL. IgG affinity gel contains a proprietary ligand that retains most protein found in serum, ascites and culture…

To ensure that the product titer falls within the required range, antibody titer is standardized by microtiter plate ELISA with rabbit IgG. The antibody is tested for purity at 10 mg/mL by immunoelectrophoresis. The antibody is goat IgG; no trace of albumin is detected. Antibody and highly…

Product is goat affinity purified antibody to mouse IgG (whole molecule) and buffer salts. Analysis Note The total protein is measured by absorbance (A280 nm). Antibody titer is standardized by equivalence-point precipitation. Each affinity purified antibody is tested for purity at 10…

L-Thyroxine-BSA polyclonal antibody is used for radioimmunoassays. Reconstitute with 1.0 mL of distilled water and let stand for 30 minutes at room temperature. 1:1,000 (using 0.1 mL/assay) It is recommended that each lab obtain their own optimum working dilution by titration assay.

Anti-Bovine Host: rabbit Form: lyophilized Applications: Immunostaining of acetone-fixed frozen and formalin-fixed, paraffin-embedded tissue sections.