Összes fotó(3)
Fontos dokumentumok
SRE0045
Luciferase from Photinus pyralis (firefly)
recombinant, expressed in E. coli, lyophilized powder, ≥10×1010 units/mg protein
Szinonimák:
Luciferase firefly
Bejelentkezésa Szervezeti és Szerződéses árazás megtekintéséhez
Összes fotó(3)
About This Item
CAS-szám:
MDL-szám:
UNSPSC kód:
12352204
NACRES:
NA.54
Javasolt termékek
rekombináns
expressed in E. coli
Minőségi szint
form
lyophilized powder
specifikus aktivitás
≥10×1010 units/mg protein
molekulatömeg
62 kDa
alkalmazás(ok)
diagnostic assay manufacturing
tárolási hőmérséklet
−20°C
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Alkalmazás
Firefly luciferase is used extensively in molecular and cell biology, in particular for the efficient detection and quantitation of ATP and as a reporter for genetic function.
Biokémiai/fiziológiai hatások
Firefly luciferase is a 62 kDa protein that catalyzes the production of light. The enzyme requires ATP, molecular oxygen, and the heterocyclic compound, firefly luciferin, to generate light in a two-step process. The light producing reaction is initiated by luciferin activation (adenylation of its carboxylate group) and proceeds in the presence of molecular oxygen to yield a photon of yellow-green light.
Egység definíció
One luciferase enzyme unit will produce one Relative Light Unit (RLU) at 20-25 °C over a 10 second period, measured in 100 μl assay mixture containing 40 pmol ATP and 15 nmol luciferin in Tris-glycine buffer, pH 7.6, using a GloMax 20/20 Luminometer.
Unit Definition Conversion Factor: There are approximately 9000 Relative Light Units (RLU) per one traditional Light Unit that uses a peak height equivalent to 0.02 μCi of 14C in a PPO/POPOP cocktail.
Unit Definition Conversion Factor: There are approximately 9000 Relative Light Units (RLU) per one traditional Light Unit that uses a peak height equivalent to 0.02 μCi of 14C in a PPO/POPOP cocktail.
Fizikai forma
Supplied as a lyophilized powder containing HEPES, pH 7.5, NaCl, MgCl2, EDTA, DTT and a carbohydrate stabilizer.
This product is a recombinant luciferase (62 kDa) from Photinus pyralis (American firefly) produced from the luc gene expressed in E. coli.
Elkészítési megjegyzés
To obtain maximal solubility it is important to reconstitute the enzyme at a high salt concentration, such as 1 M Tris buffer with any counter ion at pH 7-8. The enzyme can be prepared at a concentration of up to 5 mg protein/ml. Do not vortex and avoid agitation.
After reconstitution, the enzyme solutions can kept at 4-8 °C for up to 2 days or frozen in working aliquots at -20°C for at least one month. Repeated freezing and thawing is not recommended.
After reconstitution, the enzyme solutions can kept at 4-8 °C for up to 2 days or frozen in working aliquots at -20°C for at least one month. Repeated freezing and thawing is not recommended.
Figyelmeztetés
Danger
Figyelmeztető mondatok
Óvintézkedésre vonatkozó mondatok
Veszélyességi osztályok
Eye Dam. 1 - Resp. Sens. 1
Tárolási osztály kódja
11 - Combustible Solids
WGK
WGK 3
Lobbanási pont (F)
Not applicable
Lobbanási pont (C)
Not applicable
Analitikai tanúsítványok (COA)
Analitikai tanúsítványok (COA) keresése a termék sarzs-/tételszámának megadásával. A sarzs- és tételszámok a termék címkéjén találhatók, a „Lot” vagy „Batch” szavak után.
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Cikkek
Firefly luciferase is a sensitive reporter for gene studies due to its absence in mammalian cells or tissues.
Tudóscsoportunk valamennyi kutatási területen rendelkezik tapasztalattal, beleértve az élettudományt, az anyagtudományt, a kémiai szintézist, a kromatográfiát, az analitikát és még sok más területet.
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