11249738001
Roche
Phytohemagglutinin-L (PHA-L)
from Phaseolus vulgaris
Sinónimos:
PHA-L
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About This Item
Código UNSPSC:
23201100
En este momento no podemos mostrarle ni los precios ni la disponibilidad
Productos recomendados
Nivel de calidad
esterilidad
non-sterile; 0.2 μm filtered
Ensayo
>95% (SDS-PAGE)
Formulario
lyophilized (clear, colorless solution after reconstitution)
envase
pkg of 5 mg
fabricante / nombre comercial
Roche
aplicaciones
hematology
temp. de almacenamiento
2-8°C
Categorías relacionadas
Descripción general
PHA-L is purified from Phaseolus vulgaris (red kidney bean) by standard chromatographic techniques.
Phytohemagglutinin (PHA), the lectin extract from the red kidney bean, consists of only L-type subunits (isolectin L4, "leuko-agglutinin"). It is an N-acetylgalactosamine/galactose sugar-specific lectin. PHA consists of five isolectins (L4E0, L3E1, L2E2, L1E3, L0E4) each being a tetramer held together by noncovalent forces. The subunits L (leukocyte reactive) have a high affinity for lymphocyte surface receptors, but little for those of erythrocytes, and are responsible for the mitogenic properties of the isolectins. E (erythrocyte reactive) is responsible for the erythrocyte-agglutinating properties.[1]
Phytohemagglutinin (PHA), the lectin extract from the red kidney bean, consists of only L-type subunits (isolectin L4, "leuko-agglutinin"). It is an N-acetylgalactosamine/galactose sugar-specific lectin. PHA consists of five isolectins (L4E0, L3E1, L2E2, L1E3, L0E4) each being a tetramer held together by noncovalent forces. The subunits L (leukocyte reactive) have a high affinity for lymphocyte surface receptors, but little for those of erythrocytes, and are responsible for the mitogenic properties of the isolectins. E (erythrocyte reactive) is responsible for the erythrocyte-agglutinating properties.[1]
Aplicación
Phytohemagglutinin-L (PHA-L) consists of only L-type subunits (isolectin L4, "leuko-agglutinin"), and is well suited for high-efficiency induction and the functional analysis of T-lymphocytes.[2] It is highly purified and tested for high-efficiency stimulation of human lymphocytes. It is also used as positive controls for peripheral blood mononuclear cells (PBMC) stimulation.[3][4]
Acciones bioquímicas o fisiológicas
Phytohemagglutinin (PHA) has mitogenic and potent cell agglutinating activities. It binds to T-cell membranes and stimulates cell division and metabolic activity. PHA has the ability to stimulate close contacts between cell membranes.[1]
Especificaciones
Biological activity: <5μg/ml for maximal stimulation of DNA synthesis (BrdU incorporation) with human peripheral blood lymphocytes
Secuencia
PHA-L is a tetramer of 4 L-type subunits held together by noncovalent forces.
Nota de preparación
Working concentration: 1 to 5 μg/ml
Approximately 1 to 5 μg/ml for the stimulation of human peripheral blood lymphocytes
Storage conditions (working solution): -15 to -25 °C
The reconstituted solution is stable at -15 to -25 °C.
Note: Store the reconstituted solution in aliquots at -15 to -25 °C.
Avoid repeated freezing and thawing.
Approximately 1 to 5 μg/ml for the stimulation of human peripheral blood lymphocytes
Storage conditions (working solution): -15 to -25 °C
The reconstituted solution is stable at -15 to -25 °C.
Note: Store the reconstituted solution in aliquots at -15 to -25 °C.
Avoid repeated freezing and thawing.
Otras notas
For life science research only. Not for use in diagnostic procedures.
Código de clase de almacenamiento
11 - Combustible Solids
Clase de riesgo para el agua (WGK)
WGK 2
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
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