Patent · US Expired

α-N-acetylgalactosaminidase from Clostridium perfringens

US7074605B2 · kind B2 · utility

1Cited by
0References
5Claims
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Assignee

Inventor

Key dates

Filing dateJan 29, 2002
Grant dateJul 11, 2006
Priority date—
Expiry dateJan 29, 2022

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC12Y302/01049
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

An isolated and purified α-N-acetyl-D-galactosaminidase from Clostridium perfringens and homologs thereof are disclosed. A method for purifying and isolating the α-N-acetylgalactosaminidase from Clostridium perfringens by removing neuramidases is disclosed. A process for using the α-N-acetylgalactosaminidase from Clostridium perfringens in altering type A blood cells to type O blood cells is disclosed. A process for altering cells expressing blood group A epitope by using α-N-acetylgalactosaminidase isolated from Clostridium perfringens in altering the cells expressing blood group A epitope to cells expressing blood group O epitope is disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.