DL-Glyceraldehyde is a substrate for the enzyme aldose reductase.

DL-Homocysteic acid is a glutamic acid analog and a receptor agonist of NMDA. It disrupts calcium homeostasis and induces degeneration of spinal motor neurons, and has a cytotoxic effect on the central nervous system. DL-Homocysteic acid also induces oxidative stress in brain tissues and inhibits arterial pressure, heart rate and diaphragm electromyogram activity. Complexes with DL-Homocysteic acid and cations like sodium and zinc have been synthesized.

DL-Indole-3-lactic acid is a reagent used in chemical synthesis. It is one of the building blocks of the sweetener Monatin and Fab I inhibitors. It is a tryptophan metabolite of Bifidobacterium.

DL-Methionine sulfoxide the product of oxidation of the sulfur the naturally occurring amino acid methionine. This product is a mixture of both methionine sulfoxide enantiomers.

Proline and its derivatives are often used as asymmetric catalysts in organic reactions. The CBS reduction and proline catalysed aldol condensation are prominent examples. L-Proline is an osmoprotectant, and therefore is used in many pharmaceutical, biotechnological applications.

GoldBio’s DL39 (DE3) Chemically Competent E. coli cells are engineered with a T7 expression system to transform and express proteins in order to label residues such as phenylalanine or leucine. DL39 (DE3) Chemically Competent E. coli cells are deficient in the aromatic (TyrB), branched-chain (JIvE), and aspartate (AspC) transaminases and are auxotrophic for aspartic acid, isoleucine, leucine, phenylananine, tyrosine, and valine residues.

Product Specifications Competent cell type: Chemically Competent Derivative of: DL39 Species: E. coli Transformation efficiency: ≥1 x 107 cfu/µg pUC19 DNA Blue/white screening: Yes

Luciferin is a common bioluminescent reporter used for in vivo imaging of the expression of the luciferase . This substrate for the firefly luciferase enzyme utilizes ATP and Mg2+ as cofactors and emits a characteristic yellow-green emission in the presence of oxygen, which shifts to red light in vivo at 37°C.

Luciferin is a common reagent used throughout the biotechnology field and specifically for in vivo imaging. Luciferase labeled tumor cells, stem cells or infectious diseases are often inoculated into research animals such as rats or mice for investigation. The injection of luciferin allows for the real-time, noninvasive monitoring of disease progression and/or drug efficacy in these model systems through Bioluminescence Imaging (BLI).

DMNPE-caged luciferin can be used to measure intracellular functions since it readily crosses cell membranes. Once it is inside the cell, active luciferin can be released by UV light or by the action of endogenous intracellular esterases. DMNPE-caged luciferin makes it easier to follow the changes in gene expression in live cells. It can also be used in combination with DMNPE-caged ATP.

Dimethylsulfoxide (DMSO) is a very polar organic compound that is useful in organic chemistry for solubilizing organic and inorganic compounds. DMSO is also used as a cryoprotectant for cell media, preventing the formation of ice crystals, which would otherwise damage cells. DMSO can be used in PCR reactions to inhibit the self-complementation of DNA or PCR primers and increase amplification, especially for DNA sequences, which have GC rich sequences.

DNase I (Deoxyribonuclease I) is a dialyzed lyophilized powder from bovine pancreas that has been purified by chromatography.

Bovine pancreatic deoxyribonuclease (DNase) is an endonuclease, which splits phosphodiester linkages preferentially adjacent to a pyrimidine nucleotide yielding polynucleotides with a free hydroxyl group at the 3' position and a phosphate group at the 5' position. The optimum pH is 7.8.

DNase I is activated by bivalent metals and inhibited by chelating agents such as EDTA and SDS. DNase I can be stabilized against proteolytic digestion by 5mM Ca2+.

DNase I (Deoxyribonuclease I) is a dialyzed lyophilized powder from bovine pancreas that has been purified by chromatography.

Bovine pancreatic deoxyribonuclease (DNase) is an endonuclease which splits phosphodiester linkages, preferentially adjacent to a pyrimidine nucleotide yielding polynucleotides with a free hydroxyl group at the 3' position and phosphate group at the 5' position. The optimum pH is 7.8.

DNase I is activated by bivalent metals, and inhibited by chelating agents such as EDTA and SDS. DNase I can be stabilized against proteolytic digestion by 5mM Ca 2+.

DNase I (Deoxyribonuclease I) is a dialyzed lyophilized powder from bovine pancreas that has been purified by chromatography.

Bovine pancreatic deoxyribonuclease (DNase) is an endonuclease which splits phosphodiester linkages, preferentially adjacent to a pyrimidine nucleotide yielding polynucleotides with a free hydroxyl group at the 3' position and phosphate group at the 5' position. The optimum pH is 7.8.

DNase I is activated by bivalent metals, and inhibited by chelating agents such as EDTA and SDS. DNase I can be stabilized against proteolytic digestion by 5 mM Ca2+.

GoldBio’s 2’-Deoxynucleoside 5’-triphosphate mix is an aqueous solution containing dATP, dCTP, dGTP and dTTP, each at a final concentration of 10mM. This mixture has been tested for performance in a wide size-range of PCR templates with Taq and Pfu DNA polymerases.

The dNTP solution is ideal for PCR, cDNA synthesis, DNA sequencing and labeling procedures, and it has been performance tested with Q-PCR and long PCR (30 kb).