Kit de ensayo de lisozima EnzChek™
Kit de ensayo de lisozima EnzChek™
Invitrogen™

Kit de ensayo de lisozima EnzChek™

El kit de ensayo de lisozima EnzChek™ proporciona a los investigadores un ensayo sencillo y sensible para medir la actividadMás información
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Número de catálogoCantidad
E22013400 ensayos
Número de catálogo E22013
Precio (CLP)
499.418
Each
Añadir al carro de la compra
Cantidad:
400 ensayos
Precio (CLP)
499.418
Each
Añadir al carro de la compra
El kit de ensayo de lisozima EnzChek™ proporciona a los investigadores un ensayo sencillo y sensible para medir la actividad de la lisozima en solución. El aumento de la fluorescencia resultante de la actividad de la lisozima se mide con un fluorímetro o un lector de microplacas de fluorescencia.

Consulte nuestra línea completa de ensayos de microplacas de fluorescencia.

• Detecta concentraciones de actividad de lisozima de tan solo 20 U/ml
• Utiliza ajustes estándar de excitación/emisión de fluoresceína (FITC)
• Su formato permite la medición continua de la actividad de la lisozima

El ensayo utiliza un enfoque innovador para medir la actividad de la lisozima. Se utilizan paredes celulares de Micrococcus lysodeikticus que se han etiquetado extensamente con fluoresceína, lo que provoca la desactivación de la señal de fluorescencia. La enzima lisozima activa hidroliza los vínculos b-(1-4)-glucosídicos entre el N-ácido acetilmurámico y los residuos de N-acetil-D-glucosamina en la pared celular del mucopolisacárido, aliviando la desactivación y produciendo un aumento notable de la fluorescencia que es proporcional a la actividad de la lisozima.
Para uso exclusivo en investigación. No apto para uso en procedimientos diagnósticos.
Especificaciones
Método de detecciónIntensidad de la fluorescencia
Cantidad400 ensayos
Condiciones de envíoTemperatura ambiente
Propiedades de sustratoSustrato basado en lípidos
Tipo de sustratoSustrato de lisozima
Enzima dianaLisozima
Para utilizar con (aplicación)Ensayo de lisozima
Para utilizar con (equipo)Lector de microplacas de fluorescencia
Línea de productosEnzChek
Tipo de productoEnsayo de lisozima
Unit SizeEach
Contenido y almacenamiento
Almacenar en el congelador de -5 °C a -30 °C y proteger de la luz.

Preguntas frecuentes

How can I limit signal saturation when using the EnzChek Lysozyme Assay Kit (Cat. No. E22013)?

To limit signal saturation when using the EnzChek Lysozyme Assay Kit (Cat. No. E22013), try lowering the voltage (gain) on the PMT (photomultiplier tube). If you are still seeing signal saturation after lowering the voltage, try a shorter reaction time, and/or lower substrate concentration.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

How was the substrate (Component A) in the EnzChek Lysozyme Assay Kit labeled?

The primary amines on the cell wall of Micrococcus lysodeikticus were conjugated to fluorescein.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

May other buffers be used for the EnzChek Lysozyme assay?

Yes. You may use other buffers that are compatible with the enzyme of interest. The buffer provided is optimal for use with chicken egg white lysozyme. If the buffer has a pH <6, adjust the pH to 7.5 to 8 prior to detection for optimal signal from the fluorescein. The emission of fluorescein drops off at pH <6.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

Citations & References (11)

Citations & References
Abstract
Vogesella mureinivorans sp. nov., a peptidoglycan-degrading bacterium from lake water.
Authors:Jørgensen NO, Brandt KK, Nybroe O, Hansen M,
Journal:Int J Syst Evol Microbiol
PubMed ID:19946047
'A novel, non-pigmented, rod-shaped, Gram-negative strain was isolated from mesotrophic lake water in Zealand, Denmark. Phylogenetic analysis of the 16S rRNA gene sequence of the bacterium, designated strain 389(T), indicated that the strain belonged to the genus Vogesella and formed a monophyletic group with Vogesella perlucida DS-28(T) (99.1?% nucleotide similarity); ... More
Structure-function analysis of HsiF, a gp25-like component of the type VI secretion system, in Pseudomonas aeruginosa.
Authors:Lossi NS, Dajani R, Freemont P, Filloux A,
Journal:Microbiology
PubMed ID:21873404
'Bacterial pathogens use a range of protein secretion systems to colonize their host. One recent addition to this arsenal is the type VI secretion system (T6SS), which is found in many Gram-negative bacteria. The T6SS involves 12-15 components, including a ClpV-like AAA(+) ATPase. Moreover, the VgrG and Hcp components have ... More
Mechanisms of systemic vasodilation by lysozyme-c in septic shock.
Authors:Gotes J, Kasian K, Jacobs H, Cheng ZQ, Mink SN,
Journal:J Appl Physiol (1985)
PubMed ID:22096116
In septic shock (SS), cardiovascular collapse is caused by the release of inflammatory mediators. We previously found that lysozyme-c (Lzm-S), released from leukocytes, contributed to systemic vasodilation in a canine model of SS. We then delineated the pathway by which this occurs in a canine carotid artery organ bath preparation ... More
Mutations of the Listeria monocytogenes peptidoglycan N-deacetylase and O-acetylase result in enhanced lysozyme sensitivity, bacteriolysis, and hyperinduction of innate immune pathways.
Authors:Rae CS, Geissler A, Adamson PC, Portnoy DA,
Journal:Infect Immun
PubMed ID:21768286
Listeria monocytogenes is a Gram-positive intracellular pathogen that is naturally resistant to lysozyme. Recently, it was shown that peptidoglycan modification by N-deacetylation or O-acetylation confers resistance to lysozyme in various Gram-positive bacteria, including L. monocytogenes. L. monocytogenes peptidoglycan is deacetylated by the action of N-acetylglucosamine deacetylase (Pgd) and acetylated by ... More
Alcohol use disorders affect antimicrobial proteins and anti-pneumococcal activity in epithelial lining fluid obtained via bronchoalveolar lavage.
Authors:Burnham EL, Gaydos J, Hess E, House R, Cooper J,
Journal:Alcohol Alcohol
PubMed ID:20729531
Our overall objective was to examine whether characteristics of epithelial lining fluid (ELF) from subjects with alcohol use disorders (AUDs) obtained via bronchoalveolar lavage (BAL) contribute to their predisposition to pneumococcal pneumonia. We sought to compare the anti-pneumococcal activity of acellular human BAL from subjects with AUDs to matched controls. ... More