11249738001
Roche
Phytohemagglutinin-L (PHA-L)
from Phaseolus vulgaris
Sinônimo(s):
PHA-L
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About This Item
Código UNSPSC:
23201100
Preço e disponibilidade não estão disponíveis no momento.
Produtos recomendados
Nível de qualidade
esterilidade
non-sterile; 0.2 μm filtered
Ensaio
>95% (SDS-PAGE)
Formulário
lyophilized (clear, colorless solution after reconstitution)
embalagem
pkg of 5 mg
fabricante/nome comercial
Roche
aplicação(ões)
hematology
temperatura de armazenamento
2-8°C
Categorias relacionadas
Descrição geral
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]
Aplicação
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]
Ações bioquímicas/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]
Especificações
Biological activity: <5μg/ml for maximal stimulation of DNA synthesis (BrdU incorporation) with human peripheral blood lymphocytes
Sequência
PHA-L is a tetramer of 4 L-type subunits held together by noncovalent forces.
Nota de preparo
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.
Outras notas
For life science research only. Not for use in diagnostic procedures.
Código de classe de armazenamento
11 - Combustible Solids
Classe de risco de água (WGK)
WGK 2
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
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