L3382
Lectin from Helix pomatia
lyophilized powder, salt, free
Synonym(s):
Helix pomatia agglutinin, HPA
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About This Item
UNSPSC Code:
12352202
NACRES:
NA.32
Recommended Products
form
lyophilized powder
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 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)
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Hammarstrom, S., and Kabat, E.A.
Biochemistry, 95, 311-311 (1978)
Biochemical and structural analysis of helix pomatia agglutinin a hexameric lectin with a novel fold
Sanchez JF, et al.
The Journal of biological chemistry, 281(29), 20171-20180 (2006)
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)
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