Engineered Sucrose Phosphorylase for Nucleoside Analogue Synthesis
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Solution Overview
Problem
There is a need for more effective compounds that inhibit HIV reverse transcriptase to ameliorate the effects of AIDS, as existing nucleoside analogues face challenges in production due to their chemical complexity.
Innovation Solution
Engineered sucrose phosphorylase enzymes with specific polypeptide sequences and substitutions are developed to enhance the production of pharmaceutical compounds, including those that inhibit HIV reverse transcriptase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If nucleoside analogues are produced by standard chemical synthetic techniques, then the compounds can be manufactured, but the production process becomes challenging due to chemical complexity
Solution Approach 1:
The patent replaces complex chemical synthesis mechanisms with an enzymatic biological system. Sucrose phosphorylase enzymes catalyze the formation of nucleoside analogues through biochemical reactions, substituting the need for complex chemical synthetic techniques and thereby simplifying the manufacturing process while reducing chemical complexity
Solution Approach 2:
The patent modifies the biochemical parameters of the sucrose phosphorylase enzyme through engineering approaches to optimize its catalytic activity for nucleoside analogue production. By changing enzyme parameters such as substrate specificity and catalytic efficiency, the process achieves easier manufacture without requiring complex chemical synthesis pathways
2Reliability
If more effective HIV reverse transcriptase inhibitors are developed, then the inhibitory effect is enhanced, but the production complexity increases
Solution Approach 1:
The patent uses enzymatic catalysis by engineered sucrose phosphorylase to produce nucleoside analogues with enhanced HIV reverse transcriptase inhibitory effects. This biological synthesis mechanism replaces complex chemical synthesis, thereby achieving improved reliability of the inhibitory effect without proportionally increasing production complexity
Solution Approach 2:
The engineered sucrose phosphorylase enzyme serves as an intermediary that facilitates the production of complex nucleoside analogue structures. The enzyme mediates the transformation of simpler substrates into the desired pharmacologically active compounds, enabling enhanced inhibitory effects while managing production complexity through biological catalysis
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The engineered sucrose phosphorylases improve the production of pharmaceutical compounds, particularly those targeting HIV reverse transcriptase, offering enhanced inhibitory effects.
Implementation Method 1
The retrovirus designated as human immunodeficiency virus (HIV) is the etiological agent of acquired immune deficiency syndrome (AIDS), a complex disease that involves progressive destruction of affected individuals' immune systems and degeneration of the central and peripheral nervous systems. A common feature of retrovirus replication is reverse transcription of the viral RNA genome by a virally-encoded reverse transcriptase to generate DNA copies of HIV sequences, required for viral replication.
Data Source
AI summary
The present invention provides engineered sucrose phosphorylase (SP) enzymes, polypeptides having SP activity, and polynucleotides encoding these enzymes, as well as vectors and host cells comprising these polynucleotides and polypeptides. Methods for producing SP enzymes are also provided. The present invention further provides compositions comprising the SP enzymes and methods of using the engineered SP enzymes. The present invention finds particular use in the production of pharmaceutical compounds.