PMID: 10281Nov 1, 1976

Inorganic nitrogen assimilation by the photosynthetic bacterium Rhodopseudomonas capsulata

Journal of Bacteriology
B C Johansson, H Gest


The photosynthetic bacterium Rhodopseudomonas capsulata lacks glutamate dehydrogenase and normally uses the glutamine synthetase/glutamate synthase sequence of reactions for assimilation of N2 and ammonia. The glutamine synthetase in cell-free extracts of the organism is completely sedimented by centrifugation at 140,000 X g for 2 h, is inhibited by L-alanine but not by adenosine 5'-monophosphate, and exhibits two apparent Km values for ammonia (ca. 13 muM and 1 mM).


Mar 1, 1980·Archives of Microbiology·Y Aharonowitz, C G Friedrich
Jun 1, 2014·World Journal of Microbiology & Biotechnology·Xiaoping ZhangWenying Shen
Oct 4, 1978·Archives of Microbiology·R A HerbertN Pfennig
Mar 1, 1989·Antonie van Leeuwenhoek·J H Klemme
Jan 1, 1984·Molecular & General Genetics : MGG·S KustuJ C Meeks
Sep 1, 1995·Current Microbiology·C Palaniappan, M Gunasekaran
Apr 27, 1978·Archives of Microbiology·W G Zumft, F Castillo
May 3, 2005·The Journal of General and Applied Microbiology·Chika TadaShigeki Sawayama
Dec 1, 1977·European Journal of Biochemistry·B C Johansson, H Gest
May 22, 2009·The ISME Journal·Timothy J WilliamsRicardo Cavicchioli
Nov 1, 1993·Mycopathologia·C Palaniappan, M Gunasekaran

Related Concepts

Amino Acid Oxidoreductases
Glutamate Dehydrogenase
Glutamate Synthase
Glutamate-Ammonia Ligase
Methionine Sulfoximine

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Neural Activity: Imaging

Imaging of neural activity in vivo has developed rapidly recently with the advancement of fluorescence microscopy, including new applications using miniaturized microscopes (miniscopes). This feed follows the progress in this growing field.

The Tendon Seed Network

Tendons are rich in the extracellular matrix and are abundant throughout the body providing essential roles including structure and mobility. The transcriptome of tendons is being compiled to understand the micro-anatomical functioning of tendons. Discover the latest research pertaining to the Tendon Seed Network here.

Myocardial Stunning

Myocardial stunning is a mechanical dysfunction that persists after reperfusion of previously ischemic tissue in the absence of irreversible damage including myocardial necrosis. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.


Incretins are metabolic hormones that stimulate a decrease in glucose levels in the blood and they have been implicated in glycemic regulation in the remission phase of type 1 diabetes. Here is the latest research.

Chromatin Regulation and Circadian Clocks

The circadian clock plays an important role in regulating transcriptional dynamics through changes in chromatin folding and remodelling. Discover the latest research on Chromatin Regulation and Circadian Clocks here.

Long COVID-19

“Long Covid-19” describes illness in patients who are reporting long-lasting effects of the SARS-CoV-19 infection, often long after they have recovered from acute Covid-19. Ongoing health issues often reported include low exercise tolerance and breathing difficulties, chronic tiredness, and mental health problems such as post-traumatic stress disorder and depression. This feed follows the latest research into Long Covid.

Spatio-Temporal Regulation of DNA Repair

DNA repair is a complex process regulated by several different classes of enzymes, including ligases, endonucleases, and polymerases. This feed focuses on the spatial and temporal regulation that accompanies DNA damage signaling and repair enzymes and processes.