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Distribution of orphan metabolic activities

Paper ID Volume ID Publish Year Pages File Format Full-Text
37393 45349 2007 6 PDF Available
Title
Distribution of orphan metabolic activities
Abstract

A significant fraction (30–40%) of known metabolic activities is currently orphan. Although orphan activities have been biochemically characterized, we do not know a single gene responsible for these reactions in any organism. The problem of orphan activities represents one of the major challenges of modern biochemistry. We analyze the distribution of orphans across biochemical space, through years of enzymatic characterization, and by biological organisms. We find that orphan metabolic activities have been accumulating for many decades. They are widely distributed across enzymatic functional space and metabolic network neighborhoods. Although orphans are relatively more abundant in less studied species, over half of orphan reactions have been experimentally characterized in more than one organism. Shrinking the space of orphan activities will likely require a close collaboration between computational and experimental laboratories.

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Distribution of orphan metabolic activities
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Publisher
Database: Elsevier - ScienceDirect
Journal: - Volume 25, Issue 8, August 2007, Pages 343–348
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us