G4155
β-Galactosidase from Escherichia coli
aqueous glycerol suspension, ≥500 units/mg protein (biuret)
동의어(들):
β-D-Galactoside galactohydrolase, Lactase
조직 및 계약 가격을 보려면 로그인를 클릭합니다.
크기 선택
제품정보 (DICE 배송 시 비용 별도)
CAS 번호:
UNSPSC Code:
12352204
NACRES:
NA.54
MDL number:
Specific activity:
≥500 units/mg protein (biuret)
form
aqueous glycerol suspension
specific activity
≥500 units/mg protein (biuret)
mol wt
465 kDa
storage temp.
−20°C
Quality Level
유사한 제품을 찾으십니까? 방문 제품 비교 안내
General description
Tetramer molecular weight 465 kDa (subunits 116.3 kDa each)
Application
β-Galactosidase is used in the enzymatic assays in the synthesis of imidazolo-pyrrolidinoses.
Biochem/physiol Actions
β-galactosidase cleaves lactose into its monosaccharide components, glucose and galactose. It also catalyses the transglycosylation of glucose into allolactose, the inducer of β-galactosidase, in a feedback loop.
Physical form
Suspension in 50% glycerol, 5 mM Tris buffer salts, 5 mM magnesium chloride, 0.5 mM DTT, 0.5 mM mercaptoethanol. pH 7.4
Other Notes
Loss of enzymatic activity can occur if this enzyme is frozen. This enzyme is provided in a 50% glycerol solution and will not freeze if stored at -20° Celsius. It is not recommended that this enzyme preparation be stored in an ultracold freezer (-60 to -100° Celsius).
One unit will hydrolyze 1.0 μmole of o-nitrophenyl β-D-galactoside to o-nitrophenol and D-galactose per min at pH 7.3 at 37 °C.
저장 등급
10 - Combustible liquids
flash_point_f
Not applicable
flash_point_c
Not applicable
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
Théophile Tschamber et al.
Bioorganic & medicinal chemistry, 11(17), 3559-3568 (2003-08-07)
The syntheses of four glyco-imidazoles, which are pentose-derivatives belonging to the D-series, as well as the syntheses of their L-enantiomers, are reported. Starting from the known linear xylo, lyxo, arabino, and ribo imidazolo-pentoses in both the L- and the D-series
Olga Ermakova et al.
Brain sciences, 11(6) (2021-07-03)
Acquisition of detailed anatomical and molecular knowledge from intact biological samples while preserving their native three-dimensional structure is still a challenging issue for imaging studies aiming to unravel a system's functions. Three-dimensional micro-CT X-ray imaging with a high spatial resolution
Christophe Laumonnerie et al.
Development (Cambridge, England), 141(3), 594-603 (2014-01-23)
The establishment of anatomically stereotyped axonal projections is fundamental to neuronal function. While most neurons project their axons within the central nervous system (CNS), only axons of centrally born motoneurons and peripherally born sensory neurons link the CNS and peripheral
H Morreau et al.
The Journal of biological chemistry, 264(34), 20655-20663 (1989-12-05)
We have isolated two cDNAs encoding human lysosomal beta-galactosidase, the enzyme deficient in GM1-gangliosidosis and Morquio B syndrome, and a beta-galactosidase-related protein. In total RNA from normal fibroblasts a major mRNA of about 2.5 kilobases (kb) is recognized by cDNA
A Hinek
Biological chemistry, 377(7-8), 471-480 (1996-07-01)
The 67-kDa protein identical to the enzymatically inactive spliced variant of beta-galactosidase is a major component of the non-integrin cell surface receptor expressed on fibroblasts, smooth muscle cells, chondroblasts, leukocytes, and certain cancer cell types. It recognizes several non-identical hydrophobic
자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..
고객지원팀으로 연락바랍니다.