A6362
Alpha-lytic protease
Sinónimos:
Alpha-lytic endopeptidase, alphaLP
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About This Item
Productos recomendados
origen biológico
bacterial
Nivel de calidad
formulario
liquid
actividad específica
≥0.0005 U/mg
mol peso
19,860 Da
pH óptimo
5.0(storage)
7.5(activity)
pI
9.69
Condiciones de envío
dry ice
temp. de almacenamiento
−70°C
Descripción general
Alpha-lytic protease (aLP) is an alternative specificity protease for proteomics applications. This protease cleaves after T, A, S, and V residues. It generates peptides of similar average length as trypsin.
aLP was first isolated from the myxobacterium Lysobacter enzymogenes. The pro-form of aLP is 397 amino acids long. In its mature form, aLP is 198 amino acids long. Its tertiary structural core resembles those of pancreatic serine proteases.
Crystal structure studies of aLP have been reported. Several studies are available on the active site and catalytic mechanism of aLP. The role of the pro-region in the activation, secretion and folding of aLP has been studied.
The activity of aLP in the presence of various solution components is as follows:
aLP was first isolated from the myxobacterium Lysobacter enzymogenes. The pro-form of aLP is 397 amino acids long. In its mature form, aLP is 198 amino acids long. Its tertiary structural core resembles those of pancreatic serine proteases.
Crystal structure studies of aLP have been reported. Several studies are available on the active site and catalytic mechanism of aLP. The role of the pro-region in the activation, secretion and folding of aLP has been studied.
The activity of aLP in the presence of various solution components is as follows:
- 0.1% sodium deoxycholate: ~1.75-fold enhanced activity
- 1.0% sodium deoxycholate: ~60% activity
- 0.1% SDS: ~50% activity
- 1.0% SDS: ~40% activity
- 1 M guanidine HCl: ~20% activity
- 4 M guanidine HCl: ~1% activity (essentially inactivated)
Definición de unidad
One unit will produce one mmole of p-nitroaniline per minute from N-succinyl-Ala-Ala-Ala-PNA at 25 °C at pH 7.5
Forma física
Supplied as a solution in 10 mM sodium acetate buffer, pH 5.0.
Código de clase de almacenamiento
12 - Non Combustible Liquids
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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C A Bauer et al.
European journal of biochemistry, 120(2), 289-294 (1981-11-01)
The active site of alpha-lytic protease has been studied with a number of synthetic peptides and compared with similar data published for elastase. The kinetic data indicate that the active site of alpha-lytic protease extends over at least six subsites
M Fujinaga et al.
Journal of molecular biology, 184(3), 479-502 (1985-08-05)
The structure of alpha-lytic protease, a serine protease produced by the bacterium Lysobacter enzymogenes, has been refined at 1.7 A resolution. The conventional R-factor is 0.131 for the 14,996 reflections between 8 and 1.7 A resolution with I greater than
Molecular structure of the alpha-lytic protease from Myxobacter 495 at 2.8 Angstroms resolution.
G D Brayer et al.
Journal of molecular biology, 131(4), 743-775 (1979-07-15)
Jesse G Meyer et al.
Molecular & cellular proteomics : MCP, 13(3), 823-835 (2014-01-16)
Bottom-up proteomics studies traditionally involve proteome digestion with a single protease, trypsin. However, trypsin alone does not generate peptides that encompass the entire proteome. Alternative proteases have been explored, but most have specificity for charged amino acid side chains. Therefore
The α-Lytic Protease.
Whitaker, D.R.
Methods in Enzymology, 19, 599-613 (1970)
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