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Merck
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Key Documents

L3382

Sigma-Aldrich

Lectin from Helix pomatia

lyophilized powder, salt, free

Sinónimos:

Helix pomatia agglutinin, HPA

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About This Item

UNSPSC Code:
12352202
NACRES:
NA.32

form

lyophilized powder

Quality Level

200

potency

<4 μg per mL agglutination activity

impurities

salt, free

storage temp.

−20°C

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General description

Lectin from Helix pomatia is a hexameric glycoprotein with a molecular mass of 79 kDa. It issecreted by the albumen gland of the roman snail. Helix pomatia agglutinin (HPA) is specific for N-acetylgalactosamine (GalNAc).

Application

Lectin from Helix pomatia has been used to conjugate with biotin and acridinium and used in lectin-agglutination tests.

Biochem/physiol Actions

Lectin from Helix pomatia protects fertilized eggs by coating them with perivitelline fluid. They exhibit antibacterial activities and immunity in snail. Helix pomatia agglutinin (HPA) possess the potential to agglutinate pathogens. HPA has also emerged as a marker of altered Oglycosylation in cancer.
HPA has anti-A human blood group specificity and has an affinity for terminal N-acetyl-α-D-galactosaminyl residues. Conjugates are prepared from affinity purified lectin.

Preparation Note

Affinity purified by a modification of the method of Hammarstrom and Kabat.

Analysis Note

Where reported, agglutination activity is expressed in μg/ml and is determined from serial dilutions in phosphate buffered saline, pH 6.8, of a 1 mg/ml solution. This activity is the lowest concentration to agglutinate a 2% suspension of human blood group A erythrocytes after 1 hour incubation at 25 °C.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Visite la Librería de documentos

Hammarstrom, S., and Kabat, E.A.
Biochemistry, 95, 311-311 (1978)
Characterization of bovine and human group B streptococci isolated in Turkey
Ekin IH and Gurturk K
Journal of Medical Microbiology, 55(5), 517-521 (2006)
Katie Barr et al.
Transfusion, 55(1), 129-136 (2014-07-22)
The FORS blood group system (originally recognized as the Apae phenotype) was discovered by sporadic activity against polyclonal anti-A reagents and activity against the lectin Helix pomatia. The extent of monoclonal anti-A reagent activity against the FORS1 antigen is serologically
Assay for galactose-deficient IgA1 enables mechanistic studies with primary cells from IgA nephropathy patients
Reily C, et al.
Biotechniques, 65(2), 71-77 (2018)
Binding of aberrant glycoproteins recognizable by Helix pomatia agglutinin in adrenal cancers
Parameswaran R, et al.
BJS open, 2(5), 353-359 (2018)
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