United States Biological Corporation
Explore United States Biological Corporation recombinant proteins, amino acids, life science buffers, and more for your laboratory or classroom needs.
United States Biological Corporation RNA MS2 Phage (Ribonucleic Acid) | 5ul
RNA MS2 Phage (Ribonucleic Acid) | 5ul
United States Biological Corporation Mouse Anti-Phosphatase, Alkaline, Liver, Bone, Kidney (Akp2, ALPI, ALPL) 100ug
Undifferentiated human Embryonal Carcinoma (EC) and Embryonic Stem (ES) cells have been shown to express very high levels of Alkaline Phosphatase isozyme that is indistinguishable from the isozyme found in liver, bone and kidney. Expression levels of AP decrease following stem cell differentiation. This antibody can be used to monitor the expression of the human Liver/Bone/Kidney isozyme of Alkaline Phosphatase (AP), and hence the differentiation status of human EC and ES cells by Flow Cytometry.
United States Biological Corporation ANTI A-SYNUCLEIN C-TERM
Synnuclein family of proteins is abundantly expressed in neuronal cytosol and presynaptic terminals. In vertebrates they are encoded by three different genes. Synucleins have been specifically implemented in three major diseases: Alzheimers (AD), Parkinsons (PD) and breast cancer. In AD, a peptide derived from alpha-synuclein forms an intrinsic component of plaque amyloid. In PD, an alpha-synuclein accumulates in Lewy bodies. An allele of alpha-synuclein has been linked to many familial cases of PD. In breast cancer increased expression of gamma synuclein correlates with the disease progression. Synucleins appear to be involved in the membrane plasticity in developing song control system of songbirds. Applications: Suitable for use in Immunohistochemistry. Other applications not tested. Recommended Dilutions: Immunohistochemistry (frozen/ paraffin): 1:1000 Optimal dilutions to be determined by the researcher. Storage and Stability: Lyophilized powder may be stored at -20 �C.
United States Biological Corporation X/GAL 40MG PER ML/DMF 10ML EA
Blue substrate used in the detection of b-galactosidase in bacteria or phage as a selection agent for cloning experiments utilizing the lacZ vector. Colonies expressing b-galactosidase will appear blue in the presence of XGAL. Others will appear white. Gene Cloning: In gene cloning, X-gal is used as a visual indication of whether a cell expresses a functional ²-galactosidase enzyme in a technique called blue/white screening. This method of screening is a convenient way of distinguishing a successful cloning product from other unsuccessful ones. The blue/white screening method relies on the principle of ±-complementation of the ²-galactosidase gene, where a fragment of the lacZ gene (lacZ±) in the plasmid can complement another mutant lacZ gene (lacZ”M15) in the cell. Both genes by themselves produce non-functional peptides, however, when expressed together, as when a plasmid containing lacZ± is transformed into a lacZ”M15 cells, they form a functional ²-galactosidase.
United States Biological Corporation Erythromycin A 9,11-Imino Ether, 161193-44-8
Molecular Formula C37H66N2O12, Purity ≥95%, Molecular Weight 730.93, Melting Point >134ºC (dec.), Solubility: Chloroform (slightly), DMSO (Slightly) Methanol (slightly). Erythromycin A 9,11-Imino Ether is an impurity in the synthesis of Erythromycin, a macrolide antibiotic with broad spectrum of antibacterial activity.
United States Biological Corporation ANTI-HLA CLASS 1 ANTIGEN A11
Anti-HLA Class 1 Antigen A11 (Clone 4i93)
United States Biological Corporation RABBIT ANTI-CLARA CELL PROTEIN
Rabbit Anti-Clara Cell Protein (CC16, CC10, Uteroglobin, Urinary Protein 1, Clara Cell Secretory Protein, CCSP) 100ul
United States Biological Corporation CLEC12B, CT,PAB RB XHU
CLEC12B, CT (CLEC12B, C-type lectin domain family 12 member B, Macrophage antigen H) Pab Rb xHu
United States Biological Corporation Anti-CD25
Anti-CD25 (Tac antigen, p55, Interleukin 2 Receptor alpha, IL2Ra, T Cell Growth Factor Receptor).
United States Biological Corporation Dulbecco’s MEM (DMEM) F-12 w/o Tryptophan (Powder) 10L
Dulbecco’s MEM is the most widely used modification of BME. It contains a 4-fold higher concentration of amino acids and vitamins. Non-essential amino acids and certain essential trace elements were added. The bicarbonate concentration was increased. The standard formula for DMEM is with 1000mg/ml glucose. DMEM was originally developed for the culture of mice embryonic cells. Today, it finds a broad application of serum free culture of normal and transformed mouse and chicken cells.
United States Biological Corporation DROP OUT MIX - LEUCINE 100G
Drop-out Mix Complete (DOC) is used as a supplement to Drop-out Base for making synthetic, complete media formulations in accordance with Methods in Yeast Genetics. All lots are quality control tested using the appropriate yeast strains and transformants. Convenient Powders Useful for One-Hybrid and Two-Hybrid Systems Competitively Priced...! Dust-Free: Specially milled powder blends are designed to eliminate or greatly reduce airborne particulates Homogeneous: Proprietary blending technology ensures complete mixing of components Companion Products: D9500: Drop-out Base With Glucose (Powder) D9501: Drop-out Base With Raffinose (Powder) D9502: Drop-out Base With Galactose (Powder) D9510: Drop-out Base With Glucose and Agar (Powder) D9511: Drop-out Base With Raffinose and Agar (Powder) D9512: Drop-out Base With Galactose and Agar (Powder) Y2020: Yeast Nitrogen Base w/ AA & w/ AS, w/o Carbohydrate (YNB) (Powder)
United States Biological Corporation RPMI 1640 Medium Modified without L-Glutamine, without Amino Acids, Glucose (Powder), 10L
RPMI 1640 is used for the culture of human normal and neoplastic leukocytes. RPMI 1640 was developed by Moore et. al. at Roswell Park Memorial Institute. Appearance: Pink, homogeneous, free flowing powder Solubility: Magenta, clear, complete pH: As reported Endotoxin: 1EU/ml
United States Biological Corporation TRIS BASE ULTRAPURE 1KG
Tris is one of the most widely used buffers in molecular biology and cell culture due to its low toxicity, stability and buffering capacity. Purity: ≥99.9% Appearance: White, crystalline powder pH (1M): 10.5-11.5 pKa: 8.0-8.4 Absorbance (260nm): ≤0.06 Absorbance (280nm): ≤0.05 Absorbance (290nm): ≤0.2 Solubility (1M): Colorless, clear, complete Loss on Drying: ≤0.2% Melting Point: 168-172°C Heavy Metals (Pb): ≤0.0001% Arsenic: ≤0.0001% Calcium: ≤0.0001% Copper: ≤0.0001% Iron: ≤0.0005% Magnesium: ≤0.0001% Insoluble Matter: ≤0.005% Residue on Ignition: ≤0.1% RNase: DNase: Protease: Meets specifications.
United States Biological Corporation Tris Base Ultrapure, 77-86-1, MFCD00004679, 5kg
Molecular Formula C₄H₁₁NO₃, Purity ≥99.9%, Molecular Biology Grade, Molecular Weight 121.14, Tris is one of the most widely used buffers in molecular biology and cell culture due to its low toxicity, stability and buffering capacity.