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L4144

Lectina de Phaseolus vulgaris (frijol rojo)

Leucoagglutinin PHA-L, lyophilized powder, BioReagent, suitable for cell culture

Sinónimos:

Aglutinina de Phaseolus vulgaris, PHA

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A ustedes/SKUDisponibilidadPrecio
5 mg
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399,00 €

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UNSPSC Code:
12352202
EC Number:
232-718-7
NACRES:
NA.32
Form:
lyophilized powder

399,00 €


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Quality Segment

product line

BioReagent

form

lyophilized powder

potency

erythroagglutination activity (Does not agglutinate a 2% suspension of human erythrocytes at 250 μg lectin/ml.), ≤1.0 μg per mL leucoagglutination activity, ≤5 μg per mL mitogenic activity (Bromdeoxyuridine incorporation in human peripheral blood mononuclear cells)

technique(s)

cell culture | mammalian: suitable

impurities

salt, free

solubility

DPBS: 5 mg/mL, slightly hazy, colorless

suitability

leucocyte agglutination activity tested

storage temp.

2-8°C

General description

Lectins are carbohydrate-binding proteins, which contains four subunits with a molecular weight of 125 kDa. Leucoagglutinin PHA-L is a plant lectin, which is transported by the neurons in the central nervous system.

Application

Lectin from Phaseolus vulgaris (red kidney bean) has been used:
  • it has been used as a positive control to treat cells
  • to stimulate cell culture for the analysis of lymphocyte proliferation
  • to stimulate T cells

Biochem/physiol Actions

Lectin agglutinates cells and precipitates polysaccharides and glycoproteins. It is associated with toxic allergens and hemagglutinins. Lectin exhibits anti-cancer, anti-human immunodeficiency virus (anti-HIV) and anti-microbial infection properties. Lectin inhibits mucosal atrophy, lowers type 2 diabetes and obesity, enhances nutrient absorption and regulates drug targeting.
La PHA consta de dos especies moleculares, la eritroaglutinina (PHA-E), que tiene poca actividad mitógena y elevada actividad de eritroaglutinina, y la leoucoaglutinina (PHA-L), que tiene elevada actividad mitógena y leoucoaglutinante, pero muy baja actividad eritroaglutininante
La PHA-E no es específica de grupo sanguíneo, pero la aglutinación puede ser inhibida por ciertos oligosacáridos. La PHA-P es la forma proteica de la PHA antes de la separación y la purificación de la eritroaglutinina y la leoucoaglutinina. La PHA-M es la forma mucoproteínica. Los conjugados se preparan a partir de las correspondientes lectinas purificadas.

Analysis Note

Agglutination activity is expressed in μg/ml and is determined from serial dilutions of a 1 mg/ml solution. This activity is the lowest concentration to agglutinate a suspension of either human erythrocytes (2% in phosphate buffered saline, pH 6.8) or human leukocytes (107 per mL in saline) after 1 hr incubation at 25 °C.

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Este artículo
L8754L264661764
technique(s)

cell culture | mammalian: suitable

technique(s)

-

technique(s)

-

technique(s)

tissue culture: suitable

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

form

powder

suitability

leucocyte agglutination activity tested

suitability

-

suitability

-

suitability

-

solubility

DPBS: 5 mg/mL, slightly hazy, colorless

solubility

-

solubility

-

solubility

-

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

impurities

salt, free

impurities

salt, free

impurities

salt, free

impurities

-


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Clase de almacenamiento

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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Preguntas

  1. What do the designations -P, -L, -M, and -E represent in the names of PHA products?

    1 respuesta
    1. Generally, PHA-P or PHA-L is utilized to stimulate lymphocytes, although PHA-M will also work, but not to the same degree. The most active form is PHA-L (the mitogenic concentration is < 5μg/ml). PHA, or Phytohemagglutinin, comprises two molecular species:

      1. Erythroagglutinin (PHA-E), which demonstrates low mitogenic activity and high erythroagglutinating activity.

      2. Leucoagglutinin (PHA-L), which possesses high mitogenic and leucoagglutinating activity, accompanied by very low erythroagglutinating activity.

      PHA-P represents the protein form of PHA before the erythroagglutinin and leucoagglutinin components are separated and purified. PHA-M refers to the mucoprotein form of Phytohemagglutinin.

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