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TLS Online TPP Program

#Id: 9297

Nitrite reductase
Nitrite (NO2-) is a highly reactive, potentially toxic ion.
Plant cells immediately transport the nitrite into chloroplasts or plastids.
The enzyme nitrite reductase reduces nitrite to ammonium.
Leaf chloroplasts and root plastids contain different forms of nitrite reductase.
Each polypeptide contains two prosthetic groups, an iron-sulfur group and a specialized heme.
NO3-, high sucrose conc, and light induce the transcription of nitrite reductase mRNA.
Asparagine and glutamine repress the induction.

#XL - R Botany #Nitrogen Metabolism & Biological Nitrogen fixation #Part B Pointers
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TLS Online TPP Program

#Id: 9297

#XL - Q Biochemistry

Nitrite reductase
Nitrite (NO2-) is a highly reactive, potentially toxic ion.
Plant cells immediately transport the nitrite into chloroplasts or plastids.
The enzyme nitrite reductase reduces nitrite to ammonium.
Leaf chloroplasts and root plastids contain different forms of nitrite reductase.
Each polypeptide contains two prosthetic groups, an iron-sulfur group and a specialized heme.
NO3-, high sucrose conc, and light induce the transcription of nitrite reductase mRNA.
Asparagine and glutamine repress the induction.
TLS Online TPP Program

#Id: 9297

#XL - S Microbiology

Nitrite reductase
Nitrite (NO2-) is a highly reactive, potentially toxic ion.
Plant cells immediately transport the nitrite into chloroplasts or plastids.
The enzyme nitrite reductase reduces nitrite to ammonium.
Leaf chloroplasts and root plastids contain different forms of nitrite reductase.
Each polypeptide contains two prosthetic groups, an iron-sulfur group and a specialized heme.
NO3-, high sucrose conc, and light induce the transcription of nitrite reductase mRNA.
Asparagine and glutamine repress the induction.
TLS Online TPP Program

#Id: 8700

#XL - R Botany
TLS Online TPP Program

#Id: 8701

#XL - R Botany
TLS Online TPP Program

#Id: 8702

#XL - R Botany
TLS Online TPP Program

#Id: 8703

#XL - R Botany
TLS Online TPP Program

#Id: 8704

#XL - R Botany
TLS Online TPP Program

#Id: 8705

#XL - R Botany

The cytosolic isozyme has two distinct functions. It catalyzes the conversion of citrate to isocitrate, providing the substrate for a cytosolic isocitrate dehydrogenase that generates NADPH as reducing power for fatty acid synthesis and other anabolic processes in the cytosol. It also has a role in cellular iron homeostasis.