Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

L9379

Sigma-Aldrich

Lectin from Phytolacca americana (pokeweed)

lyophilized powder

Synonym(s):

PWM, Pokeweed mitogen

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

MDL number:
MFCD00161973
UNSPSC Code:
12352202
NACRES:
NA.32

sterility

aseptically filled

Quality Level

200

form

lyophilized powder

potency

≤0.3 μg/mL mitogenic activity

storage temp.

2-8°C

Looking for similar products? Visit Product Comparison Guide

General description

Lectins are carbohydrate-binding proteins, omnipresent, found in fungi, plants and animals. The structure of lectin is diversely studied in plants and animals. The secondary structure of this protein is rich in β-strands and possesses a carbohydrate binding sites on the surface.

Application

Lectin from Phytolacca americana (pokeweed) has been used:
  • as a medium supplement for mononuclear cell incubation, to induce lymphocyte proliferation
  • as a positive control in the study of the role of chemokine (C–C motif) ligand 2 (CCL2) in proliferation and apoptosis of decidual leukocytes
  • as a supplement in the RPMI (Roswell park memorial institute) 1640 medium for peripheral blood lymphocyte cultures

Biochem/physiol Actions

Lectin is known to be useful in glycoconjugate characterizing, imaging and targeting. Its use in microarray assay, enable efficient glycome profiling. This is because of its specific interaction with oligosaccharides, glycoproteins and glycolipids. In plants and fungi, lectin defends against pathogens/feeders. Lectin participates in host recognition and tissue adhesion, thereby aids in the pathogenesis of microorganism.
PWM is extracted from pokeweed roots. This protein has hemagglutinating, leukoagglutinating, and mitogenic properties. PWM is not blood group specific, but has affinity for N-acetyl-β-D-glucosamine oligomers.

Physical form

Partially purified TCA precipitate.
Essentially salt-free.

Analysis Note

Mitogenic activity was determined by BrdU incorporation in HeLa cell cultures.

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H317,H334

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

The use of a novel combination of diagnostic molecular and cytogenetic approaches in horses with sexual karyotype abnormalities: a rare case with an abnormal cellular chimerism
Demyda P, et al.
Theriogenology, 81(8), 1116-1122 (2014)
Assessment of cellular immune responses of healthy and diseased Tasmanian devils (Sarcophilus harrisii)
Kreiss A, et al.
Developmental and Comparative Immunology, 32(5), 544-553 (2008)
B Hejdeman et al.
HIV medicine, 4(2), 101-110 (2003-04-19)
To study the impact of effective highly active antiretroviral therapy (HAART) on the preservation of long-term CD4 memory cells induced by vaccines in HIV-1-infected patients. Thirty HIV-1-positive patients on HAART with undetectable viral load were randomized into three groups: 10
The immune response of the Tasmanian devil (Sarcophilus harrisii) and devil facial tumour disease
Woods GM, et al.
EcoHealth, 4(3), 338-345 (2007)
W E Müller et al.
European journal of biochemistry, 183(2), 391-396 (1989-08-01)
Previously it was established [Pahwa, S., Pahwa, R., Saxinger, C., Gallo, R. C. & Good, R. A. (1985) Proc. Natl. Acad. Sci. USA 82, 8198] that nonviable preparations of human immunodeficiency virus 1 (HIV-1) abolish the proliferative response of human
View All Related Papers

Articles

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.

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.

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.

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.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service