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Table 4 False negative (FN) predictions that could not be corrected by our network modifications.

From: Development and analysis of an in vivo-compatible metabolic network of Mycobacterium tuberculosis

Gene Locus

Gene Name

Pathway

Function/Reaction

Reasons Why Network Modification Could Not Be Made

Rv1304

atpB

Purine metabolism

Synthesis of ATP

The product of this gene catalyzes the reaction together with that of the TN gene atpH

Rv2391

nirA

Vitamin and cofactor metabolism

Reduction of nitrite

The product of this gene catalyzes the reaction together with that of the TN gene nirB

Rv3758c

proV

Transport

Transport of choline, L-carnitine, glycine betaine, and proline

The product of this gene catalyzes the transport of choline, L-carnitine, glycine betaine, and proline together with the TN genes proZ, proW, and proX

Rv2502c

accD1

Sugar metabolism

Convert propionyl-CoA into S-methylmalonyl-CoA

The product of this gene catalyzes the reaction together with the TN gene accA2

Rv2072c

cobL

Porphyrin metabolism

Production of S-adenosyl-L-homocysteine

The product of this gene catalyzes the synthesis of cobalamin together with the TN genes cobK, cobM, cobH, cobN, cobI, and cobG

Rv3534c

Rv3534c

Pyruvate metabolism

Convert 4-hydroxy-2-oxopentanoate into pyruvate

In a pathway without any synthesis or uptake reaction for the metabolite 4-hydroxy-2-oxopentanoate

Rv2241

aceE

Glycolysis/gluconeogenesis

Convert pyruvate into acetyl-CoA

Unable to determine the reason

  1. A false negative (FN) prediction refers to a gene incorrectly predicted to be non-essential.