Exploring NAD+ metabolism and NNAT: Insights from structure, function, and computational modeling.
Biochimie
; 220: 84-98, 2024 May.
Article
in En
| MEDLINE
| ID: mdl-38182101
ABSTRACT
Nicotinamide Adenine Dinucleotide (NAD+), a coenzyme, is ubiquitously distributed and serves crucial functions in diverse biological processes, encompassing redox reactions, energy metabolism, and cellular signalling. This review article explores the intricate realm of NAD + metabolism, with a particular emphasis on the complex relationship between its structure, function, and the pivotal enzyme, Nicotinate Nucleotide Adenylyltransferase (NNAT), also known as nicotinate mononucleotide adenylyltransferase (NaMNAT), in the process of its biosynthesis. Our findings indicate that NAD + biosynthesis in humans and bacteria occurs via the same de novo synthesis route and the pyridine ring salvage pathway. Maintaining NAD homeostasis in bacteria is imperative, as most bacterial species cannot get NAD+ from their surroundings. However, due to lower sequence identity and structurally distant relationship of bacteria, including E. faecium and K. pneumonia, to its human counterpart, inhibiting NNAT, an indispensable enzyme implicated in NAD + biosynthesis, is a viable alternative in curtailing infections orchestrated by E. faecium and K. pneumonia. By merging empirical and computational discoveries and connecting the intricate NAD + metabolism network with NNAT's crucial role, it becomes clear that the synergistic effect of these insights may lead to a more profound understanding of the coenzyme's function and its potential applications in the fields of therapeutics and biotechnology.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
NAD
/
Nicotinamide-Nucleotide Adenylyltransferase
Type of study:
Prognostic_studies
Limits:
Humans
Language:
En
Journal:
Biochimie
Year:
2024
Document type:
Article
Affiliation country:
South Africa