Synonym: Helix pomatia agglutinin, HPA
| Related Categories | Helix pomatia, Glycan Recognizing Proteins, Glycobiology, Lectins, Post-Translational Modification, |
| form | lyophilized powder |
| potency | <4 μg per mL agglutination activity |
| impurities | salt, free |
| storage temp. | −20°C |
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.
HPA has anti-A human blood group specificity and has an affinity for terminal N-acetyl-α-
Affinity purified by a modification of the method of Hammarstrom and Kabat.2
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