US2014178985A1PendingUtilityA1

Beta 1,4-galactosyltransferases with altered donor and acceptor specificities, compositions and methods of use

Assignee: US OF AMERICA AS REPRESENTED BY THE SECRETARY DEPT OF HEALTH & HUMAN SERVICPriority: Aug 22, 2007Filed: Jul 16, 2013Published: Jun 26, 2014
Est. expiryAug 22, 2027(~1.1 yrs left)· nominal 20-yr term from priority
C12N 9/1051A61K 38/00A61P 7/02A61P 37/04C12P 21/005
50
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Claims

Abstract

The invention relates generally to beta (1,4)-galactosyltransferase I mutants having altered donor and acceptor specificities, and methods of use thereof. In addition, the invention relates to methods for synthesizing oligosaccharides using the beta (1,4)-galactosyltransferase I mutants and to using the beta (1,4)-galactosyltransferase I mutants to conjugate agents, such as therapeutic agents or diagnostic agents, to acceptor molecules.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 - 16 . (canceled) 
     
     
         17 . A nucleic acid molecule comprising SEQ ID NO: 1. 
     
     
         18 . (canceled) 
     
     
         19 . An expression cassette or vector comprising the nucleic acid of  claim 17 . 
     
     
         20 . (canceled) 
     
     
         21 . A host cell comprising the expression cassette or vector of  claim 19  or  20 . 
     
     
         22 - 137 . (canceled) 
     
     
         138 . The nucleic acid molecule of  claim 17 , wherein the nucleic acid molecule encodes a polypeptide fragment of a beta (1,4)-galactosyltransferase I that retains the ability to transfer GalNAc or galactose from a sugar donor to a sugar acceptor. 
     
     
         139 . The nucleic acid molecule of  claim 17 , wherein the nucleic acid consists of SEQ ID NO: 1.

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