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L2769

Sigma-Aldrich

Lectin from Phaseolus vulgaris (red kidney bean)

Leucoagglutinin PHA-L, lyophilized powder

Szinonimák:

Phaseolus vulgaris agglutinin, PHA

Bejelentkezésa Szervezeti és Szerződéses árazás megtekintéséhez
Összes fotó(1)

About This Item

UNSPSC kód:
12352202
NACRES:
NA.32

biológiai forrás

Phaseolus vulgaris

Minőségi szint

200

Forma

lyophilized powder

hatékonyság

erythroagglutination activity (Does not agglutinate a 2% suspension of human erythrocytes at <62.5 μg lectin/ml.)
≤1.0 μg/mL leucoagglutination activity
≤5 μg/mL mitogenic activity

összetétel

Protein, ≥60% biuret

szennyeződések

salt, free

tárolási hőmérséklet

2-8°C

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Általános leírás

Phytohemagglutinin (PHA) derived from Phaseolus vulgaris is a tetrameric glycoprotein. It consists of two different subunits, that weighs 120 kDa.

Alkalmazás

Lectin from Phaseolus vulgaris (red kidney bean) has been used:
  • as a positive control in ELISPOT (enzyme-linked immunospot) assay
  • to induce Th2 polarization for T-cell differentiation in vitro
  • as controls in the lymphocyte proliferation assays

Biokémiai/fiziológiai hatások

PHA consists of two molecular species, an erythroagglutinin (PHA-E) which has low mitogenic activity and high erythroagglutinin activity, and leucoagglutinin (PHA-L) which has high mitogenic and leucoagglutinating activity, but very low erythroagglutinating activity.
PHA-E is not blood group specific, but agglutination can be inhibited by certain oligosaccharides. PHA-P is the protein form of PHA prior to separation and purification of erythroagglutinin and leucoagglutinin. PHA-M is the mucoprotein form. Conjugates are prepared from the corresponding purified lectins.

Elkészítési megjegyzés

Purified by a modification of the method of Leavitt.

Analízis megjegyzés

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.

Tárolási osztály kódja

11 - Combustible Solids

WGK

WGK 3

Lobbanási pont (F)

Not applicable

Lobbanási pont (C)

Not applicable

Egyéni védőeszköz

Eyeshields, Gloves, type N95 (US)

Válasszon a legfrissebb verziók közül:

Analitikai tanúsítványok (COA)

Lot/Batch Number
0000379784
0000337077
0000337052
0000299166
0000379784

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Cikkek

Lectin Selection Guide: A Useful Guide for Selecting the Right Lectin

Find the right lectin for your research with our lectin selection guide, organized by lectin source/species, carbohydrate specificity, blood group specificity, and more.

Tudóscsoportunk valamennyi kutatási területen rendelkezik tapasztalattal, beleértve az élettudományt, az anyagtudományt, a kémiai szintézist, a kromatográfiát, az analitikát és még sok más területet.

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