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L8275

Sigma-Aldrich

Lectin from Galanthus nivalis (snowdrop)

lyophilized powder

Synonym(s):

Galanthus nivalis lectin, GNL

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About This Item

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

form

lyophilized powder

Quality Level

potency

<20 μg per mL agglutination activity

composition

Protein, ≥90% Lowry

impurities

salt, essentially free

storage temp.

2-8°C

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General description

Lectin from Galanthus nivalis (snowdrop) is a tetrameric, 12 kDa mannose binding lectin. It belongs to the family, Amaryllidacea. It is specific to α-1,3- or 1,6- linked D-mannose of carbohydrates. Snowdrop lectins are toxic to insects.

Application

Lectin from Galanthus nivalis (snowdrop) has been used:
  • to coat ELISA plates
  • as reverse transcriptase inhibitor
  • in ELISA for detection of envelope glycoproteins of the human and simian immunodeficiency viruses

Biochem/physiol Actions

Lectin from Galanthus nivalis (snowdrop) provide resistance against pests and are used in transgenic plants. Snowdrop lectin functions as a carrier to transport fused proteins to the hemolymph as it crosses gut epithelium of target species to exhibit insecticidal effects.
GNL agglutinates rabbit erythrocytes; human erythrocytes are not agglutinated. GNL sugar specificity is directed to the nonreducing end of the terminal α-D-mannosyl residue of glycoconjugates.

Preparation Note

Purified by affinity chromatography according to Kaku.

Analysis Note

Agglutination activity is expressed in μg/ml and is determined from serial dilution in phosphate buffered saline, pH 7.2 of a 1 mg per mL solution. This activity is the lowest concentration to agglutinate a 2% suspension of rabbit erythrocytes after 1 hr incubation at 25 °C.

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’.

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Jacklyn Johnson et al.
Journal of virology, 94(9) (2020-02-28)
Semen is the primary transmission vehicle for various pathogenic viruses. Initial steps of transmission, including cell attachment and entry, likely occur in the presence of semen. However, the unstable nature of human seminal plasma and its toxic effects on cells
Direct effects of snowdrop lectin (GNA) on larvae of three aphid predators and fate of GNA after ingestion
Hogervorst PAM, et al.
Journal of Insect Physiology, 52, 614-624 (2006)
A model for the hepatitis C virus envelope glycoprotein E2
Yagnik AT, et al.
Proteins: Structure, Function, and Bioinformatics, 40, 355-366 (2000)
Snowdrop lectin.
H Kaku et al.
Methods in enzymology, 179, 327-331 (1989-01-01)
Christina Holmboe Olesen et al.
PLoS pathogens, 17(7), e1009720-e1009720 (2021-07-20)
Hepatitis C virus (HCV) chronically infects 70 million people worldwide with an estimated annual disease-related mortality of 400,000. A vaccine could prevent spread of this pervasive human pathogen, but has proven difficult to develop, partly due to neutralizing antibody evasion

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