Patent · US Expired

&agr;-N-acetylgalactosaminidase from Clostridium perfringens

US6399749B1 · kind B1 · utility

1Cited by

0References

1Claims

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Assignee

The Curators of the University of Missouri · US

Inventor

Daniel S. Smith · Columbia, US

Key dates

Filing date	Nov 3, 1998
Grant date	Jun 4, 2002
Priority date	—
Expiry date	Nov 3, 2018

Classification

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

Abstract

An isolated and purified &agr;-N-acetyl-D-galactosaminidase from Clostridium perfringens is disclosed. A method for purifying and isolating the &agr;-N-acetylgalactosaminidase from Clostridium perfringens by removing neuramidases is disclosed. A process for using the &agr;-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 &agr;-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.